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Feng MX, Jin XQ, Yao H, Zhu TY, Guo SH, Li S, Lei YL, Xing ZG, Zhao XH, Xu TF, Meng JF. Evolution of volatile profile and aroma potential of 'Gold Finger' table grapes during berry ripening. J Sci Food Agric 2022; 102:291-298. [PMID: 34096061 DOI: 10.1002/jsfa.11357] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Revised: 05/09/2021] [Accepted: 06/06/2021] [Indexed: 06/12/2023]
Abstract
BACKGROUND 'Gold Finger' is a grape cultivar with a finger-like shape and a milk flavor. The process by which its aroma profile evolves during ripening is unclear. Thus, changes in the free and bound volatile compounds present in 'Gold Finger' grapes during ripening were investigated using headspace sampling-solid-phase microextraction-gas chromatography-mass spectroscopy (HS-SPME-GC-MS). RESULTS A total of 83 volatile aroma components were identified in the grapes, with aldehydes, esters, acids, and alcohols being the main components. The total aroma compound content exhibited significant differences between the bound and free forms. The total content of bound volatile compounds did not change significantly during fruit development, although the free aroma compound content was significantly higher than the bound content. The total content of free aldehydes, free alcohols, bound norisoprenoids, and ketones gradually increased for up to 70 days after flowering (DAF), while the total free ester, terpene, and acid content decreased. The characteristic aroma compounds of 'Gold Finger' grapes were identified as hexanal, (E)-2-hexenal, and ethyl hexanoate. CONCLUSIONS These results give a foundation for the further development of 'Gold Finger' grapes and provide a theoretical basis for the selection and breeding of novel aromatic grape varieties. © 2021 Society of Chemical Industry.
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Affiliation(s)
- Ming-Xin Feng
- Shaanxi Engineering Research Center for Viti-Viniculture, College of Enology, Northwest A&F University, Yangling, China
| | - Xu-Qiao Jin
- Shaanxi Engineering Research Center for Viti-Viniculture, College of Enology, Northwest A&F University, Yangling, China
| | - Heng Yao
- Shaanxi Engineering Research Center for Viti-Viniculture, College of Enology, Northwest A&F University, Yangling, China
| | - Tong-Yao Zhu
- Shaanxi Engineering Research Center for Viti-Viniculture, College of Enology, Northwest A&F University, Yangling, China
| | - Shui-Huan Guo
- Shaanxi Engineering Research Center for Viti-Viniculture, College of Enology, Northwest A&F University, Yangling, China
| | - Shuai Li
- Shaanxi Engineering Research Center for Viti-Viniculture, College of Enology, Northwest A&F University, Yangling, China
| | - Yu-Lu Lei
- Shaanxi Engineering Research Center for Viti-Viniculture, College of Enology, Northwest A&F University, Yangling, China
| | - Zhi-Gan Xing
- Shaanxi Engineering Research Center for Viti-Viniculture, College of Enology, Northwest A&F University, Yangling, China
| | - Xian-Hua Zhao
- College of Life Sciences and Enology, Taishan University, Taian, China
| | - Teng-Fei Xu
- College of Horticulture, Northwest A&F University, Yangling, China
| | - Jiang-Fei Meng
- Shaanxi Engineering Research Center for Viti-Viniculture, College of Enology, Northwest A&F University, Yangling, China
- Heyang Experimental and Demonstrational Stations for Grape, Northwest A&F University, Heyang, China
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Martakos I, Katsianou P, Koulis G, Efstratiou E, Nastou E, Nikas S, Dasenaki M, Pentogennis M, Thomaidis N. Development of Analytical Strategies for the Determination of Olive Fruit Bioactive Compounds Using UPLC-HRMS and HPLC-DAD. Chemical Characterization of Kolovi Lesvos Variety as a Case Study. Molecules 2021; 26:7182. [PMID: 34885766 PMCID: PMC8659053 DOI: 10.3390/molecules26237182] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Revised: 11/22/2021] [Accepted: 11/23/2021] [Indexed: 11/17/2022] Open
Abstract
In this study, an overall survey regarding the determination of several bioactive compounds in olive fruit is presented. Two methodologies were developed, one UPLC-Q-TOF-MS method for the determination of olive fruit phenolic compounds and one HPLC-DAD methodology targeting the determination of pigments (chlorophylls and carotenoids), tocopherols (α-, β, -γ, δ-) and squalene. Target and suspect screening workflows were developed for the thorough fingerprinting of the phenolic fraction of olives. Both methods were validated, presenting excellent performance characteristics, and can be used as reliable tools for the monitoring of bioactive compounds in olive fruit samples. The developed methodologies were utilized to chemical characterize the fruits of the Kolovi olive variety, originating from the island of Lesvos, North Aegean Region, Greece. Twenty-five phenolic compounds were identified and quantified in Kolovi olives with verbascoside, hydroxytyrosol, oleacein and oleomissional found in significantly high concentrations. Moreover, 12 new bioactive compounds were identified in the samples using an in-house suspect database. The results of pigments analysis suggested that Kolovi variety should be characterized as low pigmentation, while the tocopherol and squalene content was relatively high compared to other olive varieties. The characterization of Kolovi olive bioactive content highlighted the high nutritional and possible economic value of the Kolovi olive fruit.
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Affiliation(s)
- Ioannis Martakos
- Laboratory of Analytical Chemistry, Department of Chemistry, National and Kapodistrian University of Athens, Panepistimiopolis Zographou, 15771 Athens, Greece; (I.M.); (P.K.); (G.K.); (E.E.); (E.N.); (S.N.); (M.P.); (N.T.)
- Laboratory of Food Chemistry, Department of Chemistry, National and Kapodistrian University of Athens, Panepistimiopolis Zographou, 15771 Athens, Greece
| | - Panagiota Katsianou
- Laboratory of Analytical Chemistry, Department of Chemistry, National and Kapodistrian University of Athens, Panepistimiopolis Zographou, 15771 Athens, Greece; (I.M.); (P.K.); (G.K.); (E.E.); (E.N.); (S.N.); (M.P.); (N.T.)
| | - Georgios Koulis
- Laboratory of Analytical Chemistry, Department of Chemistry, National and Kapodistrian University of Athens, Panepistimiopolis Zographou, 15771 Athens, Greece; (I.M.); (P.K.); (G.K.); (E.E.); (E.N.); (S.N.); (M.P.); (N.T.)
- Laboratory of Food Chemistry, Department of Chemistry, National and Kapodistrian University of Athens, Panepistimiopolis Zographou, 15771 Athens, Greece
| | - Elvira Efstratiou
- Laboratory of Analytical Chemistry, Department of Chemistry, National and Kapodistrian University of Athens, Panepistimiopolis Zographou, 15771 Athens, Greece; (I.M.); (P.K.); (G.K.); (E.E.); (E.N.); (S.N.); (M.P.); (N.T.)
| | - Eleni Nastou
- Laboratory of Analytical Chemistry, Department of Chemistry, National and Kapodistrian University of Athens, Panepistimiopolis Zographou, 15771 Athens, Greece; (I.M.); (P.K.); (G.K.); (E.E.); (E.N.); (S.N.); (M.P.); (N.T.)
| | - Stylianos Nikas
- Laboratory of Analytical Chemistry, Department of Chemistry, National and Kapodistrian University of Athens, Panepistimiopolis Zographou, 15771 Athens, Greece; (I.M.); (P.K.); (G.K.); (E.E.); (E.N.); (S.N.); (M.P.); (N.T.)
| | - Marilena Dasenaki
- Laboratory of Analytical Chemistry, Department of Chemistry, National and Kapodistrian University of Athens, Panepistimiopolis Zographou, 15771 Athens, Greece; (I.M.); (P.K.); (G.K.); (E.E.); (E.N.); (S.N.); (M.P.); (N.T.)
- Laboratory of Food Chemistry, Department of Chemistry, National and Kapodistrian University of Athens, Panepistimiopolis Zographou, 15771 Athens, Greece
| | - Michalis Pentogennis
- Laboratory of Analytical Chemistry, Department of Chemistry, National and Kapodistrian University of Athens, Panepistimiopolis Zographou, 15771 Athens, Greece; (I.M.); (P.K.); (G.K.); (E.E.); (E.N.); (S.N.); (M.P.); (N.T.)
| | - Nikolaos Thomaidis
- Laboratory of Analytical Chemistry, Department of Chemistry, National and Kapodistrian University of Athens, Panepistimiopolis Zographou, 15771 Athens, Greece; (I.M.); (P.K.); (G.K.); (E.E.); (E.N.); (S.N.); (M.P.); (N.T.)
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Bento-Silva A, Duarte N, Belo M, Mecha E, Carbas B, Brites C, Vaz Patto MC, Bronze MR. Shedding Light on the Volatile Composition of Broa, a Traditional Portuguese Maize Bread. Biomolecules 2021; 11:biom11101396. [PMID: 34680029 PMCID: PMC8533067 DOI: 10.3390/biom11101396] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Revised: 09/15/2021] [Accepted: 09/16/2021] [Indexed: 11/16/2022] Open
Abstract
In Portugal, maize has been used for centuries to produce an ethnic bread called broa, employing traditional maize varieties, which are preferred by the consumers in detriment of commercial hybrids. In order to evaluate the maize volatiles that can influence consumers’ acceptance of broas, twelve broas were prepared from twelve maize varieties (eleven traditional and one commercial hybrid), following a traditional recipe. All maize flours and broas were analyzed by HS-SPME-GC-MS (headspace solid-phase microextraction) and broas were appraised by a consumer sensory panel. In addition, the major soluble phenolics and total carotenoids contents were quantitated in order to evaluate their influence as precursors or inhibitors of volatile compounds. Results showed that the major volatiles detected in maize flours and broas were aldehydes and alcohols, derived from lipid oxidation, and some ketones derived from carotenoids’ oxidation. Both lipid and carotenoids’ oxidation reactions appeared to be inhibited by soluble phenolics. In contrast, phenolic compounds appeared to increase browning reactions during bread making and, consequently, the production of pyranones. Traditional samples, especially those with higher contents in pyranones and lower contents in aldehydes, were preferred by the consumer sensory panel. These findings suggest that, without awareness, consumers prefer broas prepared from traditional maize flours with higher contents in health-promoting phenolic compounds, reinforcing the importance of preserving these valuable genetic resources.
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Affiliation(s)
- Andreia Bento-Silva
- FCT NOVA, Faculdade de Ciências e Tecnologia, Campus da Caparica, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal;
- ITQB NOVA, Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Avenida da República, 2780-157 Oeiras, Portugal; (M.B.); (E.M.); (M.C.V.P.)
- DCFM, Departamento de Ciências Farmacêuticas e do Medicamento, Faculdade de Farmácia da Universidade de Lisboa, Av. das Forças Armadas, 1649-003 Lisboa, Portugal
- iMed.ULisboa, Instituto de Investigação do Medicamento, Faculdade de Farmácia, Universidade de Lisboa, Avenida Prof. Gama Pinto, 1649-003 Lisboa, Portugal;
| | - Noélia Duarte
- iMed.ULisboa, Instituto de Investigação do Medicamento, Faculdade de Farmácia, Universidade de Lisboa, Avenida Prof. Gama Pinto, 1649-003 Lisboa, Portugal;
| | - Maria Belo
- ITQB NOVA, Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Avenida da República, 2780-157 Oeiras, Portugal; (M.B.); (E.M.); (M.C.V.P.)
| | - Elsa Mecha
- ITQB NOVA, Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Avenida da República, 2780-157 Oeiras, Portugal; (M.B.); (E.M.); (M.C.V.P.)
| | - Bruna Carbas
- INIAV, Instituto Nacional de Investigação Agrária e Veterinária, Avenida da República, Quinta do Marquês, 2780-157 Oeiras, Portugal; (B.C.); (C.B.)
| | - Carla Brites
- INIAV, Instituto Nacional de Investigação Agrária e Veterinária, Avenida da República, Quinta do Marquês, 2780-157 Oeiras, Portugal; (B.C.); (C.B.)
| | - Maria Carlota Vaz Patto
- ITQB NOVA, Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Avenida da República, 2780-157 Oeiras, Portugal; (M.B.); (E.M.); (M.C.V.P.)
| | - Maria Rosário Bronze
- ITQB NOVA, Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Avenida da República, 2780-157 Oeiras, Portugal; (M.B.); (E.M.); (M.C.V.P.)
- iMed.ULisboa, Instituto de Investigação do Medicamento, Faculdade de Farmácia, Universidade de Lisboa, Avenida Prof. Gama Pinto, 1649-003 Lisboa, Portugal;
- iBET, Instituto de Biologia Experimental e Tecnológica, Avenida da República, Quinta do Marquês, Estação Agronómica Nacional, Apartado 12, 2780-157 Oeiras, Portugal
- Correspondence:
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Latifah SY, Gopalsamy B, Abdul Rahim R, Manaf Ali A, Haji Lajis N. Anticancer Potential of Damnacanthal and Nordamnacanthal from Morinda elliptica Roots on T-lymphoblastic Leukemia Cells. Molecules 2021; 26:molecules26061554. [PMID: 33808969 PMCID: PMC7998966 DOI: 10.3390/molecules26061554] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Revised: 02/01/2021] [Accepted: 02/02/2021] [Indexed: 12/24/2022] Open
Abstract
Background: This study reports on the cytotoxic properties of nordamnacanthal and damnacanthal, isolated from roots of Morinda elliptica on T-lymphoblastic leukaemia (CEM-SS) cell lines. Methods: MTT assay, DNA fragmentation, ELISA and cell cycle analysis were carried out. Results: Nordamnacanthal and damnacanthal at IC50 values of 1.7 μg/mL and10 μg/mL, respectively. At the molecular level, these compounds caused internucleosomal DNA cleavage producing multiple 180–200 bp fragments that are visible as a “ladder” on the agarose gel. This was due to the activation of the Mg2+/Ca2+-dependent endonuclease. The induction of apoptosis by nordamnacanthal was different from the one induced by damnacanthal, in a way that it occurs independently of ongoing transcription process. Nevertheless, in both cases, the process of dephosphorylation of protein phosphates 1 and 2A, the ongoing protein synthesis and the elevations of the cytosolic Ca2+ concentration were not needed for apoptosis to take place. Nordamnacanthal was found to have a cytotoxic effect by inducing apoptosis, while damnacanthal caused arrest at the G0/G1 phase of the cell cycle. Conclusion: Damnacanthal and nordamnacanthal have anticancer properties, and could act as potential treatment for T-lymphoblastic leukemia.
