1
|
Brescia FF, Koch M, Wende RC, Schreiner PR, Zorn H, Fraatz MA. Structure Elucidation of Aroma-Active Bicyclic Benzofuran Derivatives Formed by Cystostereum murrayi. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023; 71:7744-7751. [PMID: 37172111 DOI: 10.1021/acs.jafc.3c01807] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
Among the monoterpenoid aroma compounds formed by the basidiomycete Cystostereum murrayi are highly potent bicyclic benzofuran derivatives. In addition to the dill ethers previously described in a few fungi, two stereoisomers of the rare 3,6-dimethyl-3a,4,5,6,7,7a-hexahydro-3H-1-benzofuran-2-one (1a and 2c), also known as dihydromenthofurolactones, and a C3-unsaturated analogue (3a) are formed by C. murrayi. The analysis of synthesized reference standards of the lactones allowed an unambiguous assignment of the stereoisomers formed by the fungus. Despite a similar structure, two key differences in the stereochemistry of the lactones and dill ethers emerged. The analysis of submerged cultures further revealed the formation of additional, so far unknown, fungal terpenoids, including limonen-10-ol (7) and the corresponding aldehyde limonen-10-al (8). Analysis of chiral terpenoids as well as supplementation studies, including stable isotope-labeled compounds, indicated independent biogenesis pathways for dill ethers and lactones.
Collapse
Affiliation(s)
- Fabio F Brescia
- Institute of Food Chemistry and Food Biotechnology, Justus Liebig University Giessen, Heinrich-Buff-Ring 17, 35392 Giessen, Germany
| | - Maximilian Koch
- Institute of Food Chemistry and Food Biotechnology, Justus Liebig University Giessen, Heinrich-Buff-Ring 17, 35392 Giessen, Germany
| | - Raffael C Wende
- Institute of Organic Chemistry, Justus Liebig University Giessen, Heinrich-Buff-Ring 17, 35392 Giessen, Germany
| | - Peter R Schreiner
- Institute of Organic Chemistry, Justus Liebig University Giessen, Heinrich-Buff-Ring 17, 35392 Giessen, Germany
| | - Holger Zorn
- Institute of Food Chemistry and Food Biotechnology, Justus Liebig University Giessen, Heinrich-Buff-Ring 17, 35392 Giessen, Germany
- Fraunhofer Institute for Molecular Biology and Applied Ecology, Ohlebergsweg 12, 35392 Giessen, Germany
| | - Marco A Fraatz
- Institute of Food Chemistry and Food Biotechnology, Justus Liebig University Giessen, Heinrich-Buff-Ring 17, 35392 Giessen, Germany
| |
Collapse
|
2
|
Hammad I, Dornier M, Lebrun M, Maraval I, Poucheret P, Dhuique-Mayer C. Impact of crossflow microfiltration on aroma and sensory profiles of a potential functional citrus-based food. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2022; 102:5768-5777. [PMID: 35398897 DOI: 10.1002/jsfa.11926] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2022] [Revised: 04/06/2022] [Accepted: 04/09/2022] [Indexed: 06/14/2023]
Abstract
BACKGROUND Citrus juices can be cold-concentrated by crossflow microfiltration (CMF) in order to obtain functional foods enriched in carotenoids, flavonoids and pectins. The work aimed to characterize the organoleptic quality of this type of micronutrient-dense foods through their aroma profile and sensory analysis. Two citrus concentrates with and without a diafiltration step were compared. RESULTS Both citrus products were very different, linked to aroma compound, sugar and organic acid contents. Due to its sugar/acidity balance and its better aromatic profile responsible for the citrus-floral flavour, the concentrate without diafiltration was preferred by the sensory panel. Thanks to a simple transfer model, we showed that retention of volatiles clearly varied from one aroma compound to another. The terpene hydrocarbons were the most retained by the membrane during CMF, probably because they were strongly associated with insoluble solids by adsorption. CONCLUSION Even though the process modified their organoleptic profiles, both citrus-based products were well rated and can be consumed directly as pleasant functional drinks. © 2022 Society of Chemical Industry.