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Affiliation(s)
- Saiful Yazan Latifah
- Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Serdang 43400 UPM, Selangor, Malaysia;
- Correspondence: ; Tel.: +603-89472308
| | - Banulata Gopalsamy
- Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Serdang 43400 UPM, Selangor, Malaysia;
| | - Raha Abdul Rahim
- Department of Cell and Molecular Biology, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, Serdang 43400 UPM, Selangor, Malaysia;
| | - Abdul Manaf Ali
- Faculty of Bioresources and Food Industry, Universiti Sultan Zainal Abidin (UniSZA), Kuala 20300, Terengganu, Malaysia;
| | - Nordin Haji Lajis
- Laboratory of Natural Products, Institute of Bioscience, Universiti Putra Malaysia, Serdang 43400 UPM, Selangor, Malaysia;
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Francioso A, Federico R, Maggiore A, Fontana M, Boffi A, D’Erme M, Mosca L. Green Route for the Isolation and Purification of Hyrdoxytyrosol, Tyrosol, Oleacein and Oleocanthal from Extra Virgin Olive Oil. Molecules 2020; 25:molecules25163654. [PMID: 32796621 PMCID: PMC7464626 DOI: 10.3390/molecules25163654] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2020] [Revised: 07/29/2020] [Accepted: 08/10/2020] [Indexed: 11/16/2022] Open
Abstract
Extra virgin olive oil (EVOO) phenols represent a significant part of the intake of antioxidants and bioactive compounds in the Mediterranean diet. In particular, hydroxytyrosol (HTyr), tyrosol (Tyr), and the secoiridoids oleacein and oleocanthal play central roles as anti-inflammatory, neuro-protective and anti-cancer agents. These compounds cannot be easily obtained via chemical synthesis, and their isolation and purification from EVOO is cumbersome. Indeed, both processes involve the use of large volumes of organic solvents, hazardous reagents and several chromatographic steps. In this work we propose a novel optimized procedure for the green extraction, isolation and purification of HTyr, Tyr, oleacein and oleocanthal directly from EVOO, by using a Natural Deep Eutectic Solvent (NaDES) as an extracting phase, coupled with preparative high-performance liquid chromatography. This purification method allows the total recovery of the four components as single pure compounds directly from EVOO, in a rapid, economic and ecologically sustainable way, which utilizes biocompatible reagents and strongly limits the use or generation of hazardous substances.
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Affiliation(s)
- Antonio Francioso
- Department of Biochemical Sciences, “Sapienza” University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy; (A.M.); (M.F.); (A.B.); (M.D.); (L.M.)
- Correspondence: ; Tel.: +39-06-4991-0987
| | - Rodolfo Federico
- MOLIROM s.r.l, via Carlo Bartolomeo Piazza 8, 00161 Rome, Italy;
| | - Anna Maggiore
- Department of Biochemical Sciences, “Sapienza” University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy; (A.M.); (M.F.); (A.B.); (M.D.); (L.M.)
| | - Mario Fontana
- Department of Biochemical Sciences, “Sapienza” University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy; (A.M.); (M.F.); (A.B.); (M.D.); (L.M.)
| | - Alberto Boffi
- Department of Biochemical Sciences, “Sapienza” University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy; (A.M.); (M.F.); (A.B.); (M.D.); (L.M.)
- MOLIROM s.r.l, via Carlo Bartolomeo Piazza 8, 00161 Rome, Italy;
| | - Maria D’Erme
- Department of Biochemical Sciences, “Sapienza” University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy; (A.M.); (M.F.); (A.B.); (M.D.); (L.M.)
| | - Luciana Mosca
- Department of Biochemical Sciences, “Sapienza” University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy; (A.M.); (M.F.); (A.B.); (M.D.); (L.M.)
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Diamantakos P, Giannara T, Skarkou M, Melliou E, Magiatis P. Influence of Harvest Time and Malaxation Conditions on the Concentration of Individual Phenols in Extra Virgin Olive Oil Related to Its Healthy Properties. Molecules 2020; 25:molecules25102449. [PMID: 32456326 PMCID: PMC7287853 DOI: 10.3390/molecules25102449] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Revised: 05/18/2020] [Accepted: 05/21/2020] [Indexed: 11/16/2022] Open
Abstract
The phenolic fraction of the extra virgin olive oil (EVOO) has been studied over the past two decades because of its important health protective properties. Numerous studies have been performed in order to clarify the most crucial factors that affect the concentration of the EVOO’s phenolic fraction and many contradictory results have been reported. Having as target to maximize the phenolic content of EVOO and its healthy properties we investigated the impact of harvest time, malaxation temperature, and malaxation duration on the concentration of individual phenols in extra virgin olive oil. Olive oil was prepared in a lab-scale olive mill from different varieties in Greece. The extraction process for cultivar (cv) Koroneiki samples was performed at five different harvest periods from the same trees with three different malaxation temperatures and five different malaxation duration times (N = 75). Similar types of experiments were also performed for other varieties: cv Athenolia (N = 20), cv Olympia (N = 3), cv Kalamata (N = 3), and cv Throubolia Aegean (N=3) in order to compare the changes in the phenolic profile during malaxation. The quantitative analysis of the olive oil samples with NMR showed that the total phenolic content has a negative correlation with the ripening degree and the malaxation time. The NMR data we collected helped us to quantitate not only the total phenolic content but also the concentration of the major phenolic compounds such as oleocanthal, oleacein, oleokoronal, and oleomissional. We noticed different trends for the concentration of these phenols during malaxation process and for different malaxation temperatures. The different trends of the concentration of the individual phenols during malaxation and the completely different behavior of each variety revealed possible biosynthetic formation steps for oleocanthal and oleacein and may explain the discrepancies reported from previous studies.
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Bennato F, Innosa D, Ianni A, Martino C, Grotta L, Martino G. Volatile Profile in Yogurt Obtained from Saanen Goats Fed with Olive Leaves. Molecules 2020; 25:E2311. [PMID: 32423117 PMCID: PMC7287967 DOI: 10.3390/molecules25102311] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Revised: 05/10/2020] [Accepted: 05/13/2020] [Indexed: 01/19/2023] Open
Abstract
The aim of this study was to evaluate the development of volatile compounds in yogurt samples obtained from goats fed a dietary supplementation with olive leaves (OL). For this purpose, thirty Saanen goats were divided into two homogeneous groups of 15 goats each: a control group that received a standard diet (CG) and an experimental group whose diet was supplemented with olive leaves (OLG). The trial lasted 28 days, at the end of which the milk of each group was collected and used for yogurt production. Immediately after production, and after 7 days of storage at 4 °C in the absence of light, the yogurt samples were characterized in terms of fatty acid profile, oxidative stability and volatile compounds by the solid-phase microextraction (SPME)-GC/MS technique. Dietary OL supplementation positively affected the fatty acid composition, inducing a significant increase in the relative proportion of unsaturated fatty acids, mainly oleic acid (C18:1 cis9) and linolenic acid (C18:3). With regard to the volatile profile, both in fresh and yogurt samples stored for 7 days, the OL supplementation induced an increase in free fatty acids, probably due to an increase in lipolysis carried out by microbial and endogenous milk enzymes. Specifically, the largest variations were found for C6, C7, C8 and C10 free fatty acids. In the same samples, a significant decrease in aldehydes, mainly heptanal and nonanal, was also detected, supporting-at least in part-an improvement in the oxidative stability. Moreover, alcohols, esters and ketones appeared lower in OLG samples, while no significant variations were observed for lactones. These findings suggest the positive role of dietary OL supplementation in the production of goats' milk yogurt, with characteristics potentially indicative of an improvement in nutritional properties and flavor.
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Affiliation(s)
- Francesca Bennato
- Faculty of BioScience and Technology for Food, Agriculture and Environment, University of Teramo, Via Renato Balzarini 1, 64100 Teramo, Italy; (F.B.); (D.I.); (A.I.); (L.G.)
| | - Denise Innosa
- Faculty of BioScience and Technology for Food, Agriculture and Environment, University of Teramo, Via Renato Balzarini 1, 64100 Teramo, Italy; (F.B.); (D.I.); (A.I.); (L.G.)
| | - Andrea Ianni
- Faculty of BioScience and Technology for Food, Agriculture and Environment, University of Teramo, Via Renato Balzarini 1, 64100 Teramo, Italy; (F.B.); (D.I.); (A.I.); (L.G.)
| | - Camillo Martino
- Istituto Zooprofilattico Sperimentale dell’Abruzzo e del Molise “G. Caporale”, Via Campo Boario 37, 64100 Teramo, Italy;
| | - Lisa Grotta
- Faculty of BioScience and Technology for Food, Agriculture and Environment, University of Teramo, Via Renato Balzarini 1, 64100 Teramo, Italy; (F.B.); (D.I.); (A.I.); (L.G.)
| | - Giuseppe Martino
- Faculty of BioScience and Technology for Food, Agriculture and Environment, University of Teramo, Via Renato Balzarini 1, 64100 Teramo, Italy; (F.B.); (D.I.); (A.I.); (L.G.)
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Yang W, Pu H, Wang L, Hu Q, Mariga AM, Zheng H. Effect of bound water on the quality of dried Lentinus edodes during storage. J Sci Food Agric 2020; 100:1971-1979. [PMID: 31846079 DOI: 10.1002/jsfa.10210] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2019] [Revised: 09/13/2019] [Accepted: 12/17/2019] [Indexed: 06/10/2023]
Abstract
BACKGROUND Water absorption is the dominant factor affecting the quality deterioration of dried Lentinus edodes. We therefore analyzed the effect of moisture content and dynamic water status on physical properties of the mushroom stored at water activity (aw ), 0.33, 0.43, 0.67, 0.76, and 0.84 for 50 days. Moisture mobility and water status were analyzed using low-field nuclear magnetic resonance, while hardness and microstructure were determined as texture characteristics. Meanwhile, an electronic nose and headspace solid-phase micro-extraction combined with gas chromatography-mass spectrometry (HS-SPME-GC-MS) were used to analyze the flavor properties of dried L. edodes. RESULTS The results showed that bound water was the dominant water status in dried L. edodes. The content and molecular mobility of bound water increased at aw = 0.67, 0.76, and 0.84. This contributed to discoloration, hardness loss, and microstructure sparsity of dried L. edodes. The increasing content and molecular mobility of bound water aggravated the deterioration of characteristic flavor by reducing acid, aldehyde, and ketone content. CONCLUSION Unlike immobilized or free water, bound water had a critical influence on the quality deterioration of dried L. edodes during storage. © 2019 Society of Chemical Industry.
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Affiliation(s)
- Wenjian Yang
- Key Laboratory of Grains and Oils Quality Control and Processing, Collaborative Innovation Center for Modern Grain Circulation and Safety, College of Food Science and Engineering, Nanjing University of Finance and Economics, Nanjing, China
| | - Haoliang Pu
- Key Laboratory of Grains and Oils Quality Control and Processing, Collaborative Innovation Center for Modern Grain Circulation and Safety, College of Food Science and Engineering, Nanjing University of Finance and Economics, Nanjing, China
| | - Liuqing Wang
- Key Laboratory of Grains and Oils Quality Control and Processing, Collaborative Innovation Center for Modern Grain Circulation and Safety, College of Food Science and Engineering, Nanjing University of Finance and Economics, Nanjing, China
| | - Qiuhui Hu
- Key Laboratory of Grains and Oils Quality Control and Processing, Collaborative Innovation Center for Modern Grain Circulation and Safety, College of Food Science and Engineering, Nanjing University of Finance and Economics, Nanjing, China
| | - Alfred M Mariga
- School of Agriculture and Food Science, Meru University of Science Technology, Meru, Kenya
| | - Huihua Zheng
- Key Laboratory of Edible Mushroom Processing, Ministry of Agriculture and Rural Affairs, Jiangsu Anhui Biological Technology Company Limited, Nantong, China
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9
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Abstract
We developed a chemical derivatization based ultra-high performance liquid chromatography-hybrid quadrupole-Orbitrap mass spectrometer (UHPLC-Q-Orbitrap MS) analytical method to identify low-abundant and instable carotenoid-derived dialdehydes (DIALs, diapocarotenoids) from plants. Application of this method enhances the MS response signal of DIALs, enabling the detection of diapocarotenoids, which is crucial for understanding the function of these compounds and for elucidating the carotenoid oxidative metabolic pathway in plants.
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Affiliation(s)
- Jianing Mi
- The BioActives Lab, Biological and Environmental Sciences and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, Kingdom of Saudi Arabia
| | - Kun-Peng Jia
- The BioActives Lab, Biological and Environmental Sciences and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, Kingdom of Saudi Arabia
| | - Aparna Balakrishna
- The BioActives Lab, Biological and Environmental Sciences and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, Kingdom of Saudi Arabia
| | - Salim Al-Babili
- The BioActives Lab, Biological and Environmental Sciences and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, Kingdom of Saudi Arabia.
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10
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Cecchi L, Migliorini M, Giambanelli E, Rossetti A, Cane A, Mulinacci N. New Volatile Molecular Markers of Rancidity in Virgin Olive Oils under Nonaccelerated Oxidative Storage Conditions. J Agric Food Chem 2019; 67:13150-13163. [PMID: 31684730 DOI: 10.1021/acs.jafc.9b05809] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Evolution of the volatile profile of two extra-virgin olive oils with very different fatty acid composition (monounsaturated fatty acid/polyunsaturated fatty acid ratio) stored in several nonaccelerated oxidative conditions was studied by a validated headspace solid-phase microextraction-gas chromatography-mass spectrometry (HS-SPME-GC-MS) method. The role of C8 volatile compounds in oxidative processes was highlighted, and controversial aspects regarding the origin of some volatiles were clarified. Specific volatile markers for rancidity were proposed: sum of pentanal, hexanal, nonanal, E-2-heptenal, propanoic acid, and hexanoic acid for oils stored in the dark; sum of pentanal, heptanal, nonanal, decanal, E-2-heptenal, E-2-decenal, E,E-hepta-2,4-dienal, and E,E-deca-2,4-dienal, octane for oils stored under light exposure; sum of pentanal, nonanal, decanal, E-2-heptenal, E-2-decenal, E,E-hepta-2,4-dienal, nonan-1-ol, propanoic acid, octane, 6-methylhept-5-en-2-one, and oct-1-en-3-ol for oils stored under light exposure with oxygen in headspace. A simplified marker (sum of pentanal, nonanal and E-2-heptenal) suitable for all conditions was also proposed.
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Affiliation(s)
- Lorenzo Cecchi
- Dipartimento di NEUROFARBA , Università degli Studi di Firenze , Via Ugo Schiff 6 , Sesto F.no, 50019 Firenze , Italia
- Multidisciplinary Centre of Research on Food Sciences (M.C.R.F.S.-Ce.R.A.) , Sesto F.no, 50019 Firenze , Italia
| | - Marzia Migliorini
- Carapelli Firenze S.p.A. , Via Leonardo da Vinci 31 , Tavarnelle Val di Pesa, 50028 Firenze , Italy
| | - Elisa Giambanelli
- Carapelli Firenze S.p.A. , Via Leonardo da Vinci 31 , Tavarnelle Val di Pesa, 50028 Firenze , Italy
| | - Adolfo Rossetti
- Carapelli Firenze S.p.A. , Via Leonardo da Vinci 31 , Tavarnelle Val di Pesa, 50028 Firenze , Italy
| | - Anna Cane
- Carapelli Firenze S.p.A. , Via Leonardo da Vinci 31 , Tavarnelle Val di Pesa, 50028 Firenze , Italy
| | - Nadia Mulinacci
- Dipartimento di NEUROFARBA , Università degli Studi di Firenze , Via Ugo Schiff 6 , Sesto F.no, 50019 Firenze , Italia
- Multidisciplinary Centre of Research on Food Sciences (M.C.R.F.S.-Ce.R.A.) , Sesto F.no, 50019 Firenze , Italia
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11
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Wasilewski T, Szulczyński B, Wojciechowski M, Kamysz W, Gębicki J. A Highly Selective Biosensor Based on Peptide Directly Derived from the HarmOBP7 Aldehyde Binding Site. Sensors (Basel) 2019; 19:s19194284. [PMID: 31623308 PMCID: PMC6806164 DOI: 10.3390/s19194284] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/08/2019] [Revised: 09/30/2019] [Accepted: 10/01/2019] [Indexed: 01/15/2023]
Abstract
This paper presents the results of research on determining the optimal length of a peptide chain to effectively bind octanal molecules. Peptides that map the aldehyde binding site in HarmOBP7 were immobilized on piezoelectric transducers. Based on computational studies, four Odorant Binding Protein-derived Peptides (OBPPs) with different sequences were selected. Molecular modelling results of ligand docking with selected peptides were correlated with experimental results. The use of low-molecular synthetic peptides, instead of the whole protein, enabled the construction OBPPs-based biosensors. This work aims at developing a biomimetic piezoelectric OBPPs sensor for selective detection of octanal. Moreover, the research is concerned with the ligand binding affinity depending on different peptides’ chain lengths. The authors believe that the chain length can have a substantial influence on the type and effectiveness of peptide–ligand interaction. A confirmation of in silico investigation results is the correlation with the experimental results, which shows that the highest affinity to octanal is exhibited by the longest peptide (OBPP4 – KLLFDSLTDLKKKMSEC-NH2). We hypothesized that the binding of long chain aldehydes to the peptide, mimicking the binding site of HarmOBP7, induced a conformational change in the peptide deposited on a selected transducer. The constructed OBPP4-based biosensors were able to selectively bind octanal in the gas phase. It was also shown that the sensors were characterized by high selectivity with respect to octanal, as well as to acetaldehyde and benzaldehyde. The results indicate that the OBPP4 peptide, mimicking the binding domain in the Odorant Binding Protein, can provide new opportunities for the development of biomimicking materials in the field of odor biosensors.
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Affiliation(s)
- Tomasz Wasilewski
- Department of Inorganic Chemistry, Faculty of Pharmacy, Medical University of Gdańsk, Hallera 107, 80-416 Gdansk, Poland.
| | - Bartosz Szulczyński
- Department of Process Engineering and Chemical Technology, Chemical Faculty, Gdańsk University of Technology, Narutowicza 11/12, 80-233 Gdańsk, Poland.
| | - Marek Wojciechowski
- Department of Pharmaceutical Technology and Biochemistry, Chemical Faculty, Gdansk University of Technology, Narutowicza 11/12, 80-233 Gdańsk, Poland.
| | - Wojciech Kamysz
- Department of Inorganic Chemistry, Faculty of Pharmacy, Medical University of Gdańsk, Hallera 107, 80-416 Gdansk, Poland.
| | - Jacek Gębicki
- Department of Process Engineering and Chemical Technology, Chemical Faculty, Gdańsk University of Technology, Narutowicza 11/12, 80-233 Gdańsk, Poland.
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12
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Lee SM, Kim SB, Kim YS. Determination of Key Volatile Compounds Related to Long-Term Fermentation of Soy Sauce. J Food Sci 2019; 84:2758-2776. [PMID: 31509249 DOI: 10.1111/1750-3841.14771] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2019] [Revised: 07/08/2019] [Accepted: 07/25/2019] [Indexed: 11/27/2022]
Abstract
The changes of volatile compounds in soy sauce during long-term fermentation (12 months) were investigated using solid-phase microextraction (SPME) and stir bar sorptive extraction (SBSE). A total of 144 and 129 compounds were identified in soy sauce with long-term fermentation by SPME and SBSE, respectively. The contents of most compounds, such as acids, aldehydes, benzene and benzene derivatives, esters, lactones, pyrazines, pyrones, and pyrroles, showed a tendency to increase, whereas those of alcohols and ketones decreased according to long-term fermentation. In addition, principal component analysis and partial least squares discriminant analysis were applied to discriminate soy sauce samples according to fermentation periods and determine key volatile compounds related to long-term fermentation. The initial fermentation stages were mainly associated with some alcohols, ketones, and lactones, whereas the later stages were strongly associated with most esters, some phenols, benzene and benzene derivatives, and pyrroles. Moreover, the key volatile compounds associated with long-term fermentation in soy sauce samples were ethyl 3-methylbutanoate (ethyl isovalerate), ethyl pentanoate (ethyl valerate), 1-octen-3-yl acetate, 3-(methylthio)-1-propanol (methionol), ethyl benzoate, ethyl 2-phenylacetate, 1-(1H-pyrrol-2-yl)ethanone (2-acetylpyrrole), and 5-pentyl-2-oxolanone (γ-nonalactone). PRACTICAL APPLICATION: This study investigated changes of volatile compounds in soy sauce during long-term fermentation (12 months) using solid-phase microextraction and stir bar sorptive extraction. In addition, the key volatile compounds associated with long-term fermentation in soy sauce samples were determined. These results may help to predict the effective contributors related to long-term fermentation of soy sauce and improve the quality of soy sauce during long-term fermentation.
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Affiliation(s)
- Sang Mi Lee
- Dept. of Food Science and Engineering, Ewha Womans Univ., 11-1 Daehyun-dong, Seodaemun-gu, Seoul, 120-750, Republic of Korea
| | - Sa-Bin Kim
- Dept. of Food Science and Engineering, Ewha Womans Univ., 11-1 Daehyun-dong, Seodaemun-gu, Seoul, 120-750, Republic of Korea
| | - Young-Suk Kim
- Dept. of Food Science and Engineering, Ewha Womans Univ., 11-1 Daehyun-dong, Seodaemun-gu, Seoul, 120-750, Republic of Korea
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13
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Alqadeeri F, Rukayadi Y, Abbas F, Shaari K. Antibacterial and Antispore Activities of Isolated Compounds from Piper cubeba L. Molecules 2019; 24:molecules24173095. [PMID: 31454974 PMCID: PMC6749514 DOI: 10.3390/molecules24173095] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2019] [Revised: 06/23/2019] [Accepted: 07/09/2019] [Indexed: 11/16/2022] Open
Abstract
Piper cubeba L. is the berry of a shrub that is indigenous to Java, Southern Borneo, Sumatra, and other islands in the Indian Ocean. The plant is usually used in folk traditional medicine and is an important ingredient in cooking. The purpose of this study was to isolate and purify the bioactive compounds from P. cubeba L. fractions. In addition, the isolated compounds were tested for their antibacterial and antispore activities against vegetative cells and spores of Bacillus cereus ATCC33019, B. subtilis ATCC6633, B. pumilus ATCC14884, and B. megaterium ATCC14581. The phytochemical investigation of the DCM fraction yielded two known compounds: β-asarone (1), and asaronaldehyde (2) were successfully isolated and identified from the methanol extract and its fractions of P. cubeba L. Results showed that exposing the vegetative cells of Bacillus sp. to isolated compounds resulted in an inhibition zone with a large diameter ranging between 7.21 to 9.61 mm. The range of the minimum inhibitory concentration (MIC) was between 63.0 to 125.0 µg/mL and had minimum bactericidal concentration (MBC) at 250.0 to 500.0 µg/mL against Bacillus sp. Isolated compounds at a concentration of 0.05% inactivated more than 3-Log10 (90.99%) of the spores of Bacillus sp. after an incubation period of four hours, and all the spores were killed at a concentration of 0.1%. The structures were recognizably elucidated based on 1D and 2D-NMR analyses (1H, 13C, COSY, HSQC, and HMBC) and mass spectrometry data. Compounds 1, and 2 were isolated for the first time from this plant. In conclusion, the two compounds show a promising potential of antibacterial and sporicidal activities against Bacillus sp. and thus can be developed as an anti-Bacillus agent.
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Affiliation(s)
- Fatimah Alqadeeri
- Laboratory of Natural Products, Institute of Bioscience, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia
| | - Yaya Rukayadi
- Laboratory of Natural Products, Institute of Bioscience, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia.
- Department of Food Science, Faculty of Food Science and Technology, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia.
| | - Faridah Abbas
- Laboratory of Natural Products, Institute of Bioscience, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia
- Department of Food Science, Faculty of Food Science and Technology, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia
| | - Khozirah Shaari
- Laboratory of Natural Products, Institute of Bioscience, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia
- Department of Chemistry, Faculty of Science, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia
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14
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Arsa S, Theerakulkait C, Cadwallader KR. Quantitation of Three Strecker Aldehydes from Enzymatic Hydrolyzed Rice Bran Protein Concentrates as Prepared by Various Conditions. J Agric Food Chem 2019; 67:8205-8211. [PMID: 31250639 DOI: 10.1021/acs.jafc.9b02025] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
The quantitation of three Strecker aldehydes-2-methypropanal (2-MP), 2-methylbutanal (2-MB), and 3-methylbutanal (3-MB)-from rice bran protein hydrolysate (RBPH) prepared under various conditions were investigated. The preparation conditions included hydrolysis time (0, 0.25, 2, 4, or 8 h), pH adjustment (pH 4.0, 7.0, or 10.0), and sugar addition (sucrose, glucose, or fructose). These conditions provide a significant potential for aroma generation from the Strecker degradation and Maillard reaction. The Strecker aldehyde quantitation was performed using gas chromatography (GC) with cryo-focusing technique. These combined techniques encourage the precise 2-MB and 3-MB quantitation. The highest concentrations of three Strecker aldehydes were found in RBPH that was prepared by alcalase hydrolysis at 4 h with fructose addition (RBPH-F) and adjusted to pH 7.0 before spray drying. Thirty-nine aroma-active compounds of RBPH-F were discovered using solid-phase microextraction coupled with GC-olfactometry.
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Affiliation(s)
- Supeeraya Arsa
- Faculty of Agro-Industry , King Mongkut's Institute of Technology Ladkrabang , Bangkok 10520 , Thailand
| | | | - Keith R Cadwallader
- Department of Food Science and Human Nutrition , University of Illinois at Urbana-Champaign , Urbana , Illinois 61801 , United States
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15
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Mi J, Jia KP, Balakrishna A, Feng Q, Al-Babili S. A Highly Sensitive SPE Derivatization-UHPLC-MS Approach for Quantitative Profiling of Carotenoid-Derived Dialdehydes from Vegetables. AIDS Behav 2019; 67:5899-5907. [PMID: 31055928 PMCID: PMC7722347 DOI: 10.1021/acs.jafc.9b01749] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
Abstract
Oxidative cleavage of carotenoids leads to dialdehydes (diapocarotenoids, DIALs) in addition to the widely known apocarotenoids. DIALs are biologically active compounds that presumably impact human health and play different roles in plant development and carotenoid metabolism. However, detection of DIALs in plants is challenging due to their instability, low abundance, and poor ionization efficiency in mass spectrometry. Here, we developed a solid-phase extraction and derivatization protocol coupled with ultrahigh performance liquid chromatography-mass spectrometry for quantitative profiling of DIALs. Our method significantly enhances the sensitivity of DIAL detection with a detection limit of 0.05 pg/mg of dried food materials, allowing unambiguous profiling of 30 endogenous DIALs with C5 to C24 from vegetables. Our work provides a new and efficient approach for determining the content of DIALs from various complex matrices, paving the way for uncovering the functions of DIALs in human health and plant growth and development.
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Affiliation(s)
- Jianing Mi
- King Abdullah University of Science and Technology (KAUST), Biological and Environmental Sciences and Engineering Division, The BioActives Lab, Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Kun-Peng Jia
- King Abdullah University of Science and Technology (KAUST), Biological and Environmental Sciences and Engineering Division, The BioActives Lab, Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Aparna Balakrishna
- King Abdullah University of Science and Technology (KAUST), Biological and Environmental Sciences and Engineering Division, The BioActives Lab, Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Qitong Feng
- King Abdullah University of Science and Technology (KAUST), Biological and Environmental Sciences and Engineering Division, The BioActives Lab, Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Salim Al-Babili
- King Abdullah University of Science and Technology (KAUST), Biological and Environmental Sciences and Engineering Division, The BioActives Lab, Thuwal 23955-6900, Kingdom of Saudi Arabia
- Corresponding Author E-mail:
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16
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Cao Y, Benelli G, Germinara GS, Maggi F, Zhang Y, Luo S, Yang H, Li C. Innate positive chemotaxis to paeonal from highly attractive Chinese medicinal herbs in the cigarette beetle, Lasioderma serricorne. Sci Rep 2019; 9:6995. [PMID: 31061503 PMCID: PMC6502792 DOI: 10.1038/s41598-019-43198-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2018] [Accepted: 04/17/2019] [Indexed: 12/02/2022] Open
Abstract
Lasioderma serricorne, also known as cigarette beetle, can exploit a wide variety of stored materials as foods, but it is particularly common on tobacco and herbs. This beetle is a dominant pest species of stored Chinese medicinal materials (CMMs) causing high economic damages, making effective control strategies urgently needed. Behavioural manipulation is an important component of Integrated Pest Management. To the best of our knowledge, plant-borne volatile organic compounds (VOCs) have never been explored to develop lures for managing L. serricorne. In this study, the behavioural responses of L. serricorne to VOCs from four selected CMMs (Euphorbia kansui, Aconitum carmichaelii, Eucommia ulmoides and Pinellia ternata) were studied and their components analysed. Then, the olfactory responses of L. serricorne to the most abundant VOC identified in the preferred CMM, i.e., paeonal, was tested. L. serricorne showed significant differences in its preferences for the VOCs from the four CMMs, i.e, E. kansui > A. carmichaelii > E. ulmoides > P. ternata. From the VOCs of E. kansui, A. carmichaelii, E. ulmoides, and P. ternata, 77, 74, 56, and 81 molecules, were identified, respectively. Paeonal (23.5%), junipene (17.2%), hexanal (17.1%), and benzeneacetonitrile (14.0%) were the most abundant, respectively. Since paeonal dominated the VOC spectrum of the most preferred CMM, this compound was selected for further studies. L. serricorne showed significant positive responses to paeonal tested at various doses, with the most attractive ones being 100 μg and 500 μg. Our findings shed light on the olfactory cues routing the food searching behaviour in the cigarette beetle, providing important information on how L. serricorne targets particular CMMs. The high attractiveness of paeonal at low doses tested here may be exploited further to develop novel monitoring and control tools (e.g., lure-and-kill strategies) against this important stored product pest.