Collapse
Affiliation(s)
- Imane Hammad
- QualiSud, Université Montpellier, Avignon Université, Cirad, Institut Agro, Université La Réunion, Montpellier, France
| | - Manuel Dornier
- QualiSud, Université Montpellier, Avignon Université, Cirad, Institut Agro, Université La Réunion, Montpellier, France
| | - Marc Lebrun
- QualiSud, Université Montpellier, Avignon Université, Cirad, Institut Agro, Université La Réunion, Montpellier, France
- CIRAD, UMR QualiSud, Montpellier, France
| | - Isabelle Maraval
- QualiSud, Université Montpellier, Avignon Université, Cirad, Institut Agro, Université La Réunion, Montpellier, France
- CIRAD, UMR QualiSud, Montpellier, France
| | - Patrick Poucheret
- QualiSud, Université Montpellier, Avignon Université, Cirad, Institut Agro, Université La Réunion, Montpellier, France
| | - Claudie Dhuique-Mayer
- QualiSud, Université Montpellier, Avignon Université, Cirad, Institut Agro, Université La Réunion, Montpellier, France
- CIRAD, UMR QualiSud, Montpellier, France
| |
Collapse
|
3
|
Mazzatenta A, Berardi A, Novarria GA, Neri G. Unmasking the 'Asymptomatic' COVID-19: A Nose Question. LIFE (BASEL, SWITZERLAND) 2022; 12:life12081248. [PMID: 36013428 PMCID: PMC9410152 DOI: 10.3390/life12081248] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/04/2022] [Revised: 08/12/2022] [Accepted: 08/14/2022] [Indexed: 12/22/2022]
Abstract
The new severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) virus has high infectivity, often masked by asymptomatic carriers, which allows it to spread rapidly and become a pandemic. Attempts to slow the pandemic at this stage depend on the ability to unmask asymptomatic carriers. The rapid diagnosis of active coronavirus disease 2019 (COVID-19) infection is one of the cornerstones of pandemic control, as the nasal cavity is the main gateway for SARS-CoV-2 entry and altered sense of smell is a feature of the current virus. In the present study, we therefore tested the olfactory threshold coupled with heart–lung parameters in subjects undergoing traditional molecular testing, resulting in a significantly different score between asymptomatic subjects and healthy controls. In total, 82% of asymptomatic positives showed olfactory impairment; of these, 46% had severe hyposmia and 7% had anosmia, while in the control 9% had severe hyposmia and 0% had anosmia, respectively, which agrees with heart rate, breathing rate, and blood pressure parameter variations. The olfactory test coupled with physiological parameters may help to identify asymptomatic people. In conclusion, our results suggest that most asymptomatic individuals could be unmasked by mass olfactory rapid threshold screening and then referred to traditional slower diagnostic tests.