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Affiliation(s)
- Yu Cao
- Guizhou Provincial Key Laboratory for Rare Animal and Economic Insect of the Mountainous Region, Department of Biology and Engineering of Environment, Guiyang University, Guiyang, Guizhou, 550005, P.R. China
| | - Giovanni Benelli
- Department of Agriculture, Food and Environment, University of Pisa, via del Borghetto 80, 56124, Pisa, Italy
| | - Giacinto Salvatore Germinara
- Department of the Sciences of Agriculture, Food and Environment, University of Foggia, Via Napoli 25, Foggia, 71122, Italy
| | - Filippo Maggi
- School of Pharmacy, University of Camerino, Via Sant'Agostino 1, 62032, Camerino, Italy
| | - Yuanjie Zhang
- Guizhou Provincial Key Laboratory for Rare Animal and Economic Insect of the Mountainous Region, Department of Biology and Engineering of Environment, Guiyang University, Guiyang, Guizhou, 550005, P.R. China
| | - Shuangli Luo
- Guizhou Provincial Key Laboratory for Rare Animal and Economic Insect of the Mountainous Region, Department of Biology and Engineering of Environment, Guiyang University, Guiyang, Guizhou, 550005, P.R. China
| | - Hong Yang
- Guizhou Provincial Key Laboratory for Rare Animal and Economic Insect of the Mountainous Region, Department of Biology and Engineering of Environment, Guiyang University, Guiyang, Guizhou, 550005, P.R. China
| | - Can Li
- Guizhou Provincial Key Laboratory for Rare Animal and Economic Insect of the Mountainous Region, Department of Biology and Engineering of Environment, Guiyang University, Guiyang, Guizhou, 550005, P.R. China.
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17
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Yao X, Gao M, Wei Z, Chen M, Shangguan W. Removal of hexanal in cooking fume by combination of storage and plasma-catalytic oxidation on alkali-modified Co-Mn solid solution. Chemosphere 2019; 220:738-747. [PMID: 30611072 DOI: 10.1016/j.chemosphere.2018.12.201] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2018] [Revised: 12/25/2018] [Accepted: 12/30/2018] [Indexed: 06/09/2023]
Abstract
Cooking oil fumes as an important source of volatile organic compounds in metropolitan areas are poisonous to the environment and human health. In this study, the removal of hexanal (a representative of cooking fume) using "storage-plasma catalytic oxidation" at ambient conditions has been investigated. Alkali-modified Co-Mn catalysts were synthesized by coprecipitation method and further characterized by XRD, SEM, N2 adsorption-desorption, H2-TPR, O2-TPD and XPS techniques. It was clearly shown that the Na modification afforded a remarkable enhancement in the hexanal storage capacity, which is ascribed to the formation of surface hydroxyls that resulted in the chemical adsorption. Moreover, the plasma-catalytic oxidation results showed 99.4% hexanal removal and 85.7% CO2 selectivity at a GHSV of 47700 h-1. XPS results revealed that Na modification promoted the formation of more abundant Co3+, Mn3+ cations and surface adsorbed oxygen species, thus facilitated the oxidation process. In-situ FTIR results revealed that Na modification could trigger disproportionation reaction, resulting in the transformation of adsorbed hexanal into alcohol and carboxylic acid thus further speeds up the oxidation rate. This work provides a low-cost, highly efficient and energy-consuming approach for the removal of gaseous cooking fume by storage and plasma catalytic oxidation cycle at room temperature.
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Affiliation(s)
- Xin Yao
- Research Center for Combustion and Environment Technology, Shanghai Jiao Tong University, 800 Dong Chuan Road, Shanghai 200240, PR China
| | - Mengxiang Gao
- Research Center for Combustion and Environment Technology, Shanghai Jiao Tong University, 800 Dong Chuan Road, Shanghai 200240, PR China
| | - Zhidong Wei
- Research Center for Combustion and Environment Technology, Shanghai Jiao Tong University, 800 Dong Chuan Road, Shanghai 200240, PR China
| | - Mingxia Chen
- Research Center for Combustion and Environment Technology, Shanghai Jiao Tong University, 800 Dong Chuan Road, Shanghai 200240, PR China
| | - Wenfeng Shangguan
- Research Center for Combustion and Environment Technology, Shanghai Jiao Tong University, 800 Dong Chuan Road, Shanghai 200240, PR China.
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18
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Wang XL, Li P, Li J, Chen JH, Yang GY, Hu QF, Zhang CM, Li GP. [A new naphthaldehyde derivative from Comastoma pulmonarium and its anti-tobacco mosaic virus (anti-TMV) activity]. Zhongguo Zhong Yao Za Zhi 2018; 43:3884-3886. [PMID: 30453713 DOI: 10.19540/j.cnki.cjcmm.20180807.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 06/14/2018] [Indexed: 06/09/2023]
Abstract
A new naphthaldehyde derivative has been isolated from Comastoma pulmonarium by using various chromatographic techniques, including silica gel, Sephadex LH-20, MCI-gel resin and RP-HPLC. This compounds was determined as 5-methoxy-2-methyl-7-(2-oxopropyl)naphthalene-1-carbaldehyde(1) by NMR, MS, IR and UV spectra. This compound was also evaluated for its anti-tobacco mosaic virus (anti-TMV) activity. The result showed that it showed high anti-TMV activity with inhibition rate of 32.8%. The inhibition rate is close to that of positive control (ningnanmycin).
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Affiliation(s)
- Xiao-Long Wang
- Key Laboratory of Chemistry in Ethnic Medicinal Resource, State Ethnic Affairs Commission and Ministry of Education, Yunnan Minzu University, Kunming 650500, China
- Technology Center, China Tobacco Yunnan industrial Co., Ltd., Kunming 650106, China
| | - Ping Li
- Key Laboratory of Chemistry in Ethnic Medicinal Resource, State Ethnic Affairs Commission and Ministry of Education, Yunnan Minzu University, Kunming 650500, China
- Technology Center, China Tobacco Yunnan industrial Co., Ltd., Kunming 650106, China
| | - Jing Li
- Technology Center, China Tobacco Yunnan industrial Co., Ltd., Kunming 650106, China
| | - Jian-Hua Chen
- Technology Center, China Tobacco Yunnan industrial Co., Ltd., Kunming 650106, China
| | - Guang-Yu Yang
- Technology Center, China Tobacco Yunnan industrial Co., Ltd., Kunming 650106, China
| | - Qiu-Fen Hu
- Key Laboratory of Chemistry in Ethnic Medicinal Resource, State Ethnic Affairs Commission and Ministry of Education, Yunnan Minzu University, Kunming 650500, China
| | - Cheng-Ming Zhang
- Technology Center, China Tobacco Yunnan industrial Co., Ltd., Kunming 650106, China
| | - Gan-Peng Li
- Key Laboratory of Chemistry in Ethnic Medicinal Resource, State Ethnic Affairs Commission and Ministry of Education, Yunnan Minzu University, Kunming 650500, China
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19
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Juhari NH, Petersen MA. Physicochemical Properties and Oxidative Storage Stability of Milled Roselle (Hibiscus sabdariffa L.) Seeds. Molecules 2018; 23:molecules23020385. [PMID: 29439462 PMCID: PMC6017072 DOI: 10.3390/molecules23020385] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/03/2018] [Revised: 02/08/2018] [Accepted: 02/11/2018] [Indexed: 12/04/2022]
Abstract
Milled Roselle (Hibiscus sabdariffa L.) seeds of the UMKL cultivar were analyzed for proximate composition, water and oil absorption capacity, and the influence of storage conditions on storage stability. The storage stability was determined under four types of conditions: light/oxygen (air) (LO), light/nitrogen (LN), darkness/oxygen (air) (DO), and darkness/nitrogen (DN) while monitoring for seven consecutive months. During the storage period, the formation of volatiles was determined using dynamic headspace sampling and Gas Chromatography-Mass Spectrometry (GC-MS) analysis. In total, 85 volatiles were identified, mainly aldehydes, alcohols, ketones, furans, and acids indicating lipid oxidation. It is recommended that milled Roselle seeds should be flushed with nitrogen and stored in darkness. Under these conditions, the seeds can be stored for at least three months without changes in volatile profile. This is important to ensure the good quality of milled Roselle seeds for further commercialization.
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Affiliation(s)
- Nurul Hanisah Juhari
- Department of Food Science, Faculty of Science, University of Copenhagen, Rolighedsvej 26, Frederiksberg C, DK-1958, 1165 København, Denmark.
- Department of Food Service and Management, Faculty of Food Science and Technology, University Putra Malaysia, Serdang 43400, Selangor, Malaysia.
| | - Mikael Agerlin Petersen
- Department of Food Science, Faculty of Science, University of Copenhagen, Rolighedsvej 26, Frederiksberg C, DK-1958, 1165 København, Denmark.
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20
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Chen X, Yu J, Cui H, Xia S, Zhang X, Yang B. Effect of Temperature on Flavor Compounds and Sensory Characteristics of Maillard Reaction Products Derived from Mushroom Hydrolysate. Molecules 2018; 23:molecules23020247. [PMID: 29373560 PMCID: PMC6017167 DOI: 10.3390/molecules23020247] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2018] [Revised: 01/20/2018] [Accepted: 01/25/2018] [Indexed: 12/27/2022] Open
Abstract
Maillard reaction products (MRPs) were prepared from mushroom hydrolysate (MH) by heating with d-xylose and l-cysteine at various temperatures (100 °C-140 °C) for 2 h at a pH of 7.4. The sensory characteristics of MH and MRPs were evaluated by panelists and volatile compounds were analyzed by GC/MS. Additionally, partial least squares regression (PLSR) was performed to analyze the correlation between quantitative sensory characteristics and GC/MS data. GC/MS results revealed that higher reaction temperature resulted in more nitrogen and sulfur containing compounds in MRPs while alcohols, ketones and aldehydes were the major flavor compounds obtained in MH. PLSR results showed that 3-phenylfuran and 2-octylfuran were the compounds responsible for the caramel-like flavor; 1-octen-3-ol, (E)-2-octen-1-ol and geranyl acetone were significantly and positively correlated to mushroom-like flavor, whereas, 2-thiophene-carboxaldehyde, 2,5-thiophenedicarboxaldehyde and 3-methylbutanal positively affected MRPs meat-like attribute. Overall, 125 °C was identified as the optimal temperature for preparing MRPs with abundant volatile compounds and favorable sensory characteristics; the concentration of free amino acids and 5'-GMP, which are associated with the umami taste, in MRPs derived under 125 °C were 3 to 4 times higher than those in MH.
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Affiliation(s)
- Xiao Chen
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi 214122, Jiangsu, China.
- Food Chemistry and Food Development, Department of Biochemistry, University of Turku, FI-20014 Turku, Finland.
| | - Jingyang Yu
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi 214122, Jiangsu, China.
| | - Heping Cui
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi 214122, Jiangsu, China.
| | - Shuqin Xia
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi 214122, Jiangsu, China.
| | - Xiaoming Zhang
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi 214122, Jiangsu, China.
| | - Baoru Yang
- Food Chemistry and Food Development, Department of Biochemistry, University of Turku, FI-20014 Turku, Finland.
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21
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Li Q, Deng AJ, Li L, Wu LQ, Ji M, Zhang HJ, Li ZH, Ma L, Zhang ZH, Chen XG, Qin HL. Azacyclo-indoles and Phenolics from the Flowers of Juglans regia. J Nat Prod 2017; 80:2189-2198. [PMID: 28737396 DOI: 10.1021/acs.jnatprod.6b00887] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Seven new azacyclo-indoles and phenolics and four known alkaloids were isolated from the flowers of Juglans regia. Spectroscopic and chromatographic data revealed that the structures of the new compounds are 5,6,11,12-tetrahydropyrrolo[1',2':1,2]azepino[4,5-b]indole-3-carbaldehyde (1), (±)-5,6,7,11c-tetrahydro-1H-indolizino[7,8-b]indol-3(2H)-one (2), (±)-9-hydroxy-5-oxo-2,3,4,5-tetrahydro-1H-benzo[b]azepine-2-carboxamide (3), 5-(ethoxymethyl)-1-(4-hydroxyphenethyl)-1H-pyrrole-2-carbaldehyde (4), (±)-5,8-dihydroxy-4-(1H-indol-3-yl)-3,4-dihydronaphthalen-1(2H)-one (5), (±)-4-(6-amino-9H-purin-9-yl)-5,8-dihydroxy-3,4-dihydronaphthalen-1(2H)-one (6), and (±)-4-(6-amino-9H-purin-9-yl)-5-hydroxy-3,4-dihydronaphthalen-1(2H)-one (7). The five pairs of enantiomers were resolved, and the absolute configurations of the enantiomers were assigned via electronic circular dichroism data. Compound 1 exhibited significant in vitro growth inhibition against the HCT-116, HepG2, BGC-823, NCI-H1650, and A2780 cancer cell lines, with IC50 values of 2.87, 1.87, 2.28, 2.86, and 0.96 μM, respectively, and low cytotoxicity toward normal IEC-6 cells, with a 79.6% survival rate at a 10 μM concentration.
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Affiliation(s)
- Qian Li
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing 100050, People's Republic of China
| | - An-Jun Deng
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing 100050, People's Republic of China
| | - Li Li
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing 100050, People's Republic of China
| | - Lian-Qiu Wu
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing 100050, People's Republic of China
| | - Ming Ji
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing 100050, People's Republic of China
| | - Hai-Jing Zhang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing 100050, People's Republic of China
| | - Zhi-Hong Li
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing 100050, People's Republic of China
| | - Lin Ma
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing 100050, People's Republic of China
| | - Zhi-Hui Zhang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing 100050, People's Republic of China
| | - Xiao-Guang Chen
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing 100050, People's Republic of China
| | - Hai-Lin Qin
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing 100050, People's Republic of China
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22
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Olennikov DN, Kashchenko NI, Chirikova NK. Meadowsweet Teas as New Functional Beverages: Comparative Analysis of Nutrients, Phytochemicals and Biological Effects of Four Filipendula Species. Molecules 2016; 22:E16. [PMID: 28035976 PMCID: PMC6155584 DOI: 10.3390/molecules22010016] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2016] [Revised: 12/09/2016] [Accepted: 12/21/2016] [Indexed: 11/16/2022] Open
Abstract
In recent years, the increased popularity of functional beverages such as herbal teas and decoctions has led to the search for new sources of raw materials that provide appropriate taste and functionality to consumers. The objective of this study was to investigate the nutritional, phytochemical profiles and bioactivities of possible functional beverages produced from F. ulmaria and its alternative substitutes (F. camtschatica, F. denudata, F. stepposa). The investigated decoctions were analyzed regarding their macronutrient, carbohydrate, organic acid, amino acid and mineral composition. Quantification of the main phenolic compounds in the decoctions of meadowsweet floral teas was performed by a microcolumn RP-HPLC-UV procedure; the highest content was revealed in F. stepposa tea. The investigation of the essential oil of four meadowsweet teas revealed the presence of 28 compounds, including simple phenols, monoterpenes, sesquiterpenes and aliphatic components. The dominance of methyl salicylate and salicylaldehyde was noted in all samples. Studies on the water soluble polysaccharides of Filipendula flowers allowed us to establish their general affiliation to galactans and/or arabinogalactans with an admixture of glucans of the starch type and galacturonans as minor components. The bioactivity data demonstrated a good ability of meadowsweet teas to inhibit amylase, α-glucosidase and AGE formation. Tea samples showed antioxidant properties by the DPPH•, ABTS•+ and Br• free radicals scavenging assays and the carotene bleaching assay, caused by the presence of highly active ellagitannins. The anti-complement activity of the water-soluble polysaccharide fraction of meadowsweet teas indicated their possible immune-modulating properties. Filipendula beverage formulations can be expected to deliver beneficial effects due to their unique nutritional and phytochemical profiles. Potential applications as health-promoting functional products may be suggested.
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Affiliation(s)
- Daniil N Olennikov
- Institute of General and Experimental Biology, Siberian Division, Russian Academy of Science, Sakh'yanovoy Street, 6, Ulan-Ude 670047, Russia.
- Department of Biochemistry and Biotechnology, North-Eastern Federal University, 58 Belinsky Street, Yakutsk 677027, Russia.
| | - Nina I Kashchenko
- Institute of General and Experimental Biology, Siberian Division, Russian Academy of Science, Sakh'yanovoy Street, 6, Ulan-Ude 670047, Russia.
| | - Nadezhda K Chirikova
- Department of Biochemistry and Biotechnology, North-Eastern Federal University, 58 Belinsky Street, Yakutsk 677027, Russia.
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23
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Deng J, Yu HJ, Li YY, Zhang XM, Liu P, Li Q, Jiang WJ. Leaf Volatile Compounds and Associated Gene Expression during Short-Term Nitrogen Deficient Treatments in Cucumis Seedlings. Int J Mol Sci 2016; 17:ijms17111713. [PMID: 27827841 PMCID: PMC5133771 DOI: 10.3390/ijms17111713] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2016] [Revised: 09/27/2016] [Accepted: 10/08/2016] [Indexed: 01/22/2023] Open
Abstract
Nitrogen (N) is an important macronutrient for plant growth and development, but the regulatory mechanism of volatile compounds in response to N deficiency is not well understood, especially in cucumber, which consumes excessive N during growth. In this study, the major volatile compounds from cucumber leaves subjected to N deficiency were analyzed by GC-MS. A total of 24 volatile components were identified including 15 aldehydes, two ketones, two alkenes, and five other volatile compounds in 9930 leaves. Principal component analysis using volatile compounds from cucumber leaves provided good separation between N-sufficient and N-deficient treatments. The main volatiles in cucumber leaves were found to be C6 and C9 aldehydes, especially (E)-2-hexanal and (E,Z)-2,6-nonadienal. (E)-2-hexanal belonged to the C6 aldehyde and was the most abundant compound, whereas (E,Z)-2,6-nonadienal was the chief component of C9 aldehydes. During N-deficient treatment, short-chain volatile content was significantly improved at 5 day, other volatiles displayed significant reduction or no significantly changes in all sampling points. Improvement of short-chain volatiles was confirmed in the six other inbred lines at 5 day after N-deficient treatments. The expression analysis of 12 cucumber LOX genes and two HPL genes revealed that CsLOX19, CsLOX20, and CsLOX22 had common up-regulated expression patterns in response to N-deficient stress in most inbred lines; meanwhile, most sample points of CsHPL1 also had significant up-regulated expression patterns. This research focused on the relationship between volatiles in cucumber and different nitrogen environments to provide valuable insight into the effect of cultivation and management of the quality of cucumber and contributes to further research on volatile metabolism in cucumber.
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Affiliation(s)
- Jie Deng
- Key Laboratory of Horticultural Crops Genetic Improvement (Ministry of Agriculture), Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing 100081, China.
| | - Hong-Jun Yu
- Key Laboratory of Horticultural Crops Genetic Improvement (Ministry of Agriculture), Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing 100081, China.
| | - Yun-Yun Li
- Key Laboratory of Horticultural Crops Genetic Improvement (Ministry of Agriculture), Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing 100081, China.
| | - Xiao-Meng Zhang
- Key Laboratory of Horticultural Crops Genetic Improvement (Ministry of Agriculture), Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing 100081, China.
| | - Peng Liu
- Key Laboratory of Horticultural Crops Genetic Improvement (Ministry of Agriculture), Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing 100081, China.
| | - Qiang Li
- Key Laboratory of Horticultural Crops Genetic Improvement (Ministry of Agriculture), Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing 100081, China.
| | - Wei-Jie Jiang
- Key Laboratory of Horticultural Crops Genetic Improvement (Ministry of Agriculture), Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing 100081, China.
- College of Forestry and Horticulture; Xinjiang Agricultural University, Urumqi 830052, China.
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24
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Ma T, Liu ZT, Zhang YY, Sun ZH, Li YZ, Wen XJ, Chen XY. Electrophysiological and behavioral responses of Diaphania glauculalis males to female sex pheromone. Environ Sci Pollut Res Int 2015; 22:15046-15054. [PMID: 26002369 DOI: 10.1007/s11356-015-4711-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2014] [Accepted: 05/13/2015] [Indexed: 06/04/2023]
Abstract
The aim of this study is to identify the pheromone active component of female moths, Diaphania glauculalis, an important pest of Anthocephalus chinensis in China. The sex pheromone was extracted from sex pheromone gland extracts of virgin female moth of D. glauculalis using n-hexane, and the pheromone gland extracts of females were analyzed using coupled gas chromatography-electroantennogram detection (GC-EAD) and gas chromatography-mass spectrometry (GC-MS). The sex pheromone active components were based on the comparison the retention time and mass spectrum, with suitable synthetic compounds. (E)-11-hexadecenal (E11-16:Ald) and (E,E)-10,12-hexadecadienal (E10E12-16:Ald) were identified as the major sex pheromone components in the females. Their biological activities were evaluated in a series of electroantennogram (EAG) experiments and four-arm olfactometer assays using synthetic compounds. D. glauculalis males could be attracted by any single component, but a mixture of the E11-16:Ald and E10E12-16:Ald in a ratio of 5:5 elicited a substantial response, demonstrating that the binary blend is essential in male attraction. We therefore conclude that the aldehyde compounds, a mixture of E11-16:Ald and E10E12-16:Ald, comprise the sex pheromone components of D. glauculalis, which might be applied for insect field trapping.
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Affiliation(s)
- Tao Ma
- Research Centre for Health Diagnosis and Protection Techniques of Woody Plants, College of Forestry and Landscape Architecture, South China Agricultural University, No. 483, Tianhe District, Guangzhou, China
| | - Zhi Tao Liu
- Research Centre for Health Diagnosis and Protection Techniques of Woody Plants, College of Forestry and Landscape Architecture, South China Agricultural University, No. 483, Tianhe District, Guangzhou, China
| | - Yuan Yuan Zhang
- Research Centre for Health Diagnosis and Protection Techniques of Woody Plants, College of Forestry and Landscape Architecture, South China Agricultural University, No. 483, Tianhe District, Guangzhou, China
| | - Zhao Hui Sun
- Research Centre for Health Diagnosis and Protection Techniques of Woody Plants, College of Forestry and Landscape Architecture, South China Agricultural University, No. 483, Tianhe District, Guangzhou, China
| | - Yi Zhen Li
- Research Centre for Health Diagnosis and Protection Techniques of Woody Plants, College of Forestry and Landscape Architecture, South China Agricultural University, No. 483, Tianhe District, Guangzhou, China
| | - Xiu Jun Wen
- Research Centre for Health Diagnosis and Protection Techniques of Woody Plants, College of Forestry and Landscape Architecture, South China Agricultural University, No. 483, Tianhe District, Guangzhou, China.
| | - Xiao Yang Chen
- Research Centre for Health Diagnosis and Protection Techniques of Woody Plants, College of Forestry and Landscape Architecture, South China Agricultural University, No. 483, Tianhe District, Guangzhou, China
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25
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Li X, Wang J, Zhang X, Chen C. Powdered activated carbon adsorption of two fishy odorants in water: Trans,trans-2,4-heptadienal and trans,trans-2,4-decadienal. J Environ Sci (China) 2015; 32:15-25. [PMID: 26040727 DOI: 10.1016/j.jes.2015.01.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2014] [Revised: 01/13/2015] [Accepted: 01/14/2015] [Indexed: 06/04/2023]
Abstract
Powdered activated carbon (PAC) adsorption of two fishy odorants, trans,trans-2,4-heptadienal (HDE) and trans,trans-2,4-decadienal (DDE), was investigated. Both the pseudo first-order and the pseudo second-order kinetic models well described the kinetics curves, and DDE was more readily removed by PAC. In isotherm tests, both Freundlich and Modified Freundlich isotherms fitted the experimental data well. PAC exhibited a higher adsorption capacity for DDE than for HDE, which could be ascribed to the difference in their hydrophobicity. The calculated thermodynamic parameters (ΔG0, ΔH0, and ΔS0) indicated an exothermic and spontaneous adsorption process. PAC dosage, pH, and natural organic matter (NOM) presence were found to influence the adsorption process. With increasing PAC dosage, the pseudo first-order and pseudo second-order rate constants both increased. The value of pH had little influence on HDE or DDE molecules but altered the surface charge of PAC, and the maximum adsorption capacity occurred at pH9. The presence of NOM, especially the fraction with molecular weight less than 1k Dalton, hindered the adsorption. The study showed that preloaded NOM impaired the adsorption capacity of HDE or DDE more severely than simultaneously fed NOM did.
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Affiliation(s)
- Xin Li
- School of Environment, Tsinghua University, Beijing 100084, China.
| | - Jun Wang
- School of Environment, Tsinghua University, Beijing 100084, China
| | - Xiaojian Zhang
- School of Environment, Tsinghua University, Beijing 100084, China
| | - Chao Chen
- School of Environment, Tsinghua University, Beijing 100084, China.
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26
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Gregorovičová M, Černíková A. Reactions of green lizards (Lacerta viridis) to major repellent compounds secreted by Graphosoma lineatum (Heteroptera: Pentatomidae). ZOOLOGY 2015; 118:176-82. [PMID: 25869384 DOI: 10.1016/j.zool.2015.02.001] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2014] [Revised: 12/07/2014] [Accepted: 02/01/2015] [Indexed: 11/18/2022]
Abstract
The chemical defence of Heteroptera is primarily based on repellent secretions which signal the potential toxicity of the bug to its predators. We tested the aversive reactions of green lizards (Lacerta viridis) towards the major compounds of the defensive secretion of Graphosoma lineatum, specifically: (i) a mixture of three aldehydes: (E)-hex-2-enal, (E)-oct-2-enal, (E)-dec-2-enal; (ii) a mixture of these three aldehydes and tridecane; (iii) oxoaldehyde: (E)-4-oxohex-2-enal; (iv) secretion extracted from metathoracic scent glands of G. lineatum adults and (v) hexane as a non-polar solvent. All chemicals were presented on a palatable food (Tenebrio molitor larvae). The aversive reactions of the green lizards towards the mealworms were evaluated by observing the approach latencies, attack latencies and approach-attack intervals. The green lizards exhibited a strong aversive reaction to the mixture of three aldehydes. Tridecane reduced the aversive reaction to the aldehyde mixture. Oxoaldehyde caused the weakest, but still significant, aversive reaction. The secretion from whole metathoracic scent glands also clearly had an aversive effect on the green lizards. Moreover, when a living specimen of G. lineatum or Pyrrhocoris apterus (another aposematic red-and-black prey) was presented to the green lizards before the trials with the aldehyde mixture, the aversive effect of the mixture was enhanced. In conclusion, the mixture of three aldehydes had the strong aversive effect and could signal the potential toxicity of G. lineatum to the green lizards.
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Affiliation(s)
- Martina Gregorovičová
- Department of Zoology, Faculty of Science, Charles University, Viničná 7, 128 44 Prague, Czech Republic.
| | - Alena Černíková
- Institute of Applied Mathematics and Information Technologies, Faculty of Science, Charles University, Albertov 6, 128 43 Prague, Czech Republic
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27
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Lettieri A, Esposito R, Ianora A, Spagnuolo A. Ciona intestinalis as a marine model system to study some key developmental genes targeted by the diatom-derived aldehyde decadienal. Mar Drugs 2015; 13:1451-65. [PMID: 25789602 PMCID: PMC4377993 DOI: 10.3390/md13031451] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2015] [Revised: 03/04/2015] [Accepted: 03/05/2015] [Indexed: 01/09/2023] Open
Abstract
The anti-proliferative effects of diatoms, described for the first time in copepods, have also been demonstrated in benthic invertebrates such as polychaetes, sea urchins and tunicates. In these organisms PUAs (polyunsaturated aldehydes) induce the disruption of gametogenesis, gamete functionality, fertilization, embryonic mitosis, and larval fitness and competence. These inhibitory effects are due to the PUAs, produced by diatoms in response to physical damage as occurs during copepod grazing. The cell targets of these compounds remain largely unknown. Here we identify some of the genes targeted by the diatom PUA 2-trans-4-trans-decadienal (DD) using the tunicate Ciona intestinalis. The tools, techniques and genomic resources available for Ciona, as well as the suitability of Ciona embryos for medium-to high-throughput strategies, are key to their employment as model organisms in different fields, including the investigation of toxic agents that could interfere with developmental processes. We demonstrate that DD can induce developmental aberrations in Ciona larvae in a dose-dependent manner. Moreover, through a preliminary analysis, DD is shown to affect the expression level of genes involved in stress response and developmental processes.
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Affiliation(s)
- Anna Lettieri
- Stazione Zoologica Anton Dohrn, Villa Comunale, 80121 NAPOLI, Italy.
| | - Rosaria Esposito
- Stazione Zoologica Anton Dohrn, Villa Comunale, 80121 NAPOLI, Italy.
| | - Adrianna Ianora
- Stazione Zoologica Anton Dohrn, Villa Comunale, 80121 NAPOLI, Italy.
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28
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Batubara I, Suparto IH, Sa'diah S, Matsuoka R, Mitsunaga T. Effects of inhaled citronella oil and related compounds on rat body weight and brown adipose tissue sympathetic nerve. Nutrients 2015; 7:1859-70. [PMID: 25774603 PMCID: PMC4377886 DOI: 10.3390/nu7031859] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2014] [Revised: 02/23/2015] [Accepted: 03/03/2015] [Indexed: 11/24/2022] Open
Abstract
Citronella oil is one of the most famous Indonesian essential oils, having a distinctive aroma. As with other essential oils, it is crucial to explore the effects of inhalation of this oil. Therefore, the aim of this research was to elucidate the effects of inhalation of citronella oil and its components isolated from Cymbopogon nardus L. (Poaceae), Indonesian local name: “Sereh Wangi” on the body weight, blood lipid profile, and liver function of rats, as well as on the sympathetic nerve activity and temperature of brown adipose tissue. Sprague-Dawley male adult rats fed with high fat diet (HFD) were made to inhale citronella oil, R-(+)-citronellal, and β-citronellol for five weeks, and the observations were compared to those of HFD rats that were not subjected to inhalation treatment. The results showed that inhalation of β-citronellol decreased feed consumption. As a consequence, the percentage of weight gain decreased compared with that in control group and the blood cholesterol level in the β-citronellol group was significantly lowered. Concentration of liver function enzymes were not significantly different among the groups. In conclusion, inhalation of citronella oil, specifically β-citronellol, decreased body weight by decreasing appetite, without any marked changes in liver enzyme concentrations.
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Affiliation(s)
- Irmanida Batubara
- Biopharmaca Research Center, Bogor Agricultural University, Jl. Taman Kencana No 3, Bogor 16128, Indonesia.
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Bogor Agricultural University, Darmaga Campus, Bogor 16680, Indonesia.
| | - Irma H Suparto
- Biopharmaca Research Center, Bogor Agricultural University, Jl. Taman Kencana No 3, Bogor 16128, Indonesia.
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Bogor Agricultural University, Darmaga Campus, Bogor 16680, Indonesia.