Collapse
Affiliation(s)
- Andrea Mazzatenta
- Dipartimento di Neuroscienze, Imaging and Clinical Science, ‘G. d’Annunzio’ Chieti-Pescara University, Via dei Vestini 31, 66100 Chieti, Italy
- Correspondence:
| | - Anna Berardi
- ENT Department, Istituto Clinico Città Studi, Via Jommelli 17, 20131 Milano, Italy
| | | | - Giampiero Neri
- Dipartimento di Neuroscienze, Imaging and Clinical Science, ‘G. d’Annunzio’ Chieti-Pescara University, Via dei Vestini 31, 66100 Chieti, Italy
| |
Collapse
|
4
|
Battistelli N, Perpetuini G, Piva A, Pepe A, Sidari R, Wache Y, Tofalo R. Cultivable microbial ecology and aromatic profile of "mothers" for Vino cotto wine production. Food Res Int 2021; 143:110311. [PMID: 33992330 DOI: 10.1016/j.foodres.2021.110311] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Revised: 03/06/2021] [Accepted: 03/06/2021] [Indexed: 11/17/2022]
Abstract
The aim of the present study was to assess the cultivable microbiota of "mothers" of Vino cotto collected from production of different years 1890, 1895, 1920, 1975, 2008. A total of 73 yeasts and 81 bacteria were isolated. Starmerella lactis-condensi, Starmerella bacillaris, Hanseniaspora uvarum, Saccharomyces cerevisiae, Hanseniaspora guillermondi and Metschnikowia pulcherrima were identified. Bacteria isolates belonged to lactic acid bacteria (Lactiplantibacillus plantarum and Pediococcus pentosaceus) and acetic acid bacteria (Gluconobacter oxydans). Remarkable biodiversity was observed for Starm. bacillaris, as well as L. plantarum and G. oxydans. Organic acids and volatile compounds were also determined. Malic and succinic acids were the main ones with values ranging from 8.49 g/L to 11.76 g/L and from 4.15 g/L to 7.73 g/L respectively, while citric acid was present at low concentrations (<0.2 g/L) in all samples. Esters and higher alcohols were the main volatile compounds detected followed by alkanes. This study permits to better understand the microbial communities associated to this product and could be considered a starting point for the definition of tailored starter cultures to improve the quality of Vino cotto preserving its typical traits.
Collapse
Affiliation(s)
- Noemi Battistelli
- Faculty of BioScience and Technology for Food, Agriculture and Environment, University of Teramo, Via R. Balzarini, 1, 64100 Teramo, Italy
| | - Giorgia Perpetuini
- Faculty of BioScience and Technology for Food, Agriculture and Environment, University of Teramo, Via R. Balzarini, 1, 64100 Teramo, Italy
| | - Andrea Piva
- Faculty of BioScience and Technology for Food, Agriculture and Environment, University of Teramo, Via R. Balzarini, 1, 64100 Teramo, Italy
| | - Alessia Pepe
- Faculty of BioScience and Technology for Food, Agriculture and Environment, University of Teramo, Via R. Balzarini, 1, 64100 Teramo, Italy
| | - Rossana Sidari
- Department of Agraria, Mediterranean University of Reggio Calabria, Loc. Feo di Vito, I-89122 Reggio Calabria, Italy
| | - Yves Wache
- Tropical Fermentation Network, France; International Joint Laboratory, Tropical Bioresources & Biotechnology, Univ. Bourgogne Franche-Comté, AgroSup Dijon, PAM UMR A 02.102 and School of Biotechnology and Food Technology, Hanoi University of Science and Technology, Dijon, France; School of Food Science and Technology, Faculty of Science and Technology, Thammasat University, 12120, Thailand
| | - Rosanna Tofalo
- Faculty of BioScience and Technology for Food, Agriculture and Environment, University of Teramo, Via R. Balzarini, 1, 64100 Teramo, Italy.
| |
Collapse
|
5
|
Gabetti E, Sgorbini B, Stilo F, Bicchi C, Rubiolo P, Chialva F, Reichenbach SE, Bongiovanni V, Cordero C, Cavallero A. Chemical fingerprinting strategies based on comprehensive two-dimensional gas chromatography combined with gas chromatography-olfactometry to capture the unique signature of Piemonte peppermint essential oil (Mentha x piperita var Italo-Mitcham). J Chromatogr A 2021; 1645:462101. [PMID: 33848659 DOI: 10.1016/j.chroma.2021.462101] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2020] [Revised: 03/18/2021] [Accepted: 03/22/2021] [Indexed: 10/21/2022]
Abstract