- Primate Research Center, Bogor Agricultural University, Jl. Lodaya 2 No 5, Bogor 16151, Indonesia.
| | - Siti Sa'diah
- Biopharmaca Research Center, Bogor Agricultural University, Jl. Taman Kencana No 3, Bogor 16128, Indonesia.
- Department of Anatomy, Physiology and Pharmacology, Faculty of Veterinary Medicine, Bogor Agricultural University, Darmaga Campus, Bogor 16680, Indonesia.
| | - Ryunosuke Matsuoka
- Faculty of Applied Biological Science, Gifu University, 1-1 Yanagido, Gifu 501-1193, Japan.
| | - Tohru Mitsunaga
- Faculty of Applied Biological Science, Gifu University, 1-1 Yanagido, Gifu 501-1193, Japan.
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29
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Han L, Gao C, Jiang Y, Guan P, Liu J, Li L, Xu L, Huang X. Jiangrines A-F and jiangolide from an actinobacterium, Jiangella gansuensis. J Nat Prod 2014; 77:2605-2610. [PMID: 25412141 DOI: 10.1021/np500402a] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Seven new compounds, including five pyrrol-2-aldehyde derivatives, jiangrines A-E (1-5), one indolizine derivative, jiangrine F (7), and one glycolipid, jiangolide (8), along with a known compound, pyrrolezanthine (6), were isolated from the fermentation broth of Jiangella gansuensis, an actinobacterium assigned to a novel family, Jiangellaceae, and a novel order, Jiangellales. The structures were elucidated by detailed spectroscopic analysis and through chemical methods. Compounds 1, 2, 3/4, 5, 6, and 8 demonstrated inhibitory effects on lipopolysaccharide-induced NO production in RAW 264.7 macrophage cells, with IC50 values of 97.8, 60.7, 30.1, 54.9, 58.8, and 61.4 μM, respectively.
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Affiliation(s)
- Li Han
- Institute of Microbial Pharmaceuticals, College of Life and Health Sciences, Northeastern University , Shenyang 110819, People's Republic of China
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Donega MA, Mello SC, Moraes RM, Jain SK, Tekwani BL, Cantrell CL. Pharmacological activities of cilantro's aliphatic aldehydes against Leishmania donovani. Planta Med 2014; 80:1706-1711. [PMID: 25340465 DOI: 10.1055/s-0034-1383183] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Leishmaniasis is a chronic infectious disease caused by different Leishmania species. Global occurrences of this disease are primarily limited to tropical and subtropical regions. Treatments are available; however, patients complain of side effects. Different species of plants have been screened as a potential source of new drugs against leishmaniasis. In this study, we investigated the antileishmanial activity of cilantro (Coriandrum sativum) essential oil and its main components: (E)-2-undecenal, (E)-2-decenal, (E)-2-dodecenal, decanal, dodecanal, and tetradecanal. The essential oil of C. sativum leaves inhibits growth of Leishmani donovani promastigotes in culture with an IC50 of 26.58 ± 6.11 µg/mL. The aliphatic aldehydes (E)-2-decenal (7.85 ± 0.28 µg/mL), (E)-2-undecenal (2.81 ± 0.21 µg/mL), and (E)-2-dodecenal (4.35 ± 0.15 µg/mL), all isolated from C. sativum essential oil, are effective inhibitors of in vitro cultures of L. donovani promastigotes. Aldehydes (E)-2-decenal, (E)-2-undecenal, and (E)-2-dodecenal were also evaluated against axenic amastigotes and IC50 values were determined to be 2.47 ± 0.25 µg/mL, 1.25 ± 0.11 µg/mL, and 4.78 ± 1.12 µg/mL, respectively. (E)-2-Undecenal and (E)-2-dodecenal demonstrated IC50 values of 5.65 ± 0.19 µg/mL and 9.60 ± 0.89 µg/mL, respectively, against macrophage amastigotes. These cilantro compounds showed no cytotoxicity against THP-1 macrophages.
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Affiliation(s)
- Mateus A Donega
- Escola Superior de Agricultura Luiz de Queiroz, Departamento de Produção Vegetal, Universidade de São Paulo, Piracicaba, SP, Brazil
| | - Simone C Mello
- Escola Superior de Agricultura Luiz de Queiroz, Departamento de Produção Vegetal, Universidade de São Paulo, Piracicaba, SP, Brazil
| | - Rita M Moraes
- National Center for Natural Products Research, Research Institute of Pharmaceutical Sciences and Department of BioMolecular Sciences, School of Pharmacy, University of Mississippi, University, MS, USA
| | - Surendra K Jain
- National Center for Natural Products Research, Research Institute of Pharmaceutical Sciences and Department of BioMolecular Sciences, School of Pharmacy, University of Mississippi, University, MS, USA
| | - Babu L Tekwani
- National Center for Natural Products Research, Research Institute of Pharmaceutical Sciences and Department of BioMolecular Sciences, School of Pharmacy, University of Mississippi, University, MS, USA
| | - Charles L Cantrell
- USDA-ARS, Natural Products Utilization Research Unit, University, MS, USA
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Scotece M, Conde J, Abella V, Lopez V, Pino J, Lago F, Smith AB, Gómez-Reino JJ, Gualillo O. New drugs from ancient natural foods. Oleocanthal, the natural occurring spicy compound of olive oil: a brief history. Drug Discov Today 2014; 20:406-10. [PMID: 25448758 DOI: 10.1016/j.drudis.2014.10.017] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2014] [Revised: 10/08/2014] [Accepted: 10/30/2014] [Indexed: 11/19/2022]
Abstract
Extra-virgin olive oil (EVOO), a principal component of the Mediterranean diet (Med diet), is one of the most ancient known foods and has long been associated with health benefits. Many phenolic compounds extracted from Olea europea L. have attracted attention since their discovery. Among these phenolic constituents, oleocanthal has recently emerged as a potential therapeutic molecule for different diseases, showing relevant pharmacological properties in various pathogenic processes, including inflammation, cancers and neurodegenerative diseases. Here, we discuss and summarize the most recent pharmacological evidence for the medical relevance of oleocanthal, focusing our attention on its anti-inflammatory and chemotherapeutic roles.
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Affiliation(s)
- Morena Scotece
- Servizo Galego de Saude, Instituto de Investigación Sanitaria de Santiago, Neuroendocrine Interactions in Rheumatology and Inflammatory Diseases Department, Research Laboratory 9, Santiago University Clinical Hospital, Santiago de Compostela, Spain
| | - Javier Conde
- Servizo Galego de Saude, Instituto de Investigación Sanitaria de Santiago, Neuroendocrine Interactions in Rheumatology and Inflammatory Diseases Department, Research Laboratory 9, Santiago University Clinical Hospital, Santiago de Compostela, Spain
| | - Vanessa Abella
- Servizo Galego de Saude, Instituto de Investigación Sanitaria de Santiago, Neuroendocrine Interactions in Rheumatology and Inflammatory Diseases Department, Research Laboratory 9, Santiago University Clinical Hospital, Santiago de Compostela, Spain; Department of Molecular and Cellular Biology, University of A Coruña, A Coruña, Spain
| | - Veronica Lopez
- Servizo Galego de Saude, Instituto de Investigación Sanitaria de Santiago, Neuroendocrine Interactions in Rheumatology and Inflammatory Diseases Department, Research Laboratory 9, Santiago University Clinical Hospital, Santiago de Compostela, Spain
| | - Jesús Pino
- Servizo Galego de Saude, Division of Orthopaedics Surgery and Traumatology, Santiago University Clinical Hospital, Santiago de Compostela, Spain
| | - Francisca Lago
- Servizo Galego de Saude, Instituto de Investigación Sanitaria de Santiago, Laboratory of Molecular and Cellular Cardiology, Research Laboratory 7, Santiago University Clinical Hospital, Santiago de Compostela, Spain
| | - Amos B Smith
- Department of Chemistry, University of Pennsylvania, Philadelphia, PA, USA; Monell Chemical Senses Center, Philadelphia, PA, USA
| | - Juan J Gómez-Reino
- Department of Medicine, University of Santiago de Compostela, Santiago de Compostela, Spain; Servizo Galego de Saude, Instituto de Investigación Sanitaria de Santiago, Division of Rheumatology, Santiago University Clinical Hospital, Santiago de Compostela, Spain
| | - Oreste Gualillo
- Servizo Galego de Saude, Instituto de Investigación Sanitaria de Santiago, Neuroendocrine Interactions in Rheumatology and Inflammatory Diseases Department, Research Laboratory 9, Santiago University Clinical Hospital, Santiago de Compostela, Spain.
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Assadi AA, Bouzaza A, Wolbert D, Petit P. Isovaleraldehyde elimination by UV/TiO2 photocatalysis: comparative study of the process at different reactors configurations and scales. Environ Sci Pollut Res Int 2014; 21:11178-11188. [PMID: 24573462 DOI: 10.1007/s11356-014-2603-7] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2013] [Accepted: 01/26/2014] [Indexed: 06/03/2023]
Abstract
A proposal for scaling-up the photocatalytic reactors is described and applied to the coated catalytic walls with a thin layer of titanium dioxide under the near ultraviolet (UV) irradiation. In this context, the photocatalytic degradation of isovaleraldehyde in gas phase is studied. In fact, the removal capacity is compared at different continuous reactors: a photocatalytic cylindrical reactor, planar reactor, and pilot unit. Results show that laboratory results can be useful for reactor design and scale-up. The flowrate increases lead to the removal capacity increases also. For example, with pilot unit, when flowrate extends four times, the degradation rate varies from 0.14 to 0.38 g h(-1) mcat (-2). The influence of UV intensity is also studied. When this parameter increases, both degradation rate and overall mineralization are enhanced. Moreover, the effects of inlet concentration, flowrate, geometries, and size of reactors on the removal capacity are also studied.
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Affiliation(s)
- Aymen Amine Assadi
- Laboratoire Sciences Chimiques de Rennes-équipe Chimie et Ingénierie des Procédés, UMR 6226 CNRS, ENSCR-11, allée de Beaulieu, 508307-35708, Rennes, France
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Sadgrove NJ, Jones GL, Greatrex BW. Isolation and characterisation of (-)-genifuranal: the principal antimicrobial component in traditional smoking applications of Eremophila longifolia (Scrophulariaceae) by Australian aboriginal peoples. J Ethnopharmacol 2014; 154:758-66. [PMID: 24837304 DOI: 10.1016/j.jep.2014.05.003] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/18/2014] [Revised: 04/30/2014] [Accepted: 05/02/2014] [Indexed: 05/04/2023]
Abstract
ETHNOPHARMACOLOGICAL SIGNIFICANCE Eremophila longifolia is considered by some Australian Aboriginal tribal groups to be among the most significant of the medicinal plants in contemporary and traditional use. Usage modalities traditionally involved lipophilic extraction into animal fats and most importantly, ceremonial or medicinal smoking applications, involving the fumigation of mothers and infants following childbirth or boys following circumcision. An attempt was made to replicate the smoking modalities used by Australian Aboriginal people in the laboratory to identify bioactive compounds. MATERIALS AND METHODS Two methods were used to produce smoke extracts; smoke was channelled through a condenser then bubbled into solvent, or bubbled directly into H2O then partitioned into chloroform followed by butanol. Extracts were used, firstly for antimicrobial screening using micro-titre plate broth dilution to produce minimum inhibitory concentrations (MIC), and secondly for chemical analysis. Structure elucidation of an abundant compound isolated from the smoke extract was performed using 2D-NMR and derivatisation. RESULTS Significant antimicrobial activity (<1.0 mg/ml) was produced using the smoke extracts against the Gram-positive species Staphylococcus aureus, Bacillus subtilis and the yeast Candida albicans. A major component of the smoke with strong antimicrobial activity (0.13-0.5 mg/ml) was isolated which we have named (-)-genifuranal. Structure elucidation using 2D-NMR and derivatisation demonstrated genifuranal to be 5,6-dihydro-4H-cyclopenta[c]furan-4-ylacetaldehyde. Genifuranal is not observed in the leaves before heating, but is produced in the smoking or heating process and is thought to derive from hydrolysis and rearrangement of geniposidic acid or a related glycoside. Only geographically specific specimens of Eremophila longifolia produced (-)-genifuranal, which strongly supports previous hypothesised geographical variation in traditional usage, reflective of phytochemical variation. CONCLUSION It would appear that genifuranal is the medicinal principal involved in traditional use of Eremophila longifolia when smoking modalities are used. Topical treatments traditionally produced by lipophilic extraction into animal fats are not likely to have had genifuranal present, as the mechanism for its formation requires heat.
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Affiliation(s)
- Nicholas John Sadgrove
- Pharmaceuticals and Nutraceuticals Group (School of Science and Technology), University of New England, Armidale 2351, NSW, Australia.
| | - Graham Lloyd Jones
- Pharmaceuticals and Nutraceuticals Group (School of Science and Technology), University of New England, Armidale 2351, NSW, Australia
| | - Ben William Greatrex
- Pharmaceuticals and Nutraceuticals Group (School of Science and Technology), University of New England, Armidale 2351, NSW, Australia
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Platikanov S, Nikolov S, Pavlova D, Evstatieva L, Popov S. Volatiles from Four Astragalus Species: Phenological Changes and their Chemotaxonomical Application. ACTA ACUST UNITED AC 2014; 60:591-9. [PMID: 16163835 DOI: 10.1515/znc-2005-7-814] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
This paper shows the changes of the volatile compounds from four Astragalus species at three phenological stages: leaf development, flowering and fructification, which might be connected with the plant defense. After GC/MS analyses of Astragalus glycyphyllos L., A. hamosus L., A. cicer L. and A. spruneri Boiss., different groups of volatile compounds were found: hydrocarbons, alcohols, aldehydes and ketones, esters, terpenes, chlorinated compounds, etc. Identified volatiles were used for a cluster analysis in order to make chemotaxonomic conclusions for these evolutionary different species.
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Affiliation(s)
- Stefan Platikanov
- Institute of Botany, Bulgarian Academy of Sciences, 23 Akad. G. Bonchev Str., 1113 Sofia, Bulgaria.
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Varrella S, Romano G, Ianora A, Bentley MG, Ruocco N, Costantini M. Molecular response to toxic diatom-derived aldehydes in the sea urchin Paracentrotus lividus. Mar Drugs 2014; 12:2089-113. [PMID: 24714125 PMCID: PMC4012444 DOI: 10.3390/md12042089] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2014] [Revised: 03/21/2014] [Accepted: 03/25/2014] [Indexed: 12/24/2022] Open
Abstract
Diatoms are dominant photosynthetic organisms in the world’s oceans and represent a major food source for zooplankton and benthic filter-feeders. However, their beneficial role in sustaining marine food webs has been challenged after the discovery that they produce secondary metabolites, such as polyunsaturated aldehydes (PUAs), which negatively affect the reproductive success of many invertebrates. Here, we report the effects of two common diatom PUAs, heptadienal and octadienal, which have never been tested before at the molecular level, using the sea urchin, Paracentrotus lividus, as a model organism. We show that both PUAs are able to induce teratogenesis (i.e., malformations), as already reported for decadienal, the better-studied PUA of this group. Moreover, post-recovery experiments show that embryos can recover after treatment with all three PUAs, indicating that negative effects depend both on PUA concentrations and the exposure time of the embryos to these metabolites. We also identify the time range during which PUAs exert the greatest effect on sea urchin embryogenesis. Finally, we report the expression levels of thirty one genes (having a key role in a broad range of functional responses, such as stress, development, differentiation, skeletogenesis and detoxification processes) in order to identify the common targets affected by PUAs and their correlation with morphological abnormalities. This study opens new perspectives for understanding how marine organisms afford protection from environmental toxicants through an integrated network of genes.