Accurate, reliable, and informative mapping of untargeted and targeted components across many samples is here performed by combining off-line GC-Olfactometry (GC-O) and comprehensive two-dimensional gas chromatography (GC×GC) coupled to time-of-flight mass spectrometry with variable ionization energy (TOF MS featuring Tandem Ionization™). In particular, untargeted and targeted (UT) features patterns are processed by chromatographic fingerprinting, giving differential priority to potent odorants' retention-times regions. Distinguishing peppermint essential oil (EO) from Piedmont (Italy - Mentha × piperita L. var. Italo-Mitcham - Menta di Pancalieri EO), with its unique sensory fingerprint (i.e., freshness and long-lasting sweetness), from high-quality peppermint EOs produced in other areas poses a great challenge. Chromatographic UT fingerprinting provided a great chemical dimensionality by mapping more than 350 peak-regions at 70 eV and 135 at 12 eV. From them, 95 components were identified and responses compared to available literature. Then, potent odorants, detected by GC-O using the aroma extraction dilution analysis (AEDA), were tracked over the chromatographic space and tentatively identified. With the highest flavor dilution (FD), 1,8-cineole (eucalyptus, fresh, camphoraceous); menthone (minty, herbaceous); and menthofuran (minty, musty, petroleum-like) were highlighted. Responsible for creamy and coumarinic notes were the diasteroisomers of (3,6)-dimethyl-4,5,6,7-tetrahydrobenzo[b]-furan-2(3H)-one (i.e., menthofurolactones), detected in higher relative abundance in Pancalieri EOs. By prioritizing the investigation of volatiles on higher LogFD retention regions, including 131 untargeted/targeted features, Pancalieri EOs were separately clustered from United States samples. Besides pre-targeted analytes, additional untargeted features were post-processed for identification within marker chemicals. Myrtenyl methyl ether, ethyl 3-methyl butanoate, propyl-2-methylbutanoate, and (E)-2-hexenal were putatively identified. Of the "unknown - knowns" with diagnostic roles, all metadata were collected including low energy spectra at 12 eV, which were found to be highly complementary to 70 eV spectra.
Collapse
Affiliation(s)
| | - Barbara Sgorbini
- University of Turin, Dipartimento di Scienza e Tecnologia del Farmaco Turin, Italy
| | - Federico Stilo
- University of Turin, Dipartimento di Scienza e Tecnologia del Farmaco Turin, Italy
| | - Carlo Bicchi
- University of Turin, Dipartimento di Scienza e Tecnologia del Farmaco Turin, Italy
| | - Patrizia Rubiolo
- University of Turin, Dipartimento di Scienza e Tecnologia del Farmaco Turin, Italy
| | | | - Stephen E Reichenbach
- Computer Science and Engineering Department, University of Nebraska - Lincoln, Lincoln, Nebraska, USA; GC Image, LLC, Lincoln, Nebraska, USA
| | | | - Chiara Cordero
- University of Turin, Dipartimento di Scienza e Tecnologia del Farmaco Turin, Italy.
| | | |
Collapse
|
6
|
Mentha piperita L. Micropropagation and the Potential Influence of Plant Growth Regulators on Volatile Organic Compound Composition. Molecules 2020; 25:molecules25112652. [PMID: 32517340 PMCID: PMC7321412 DOI: 10.3390/molecules25112652] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Revised: 06/01/2020] [Accepted: 06/03/2020] [Indexed: 11/17/2022] Open
Abstract
Due to the industrial use of Mentha piperita L. (peppermint), it is important to develop an optimal method to obtain standardized plant material with specific quality parameters. In vitro cultures may allow the production of desirable odor-active compounds (OACs) and improve their share in the plant aroma profile. There are two types of explants that are commonly used, apical meristems and nodal segments. In this study, the best overall effects were shown to be produced by the combination of MS medium with the addition of 0.5 mg·dm−3 indolyl-3-butyric acid. In this case, a very high degree of rooting was found (97% for apical meristems, 100% for nodal meristems), lateral shoots were induced in 83% of both types of explant, and the content of OACs in the plant aroma profile increased significantly, especially menthofurolactone and cis-carvone oxide, responsible in this case for a characteristic mint-like aroma. The comparison of the volatile organic compounds (VOCs) obtained from plants of different origin by GC-MS showed no significant differences in their qualitative composition. Moreover, in-vitro-cultivated peppermint on a medium containing 0.5 mg·dm−3 2-isopentinloadenine and 0.1 mg·dm−3 indolyl-3-acetic acid showed significant amounts of menthofurolactone in its VOC composition.
Collapse
|