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Affiliation(s)
- Stefano Varrella
- Stazione Zoologica Anton Dohrn, Villa Comunale, Naples 80121, Italy.
| | - Giovanna Romano
- Stazione Zoologica Anton Dohrn, Villa Comunale, Naples 80121, Italy.
| | - Adrianna Ianora
- Stazione Zoologica Anton Dohrn, Villa Comunale, Naples 80121, Italy.
| | - Matt G Bentley
- Dove Marine Laboratory, School of Marine Science and Technology, Newcastle University, Newcastle upon Tyne, UK.
| | - Nadia Ruocco
- Stazione Zoologica Anton Dohrn, Villa Comunale, Naples 80121, Italy.
| | - Maria Costantini
- Stazione Zoologica Anton Dohrn, Villa Comunale, Naples 80121, Italy.
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Lin M, Liu X, Xu Q, Song H, Li P, Yao J. Aroma-active components of yeast extract pastes with a basic and characteristic meaty flavour. J Sci Food Agric 2014; 94:882-889. [PMID: 23900959 DOI: 10.1002/jsfa.6330] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2013] [Revised: 07/19/2013] [Accepted: 07/30/2013] [Indexed: 06/02/2023]
Abstract
BACKGROUND Aroma-active compounds, together with sugars, amino acids, fat and nucleotides, are the main chemical species determining the characteristic aroma and taste of food. For selecting yeast extract pastes products with a less undesirable aroma, the aroma-active compounds that affect the overall consumer acceptance of yeast extract pastes products were analysed in this work. RESULTS The aroma-active compounds of yeast extract pastes were extracted by using dynamic headspace extraction or simultaneous distillation extraction, and were detected by gas chromatography-olfactrometry-mass spectrometry in conjunction with dynamic headspace dilution analysis or aroma extract dilution analysis. Sensory results revealed that a meaty, roasted aroma was the dominant of overall aroma. The important aroma-active compounds referred in this work were mainly aldehydes, acids, ketones, furan derivatives, pyrazines, and sulfur-containing compounds. Of these, six volatile compounds such as 3-methylbutanal, 2,3-butanedione, 2,3,5-trimethyl-pyrazin, acetic acid ethenyl ester, 2-acetyl-1-pyrroline and (E,E)-2,4-decadienal had never been reported before as key aroma-active compounds of yeast extract pastes. CONCLUSIONS The key aroma-active compounds were identified in basic and characteristic meaty flavour yeast extract pastes, and their characterisation was determined.
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Affiliation(s)
- Meili Lin
- Laboratory of Molecular Sensory Science, Beijing Technology and Business University, 11, Fucheng Road, Beijing, 100048, China
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Vougogiannopoulou K, Lemus C, Halabalaki M, Pergola C, Werz O, Smith AB, Michel S, Skaltsounis L, Deguin B. One-step semisynthesis of oleacein and the determination as a 5-lipoxygenase inhibitor. J Nat Prod 2014; 77:441-445. [PMID: 24568174 DOI: 10.1021/np401010x] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
The dialdehydes oleacein (2) and oleocanthal (4) are closely related to oleuropein (1) and ligstroside (3), the two latter compounds being abundant iridoids of Olea europaea. By exploiting oleuropein isolated from the plant leaf extract, an efficient procedure has been developed for a one-step semisynthesis of oleacein under Krapcho decarbomethoxylation conditions. Highlighted is the fact that 5-lipoxygenase is a direct target for oleacein with an inhibitory potential (IC50: 2 μM) more potent than oleocanthal (4) and oleuropein (1). This enzyme catalyzes the initial steps in the biosynthesis of pro-inflammatory leukotrienes. Taken together, the methodology presented here offers an alternative solution to isolation or total synthesis for the procurement of oleacein, thus facilitating the further development as a potential anti-inflammatory agent.
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Affiliation(s)
- Konstantina Vougogiannopoulou
- Division of Pharmacognosy and Natural Products Chemistry, Department of Pharmacy, University of Athens , Panepistimiopolis, GR-15771, Athens, Greece
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Wongsariya K, Phanthong P, Bunyapraphatsara N, Srisukh V, Chomnawang MT. Synergistic interaction and mode of action of Citrus hystrix essential oil against bacteria causing periodontal diseases. Pharm Biol 2014; 52:273-280. [PMID: 24102651 DOI: 10.3109/13880209.2013.833948] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
CONTEXT Citrus hystrix de Candolle (Rutaceae), an edible plant regularly used as a food ingredient, possesses antibacterial activity, but there is no current data on the activity against bacteria causing periodontal diseases. OBJECTIVE C. hystrix essential oil from leaves and peel were investigated for antibiofilm formation and mode of action against bacteria causing periodontal diseases. MATERIALS AND METHODS In vitro antibacterial and antibiofilm formation activities were determined by broth microdilution and time kill assay. Mode of action of essential oil was observed by SEM and the active component was identified by bioautography and GC/MS. RESULTS AND DISCUSSION C. hystrix leaves oil exhibited antibacterial activity at the MICs of 1.06 mg/mL for P. gingivalis and S. mutans and 2.12 mg/mL for S. sanguinis. Leaf oil at 4.25 mg/mL showed antibiofilm formation activity with 99% inhibition. The lethal effects on P. gingivalis were observed within 2 and 4 h after treated with 4 × MIC and 2 × MIC, respectively. S. sanguinis and S. mutans were completely killed within 4 and 8 h after exposed to 4 × MIC and 2 × MIC of oil. MICs of tested strains showed 4 times reduction suggesting synergistic interaction of oil and chlorhexidine. Bacterial outer membrane was disrupted after treatment with leaves oil. Additionally, citronellal was identified as the major active compound of C. hystrix oil. CONCLUSIONS C. hystrix leaf oil could be used as a natural active compound or in combination with chlorhexidine in mouthwash preparations to prevent the growth of bacteria associated with periodontal diseases and biofilm formation.
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Zhu H, Li X, Shoemaker CF, Wang SC. Ultrahigh performance liquid chromatography analysis of volatile carbonyl compounds in virgin olive oils. J Agric Food Chem 2013; 61:12253-12259. [PMID: 24279346 DOI: 10.1021/jf404368m] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
The enzymatic and chemical oxidation reaction in olive oil produces many volatile carbonyl compounds that contribute to the complex flavor of olive oil. A novel ultrahigh performance liquid chromatography (UHPLC) method with dynamic headspace sampling and 2,4-dinitrophenylhydrazine (DNPH) derivatization were established to determine the volatile carbonyls in virgin olive oil. Quantification of nine characteristic carbonyls (acetone, hexanal, E-2-hexenal, octanal, E-2-octenal, nonanal, E-2-nonenal, E,E-2,4-nonadienal, and E,E-2,4-decadienal) was achieved using cyclopentanal as an internal standard. This method provides comparable linearity (R(2) = 0.9917-1.0000) and repeatability (less than 7.6% relative standard deviations) with solid phase microextraction gas chromatography (SPME-GC). The relative standard deviations (%RSD) of all applied carbonyl standards were lower than 7.6%. The limits of detection (LOD) and quantification (LOQ) were in the ranges of 1.6-150.1 and 4.8-906.1 μg/kg. The recoveries obtained for olive oil samples were in the range of 81.0-115.3%. To show the potential of this method on the quantification of other volatile carbonyls that were not included in this study, GC-electron ionization mass spectrometry (GC-EI/MS) was employed to identify the derivatized carbonyls (carbonyl (2,4-DNPH) hydrazones) while peak assignments were made on the basis of elution sequences and peak areas. This method provided feasibility of using LC to determine volatile carbonyls in oil matrices, which can be applied to exam the degree of lipid oxidation and evaluate the sensory properties of VOO and other edible oils.
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Affiliation(s)
- Hanjiang Zhu
- Department of Food Science and Technology, University of California-Davis , Davis, California 95616, United States
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Chen SD, Li T, Gao H, Zhu QC, Lu CJ, Wu HL, Peng T, Yao XS. Anti HSV-1 flavonoid derivatives tethered with houttuynin from Houttuynia cordata. Planta Med 2013; 79:1742-1748. [PMID: 24288290 DOI: 10.1055/s-0033-1351051] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
This paper reports the phytochemical investigation of the 50% aq. EtOH extract of Houttuynia cordata, an effective TCM and functional food in China, which led to the isolation of 17 flavonoids including four new ones. The four new compounds were flavonoid derivatives tethered with houttuynin (3-oxododecanal). Each of the new compounds was obtained as a pair of inseparable diasteriomeric epimers due to the chiral carbon of hemiketal at C-3″. This phenomenon is rooted in the ring-chain tautomerism of the hemiketal functional group in solution, which was proved by dynamic NMR experiments. The new compounds 1-4 displayed inhibitory activities against herpes simplex virus 1, with respective IC50 values of 38.46, 14.10, 62.00 and 70.76 µM, which was associated with the medicinal functions of H. cordata.
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Affiliation(s)
- Shao-Dan Chen
- Institute of Traditional Chinese Medicine & Natural Products, Jinan University, Guangzhou, People's Republic of China
| | - Ting Li
- State Key Laboratory for Respiratory Disease, Laboratory of Viral Immunology, Guangzhou Institute of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, People's Republic of China
| | - Hao Gao
- Institute of Traditional Chinese Medicine & Natural Products, Jinan University, Guangzhou, People's Republic of China
| | - Qin-Chang Zhu
- State Key Laboratory for Respiratory Disease, Laboratory of Viral Immunology, Guangzhou Institute of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, People's Republic of China
| | - Chuan-Jian Lu
- The second clinical college of Guangzhou university of Chinese medicine, Guangzhou, People's Republic of China
| | - Hong-Ling Wu
- State Key Laboratory for Respiratory Disease, Laboratory of Viral Immunology, Guangzhou Institute of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, People's Republic of China
| | - Tao Peng
- State Key Laboratory for Respiratory Disease, Laboratory of Viral Immunology, Guangzhou Institute of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, People's Republic of China
| | - Xin-Sheng Yao
- Institute of Traditional Chinese Medicine & Natural Products, Jinan University, Guangzhou, People's Republic of China
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Azam M, Song M, Fan F, Zhang B, Xu Y, Xu C, Chen K. Comparative analysis of flower volatiles from nine citrus at three blooming stages. Int J Mol Sci 2013; 14:22346-67. [PMID: 24232454 PMCID: PMC3856067 DOI: 10.3390/ijms141122346] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2013] [Revised: 10/31/2013] [Accepted: 11/01/2013] [Indexed: 11/24/2022] Open
Abstract
Volatiles from flowers at three blooming stages of nine citrus cultivars were analyzed by headspace-solid phase microextraction (HS-SPME)-GC-MS. Up to 110 volatiles were detected, with 42 tentatively identified from citrus flowers for the first time. Highest amounts of volatiles were present in fully opened flowers of most citrus, except for pomelos. All cultivars were characterized by a high percentage of either oxygenated monoterpenes or monoterpene hydrocarbons, and the presence of a high percentage of nitrogen containing compounds was also observed. Flower volatiles varied qualitatively and quantitatively among citrus types during blooming. Limonene was the most abundant flower volatile only in citrons; α-citral and β-citral ranked 2nd and 3rd only for Bergamot, and unopened flowers of Ponkan had a higher amount of linalool and β-pinene while much lower amount of γ-terpinene and p-cymene than Satsuma. Taking the average of all cultivars, linalool and limonene were the top two volatiles for all blooming stages; β-pinene ranked 3rd in unopened flowers, while indole ranked 3rd for half opened and fully opened flower volatiles. As flowers bloomed, methyl anthranilate increased while 2-hexenal and p-cymene decreased. In some cases, a volatile could be high in both unopened and fully opened flowers but low in half opened ones. Through multivariate analysis, the nine citrus cultivars were clustered into three groups, consistent with the three true citrus types. Furthermore, an influence of blooming stages on clustering was observed, especially with hybrids Satsuma and Huyou. Altogether, it was suggested that flower volatiles can be suitable markers for revealing the genetic relationships between citrus cultivars but the same blooming stage needs to be strictly controlled.
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Affiliation(s)
- Muhammad Azam
- Laboratory of Fruit Quality Biology/The State Agriculture Ministry Laboratory of Horticultural Plant Growth, Development and Quality Improvement, Zhejiang University, Zijingang Campus, Hangzhou 310058, China.
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Ferraces-Casais P, Lage-Yusty MA, Rodríguez-Bernaldo de Quirós A, López-Hernández J. Rapid identification of volatile compounds in fresh seaweed. Talanta 2013; 115:798-800. [PMID: 24054664 DOI: 10.1016/j.talanta.2013.06.049] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2013] [Revised: 06/20/2013] [Accepted: 06/25/2013] [Indexed: 11/29/2022]
Abstract
Volatile component profiles of fresh seaweed Laminaria spp and Undaria pinnatífida were analyzed using dynamic headspace for volatile profile evaluation, which allows the direct analysis of small quantities of sample without previous treatment and have been identified by GC-MS. Alcohols were the most important class of volatile compounds identified in Wakame and Kombu (25 and 29% respectively); nine alcohols were identified. The hydrocarbons group constitute the second most important family of volatiles, in both samples entire similar % area total 13-14%, being the butane the most abundant hydrocarbon. Aldehydes and halogenated compounds are higher in Laminaria spp (10-9% total area), whereas Undaria pinnatifida presents 4-0.23% respectively.
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Affiliation(s)
- Patricia Ferraces-Casais
- Analytical Chemistry, Nutrition and Bromatology Department, Pharmacy Faculty, Campus Vida, University of Santiago de Compostela, 15782 Santiago de Compostela, La Coruña, Spain
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Abstract
A series of aminopropyl-functionalized silicas containing of primary, secondary, or tertiary amines is fabricated via silane-grafting on mesoporous SBA-15 silica and the utility of each material in the adsorption of volatile aldehydes from air is systematically assessed. A particular emphasis is placed on low-molecular-weight aldehydes such as formaldehyde and acetaldehyde, which are highly problematic volatile organic compound (VOC) pollutants. The adsorption tests demonstrate that the aminosilica materials with primary amines most effectively adsorbed formaldehyde with an adsorption capacity of 1.4 mmolHCHO g(-1), whereas the aminosilica containing secondary amines showed lower adsorption capacity (0.80 mmolHCHO g(-1)) and the aminosilica containing tertiary amines adsorbed a negligible amount of formaldehyde. The primary amine containing silica also successfully abated higher aldehyde VOC pollutants, including acetaldehyde, hexanal, and benzaldehyde, by effectively adsorbing them. The adsorption mechanism is investigated by (13)C CP MAS solid-state NMR and FT-Raman spectroscopy, and it is demonstrated that the aldehydes are chemically attached to the surface of aminosilica in the form of imines and hemiaminals. The high aldehyde adsorption capacities of the primary aminosilicas in this study demonstrate the utility of amine-functionalized silica materials for reduction of gaseous aldehydes.
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Affiliation(s)
- Akihiro Nomura
- School of Chemical & Biomolecular Engineering, Georgia Institute of Technology, 311 Ferst Drive, Atlanta, Georgia 30332-0100, USA
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Estrada JM, Hernández S, Muñoz R, Revah S. A comparative study of fungal and bacterial biofiltration treating a VOC mixture. J Hazard Mater 2013; 250-251:190-197. [PMID: 23454457 DOI: 10.1016/j.jhazmat.2013.01.064] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2012] [Revised: 01/24/2013] [Accepted: 01/28/2013] [Indexed: 06/01/2023]
Abstract
Bacterial biofilters usually exhibit a high microbial diversity and robustness, while fungal biofilters have been claimed to better withstand low moisture contents and pH values, and to be more efficient coping with hydrophobic volatile organic compounds (VOCs). However, there are only few systematic evaluations of both biofiltration technologies. The present study compared fungal and bacterial biofiltration for the treatment of a VOC mixture (propanal, methyl isobutyl ketone-MIBK, toluene and hexanol) under the same operating conditions. Overall, fungal biofiltration supported lower elimination capacities than its bacterial counterpart (27.7 ± 8.9 vs 40.2 ± 5.4 gCm(-3) reactor h(-1)), which exhibited a final pressure drop 60% higher than that of the bacterial biofilter due to mycelial growth. The VOC mineralization ratio was also higher in the bacterial bed (≈ 63% vs ≈ 43%). However, the substrate biodegradation preference order was similar for both biofilters (propanal>hexanol>MIBK>toluene) with propanal partially inhibiting the consumption of the rest of the VOCs. Both systems supported an excellent robustness versus 24h VOC starvation episodes. The implementation of a fungal/bacterial coupled system did not significantly improve the VOC removal performance compared to the individual biofilter performances.
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Affiliation(s)
- José M Estrada
- Departamento de Procesos y Tecnología, Universidad Autónoma Metropolitana-Cuajimalpa, Artificios 40, Col. Miguel Hidalgo, Delegación Álvaro Obregón, Mexico
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Shah AD, Dai N, Mitch WA. Application of ultraviolet, ozone, and advanced oxidation treatments to washwaters to destroy nitrosamines, nitramines, amines, and aldehydes formed during amine-based carbon capture. Environ Sci Technol 2013; 47:2799-2808. [PMID: 23425146 DOI: 10.1021/es304893m] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Although amine-based CO(2) absorption is a leading contender for full-scale postcombustion CO(2) capture at power plants, concerns have been raised about the potential release of carcinogenic N-nitrosamines and N-nitramines formed by reaction of exhaust gas NO(x) with the amines. Experiments with a laboratory-scale pilot unit suggested that washwater units meant to scrub contaminants from absorber unit exhaust could potentially serve as a source of N-nitrosamines via reactions of residual NO(x) with amines accumulating in the washwater. Dosage requirements for the continuous treatment of the washwater recycle line with ultraviolet (UV) light for destruction of N-nitrosamines and N-nitramines, and with ozone or hydroxyl radical-based advanced oxidation processes (AOPs) for destruction of amines and aldehydes, were evaluated. Although <1000 mJ/cm(2) UV fluence was generally needed for 90% removal of a series of model N-nitrosamines and N-nitramines, 280-1000 mJ/cm(2) average fluence was needed for 90% removal of total N-nitrosamines in pilot washwaters associated with two different solvents. While AOPs were somewhat more efficient than ozone for acetaldehyde destruction, ozone was more efficient for amine destruction. Ozone achieved 90% amine removal in washwaters at 5-12 molar excess of ozone, indicating transferred dosage levels of ∼100 mg/L for 90% removal in a first-stage washwater unit, but likely only ∼10 mg/L if applied to a second-stage washwater. Accurate dosage and cost estimates would require pilot testing to capture synergies between UV and ozone treatments.
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Affiliation(s)
- Amisha D Shah
- Department of Chemical and Environmental Engineering, Yale University, Mason Lab 313b, 9 Hillhouse Avenue, New Haven, Connecticut 06520, USA
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Tchouassi DP, Sang R, Sole CL, Bastos ADS, Teal PEA, Borgemeister C, Torto B. Common host-derived chemicals increase catches of disease-transmitting mosquitoes and can improve early warning systems for Rift Valley fever virus. PLoS Negl Trop Dis 2013; 7:e2007. [PMID: 23326620 PMCID: PMC3542179 DOI: 10.1371/journal.pntd.0002007] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2012] [Accepted: 11/29/2012] [Indexed: 11/19/2022] Open
Abstract
Rift Valley fever (RVF), a mosquito-borne zoonosis, is a major public health and veterinary problem in sub-Saharan Africa. Surveillance to monitor mosquito populations during the inter-epidemic period (IEP) and viral activity in these vectors is critical to informing public health decisions for early warning and control of the disease. Using a combination of field bioassays, electrophysiological and chemical analyses we demonstrated that skin-derived aldehydes (heptanal, octanal, nonanal, decanal) common to RVF virus (RVFV) hosts including sheep, cow, donkey, goat and human serve as potent attractants for RVFV mosquito vectors. Furthermore, a blend formulated from the four aldehydes and combined with CO2-baited CDC trap without a light bulb doubled to tripled trap captures compared to control traps baited with CO2 alone. Our results reveal that (a) because of the commonality of the host chemical signature required for attraction, the host-vector interaction appears to favor the mosquito vector allowing it to find and opportunistically feed on a wide range of mammalian hosts of the disease, and (b) the sensitivity, specificity and superiority of this trapping system offers the potential for its wider use in surveillance programs for RVFV mosquito vectors especially during the IEP. Enzootic transmission of arboviral diseases such as Rift Valley Fever (RVF) continues to occur at a low intensity among mosquito vectors in Kenya, which may remain undetected by most monitoring programs unless very sensitive tools are employed to detect virus activity before an outbreak occurs. Here, we report a more sensitive and mosquito-specific surveillance trapping system for RVF virus (RVFV) mosquito vectors based on mammalian-skin derived semiochemicals. We show that RVFV mosquito vectors detect similar components (heptanal, octanal, nonanal, decanal) in the skin of RVFV mammalian hosts. In field trials, each of these compounds when combined with CO2 increased captures of these mosquito vectors in a dose-dependent manner. Additionally, a blend formulated from optimal attractive dose of each of these compounds combined with CO2 significantly increased trap captures compared to control traps baited with CO2 alone. The four-component blend attracted multiple mosquito vectors of the disease under field conditions suggesting that a trapping system based on this formulation offers opportunity for its use as a tool for RVFV vector surveillance.
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Affiliation(s)
- David P. Tchouassi
- International Centre of Insect Physiology and Ecology (icipe), Nairobi, Kenya
- Department of Zoology and Entomology, University of Pretoria, Pretoria, South Africa
| | - Rosemary Sang
- International Centre of Insect Physiology and Ecology (icipe), Nairobi, Kenya
- Centre for Virus Research, Kenya Medical Research Institute (KEMRI), Nairobi, Kenya
| | - Catherine L. Sole
- Department of Zoology and Entomology, University of Pretoria, Pretoria, South Africa
| | - Armanda D. S. Bastos
- Department of Zoology and Entomology, University of Pretoria, Pretoria, South Africa
| | - Peter E. A. Teal
- USDA/ARS-Center for Medical, Agricultural and Veterinary Entomology, Gainesville, Florida, United States of America
| | | | - Baldwyn Torto
- International Centre of Insect Physiology and Ecology (icipe), Nairobi, Kenya
- * E-mail:
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Zhang JP, Salcedo C, Fang YL, Zhang RJ, Zhang ZN. An overlooked component: (Z)-9-tetradecenal as a sex pheromone in Helicoverpa armigera. J Insect Physiol 2012; 58:1209-1216. [PMID: 22732233 DOI: 10.1016/j.jinsphys.2012.05.018] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2012] [Accepted: 05/07/2012] [Indexed: 06/01/2023]
Abstract
The sex pheromone blend of Helicoverpa armigera (Hübner) (Lepidoptera: Noctuidae) is a multi-component system, as is that of many other moths, and (Z)-11-hexadecenal 90-99%+(Z)-9-hexadecenal 10-1% was recommended as a standard blend for attracting the species. However, this fails to account for the significance of other compounds that exist in the sex gland. The aim of the present study was to investigate the function of other compounds present in the female sex gland of H. armigera. Extract of female sex glands were analysed by GC-MS combined with GC-EAD. Total 10 compounds were identified, which two novel were reported in female sex gland: heptanal and nonanal, and some previously identified compounds were confirmed. We developed bioassays to evaluate the potential roles of these 10 compounds. In Y-tube bioassays, the gland constituents hexadecanal, (Z)-7-hexadecenal and (Z)-9-tetradecenal increased male attractiveness when added as a three-compound admixture to the standard blend. Field trapping tests showed that (Z)-9-tetradecenal doubled trap catch in comparison with the standard blend, but that the addition of (Z)-7-hexadecenal and hexadecanal did not significantly increase trap catch. These results indicated that while (Z)-7-hexadecenal and hexadecanal function well only at short range, (Z)-9-tetradecenal plays a very important role at both short and long ranges. We suggest that that (Z)-9-tetradecenal as a previously overlooked sex pheromone component of H. armigera, it should be added to sex pheromone lure formulations to improve pheromone trap sensitivity and the efficacy of commercial mating disruption.
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Affiliation(s)
- Jin-Ping Zhang
- State Key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, PR China
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Alarif WM, Al-Lihaibi SS, Abdel-Lateff A, Ayyad SEN. New antifungal cholestane and aldehyde derivatives from the red alga Laurencia papillosa. Nat Prod Commun 2011; 6:1821-1824. [PMID: 22312715] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/31/2023] Open
Abstract
The chloroform/methanol extract of the red alga, Laurencia papillosa, collected from the Red Sea in Saudi Arabia, was found to contain two cholestane derivatives: 3alpha, 6alpha-dihydroxy-5beta-cholestan-12-one (1) and the known, 6beta-hydroxycholest-4-en-3-one (2), which was isolated separately in a pure form for the first time. In addition to these compounds, a new aldehyde derivative, (E)-2-{(E) tridec-2-en-2-yl} heptadec-2-enal (3), was isolated. The structures of all compounds were established based on extensive spectroscopic (1D and 2D NMR, UV, IR) and mass spectrometric studies. All compounds, except 2, were tested for their antifungal activity. Significant activities were associated with 1 and 3 against Candida albicans, Aspergillus fumigatus, and A. flavus.
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Affiliation(s)
- Walied M Alarif
- Department of Marine Chemistry, Faculty of Marine Sciences, King AbdulAziz University, P.O. Box 80207, Jeddah 21589, Saudi Arabia.
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Zhong F, Gao Y, Yu T, Zhang Y, Xu D, Xiao E, He F, Zhou Q, Wu Z. The management of undesirable cyanobacteria blooms in channel catfish ponds using a constructed wetland: Contribution to the control of off-flavor occurrences. Water Res 2011; 45:6479-6488. [PMID: 22000715 DOI: 10.1016/j.watres.2011.09.044] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2011] [Revised: 09/20/2011] [Accepted: 09/21/2011] [Indexed: 05/31/2023]
Abstract
An exploratory study on the management of undesirable cyanobacteria blooms with respect to off-flavor problems using an integrated vertical-flow constructed wetland (CW) was performed at a small commercial-scale channel catfish farm from 2004 to 2007. The results of the three-year experiment indicated that water treatment by the CW could reduce the possibility of dominance by undesirable cyanobacteria species that often cause off-flavor problems. A detailed investigation in 2007, showed that the concentrations of geosmin, MIB (2-methylisoborneol), and β-cyclocitral in the water of the recirculating pond (4.3ngL(-1), U.D. (undetected) and 0.2ngL(-1), respectively) treated by the CW were significantly lower than those in the control pond (152.6ngL(-1), 63.3ngL(-1) and 254.8ngL(-1), respectively). In addition, the relationships among the cyanobacteria species, the off-flavor compounds and ten environmental variables were explored by canonical correspondence analysis (CCA). The results showed that Oscillatoria sp., Oscillatoria kawamurae and Microcystis aeruginosa were the main sources of off-flavor compounds in the catfish ponds. The successful manipulation of undesirable cyanobacteria species potentially resulted in lower concentrations of odorous compounds in the water of the recirculating pond. An investigation of the concentrations of geosmin and MIB in catfish fillets showed that the levels of odorous compounds were below the OTC (odor threshold concentration) values in the recirculating pond but were above the OTC values from July to October in the control pond. Water recycling by the CW could potentially be one of the best management practices to control off-flavor occurrences in aquaculture.
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Affiliation(s)
- Fei Zhong
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, PR China
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Lacey MJ, Sémon E, Krasulová J, Sillam-Dussès D, Robert A, Cornette R, Hoskovec M, Záček P, Valterová I, Bordereau C. Chemical communication in termites: syn-4,6-dimethylundecan-1-ol as trail-following pheromone, syn-4,6-dimethylundecanal and (5E)-2,6,10-trimethylundeca-5,9-dienal as the respective male and female sex pheromones in Hodotermopsis sjoestedti (Isoptera, Archotermopsidae). J Insect Physiol 2011; 57:1585-1591. [PMID: 21839084 DOI: 10.1016/j.jinsphys.2011.07.018] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2011] [Revised: 07/26/2011] [Accepted: 07/27/2011] [Indexed: 05/31/2023]
Abstract
The trail-following pheromone and sex pheromones were investigated in the Indomalayan termite Hodotermopsis sjoestedti belonging to the new family Archotermopsidae. Gas chromatography coupled to mass spectrometry (GC-MS) after solid phase microextraction (SPME) of the sternal gland secretion of pseudergates and trail-following bioassays demonstrated that the trail-following pheromone of H. sjoestedti was syn-4,6-dimethylundecan-1-ol, a new chemical structure for termite pheromones. GC-MS after SPME of the sternal gland secretion of alates also allowed the identification of sex-specific compounds. In female alates, the major sex-specific compound was identified as (5E)-2,6,10-trimethylundeca-5,9-dienal, a compound previously identified as the female sex pheromone of the termite Zootermopsis nevadensis. In male alates, the major sex-specific compound was identified as syn-4,6-dimethylundecanal, a homolog of syn-4,6-dimethyldodecanal, which has previously been confirmed as the male sex pheromone of Z. nevadensis. The presence of sex-specific compounds in alates of H. sjoestedti strongly suggests for this termite the presence of sex-specific pairing pheromones which were only known until now in Z. nevadensis. Our results showed therefore a close chemical relationship between the pheromones of the taxa Hodotermopsis and Zootermopsis and, in contrast, a clear difference with the taxa Stolotermes and Porotermes, which is in total agreement with the recent creation of the families Archotermopsidae and Stolotermitidae as a substitute for the former family Termopsidae.
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Affiliation(s)
- Michael J Lacey
- CSIRO Ecosystem Sciences, G.P.O. Box 1700, Canberra, ACT 2601, Australia
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