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Harumi Iyda J, Fernandes Â, Calhelha RC, Alves MJ, Ferreira FD, Barros L, Amaral JS, Ferreira IC. Nutritional composition and bioactivity of Umbilicus rupestris (Salisb.) Dandy: An underexploited edible wild plant. Food Chem 2019; 295:341-349. [DOI: 10.1016/j.foodchem.2019.05.139] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2019] [Revised: 05/18/2019] [Accepted: 05/20/2019] [Indexed: 11/27/2022]
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Garcia JA, Corrêa RC, Barros L, Pereira C, Abreu RM, Alves MJ, Calhelha RC, Bracht A, Peralta RM, Ferreira IC. Phytochemical profile and biological activities of 'Ora-pro-nobis' leaves (Pereskia aculeata Miller), an underexploited superfood from the Brazilian Atlantic Forest. Food Chem 2019; 294:302-308. [DOI: 10.1016/j.foodchem.2019.05.074] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2019] [Revised: 04/10/2019] [Accepted: 05/08/2019] [Indexed: 12/16/2022]
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Chihoub W, Dias MI, Barros L, Calhelha RC, Alves MJ, Harzallah-Skhiri F, Ferreira ICFR. Valorisation of the green waste parts from turnip, radish and wild cardoon: Nutritional value, phenolic profile and bioactivity evaluation. Food Res Int 2019; 126:108651. [PMID: 31732057 DOI: 10.1016/j.foodres.2019.108651] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2019] [Revised: 08/10/2019] [Accepted: 08/31/2019] [Indexed: 12/13/2022]
Abstract
The recovery of bio-wastes to obtain high added value compounds is of great interest for the pharmaceutical, medicinal and food industries. Therefore, the aerial parts of turnip (Brassica rapa L.), radish (Raphanus sativus L.) and leaf blade of wild cardoon (Cynara cardunculus L. var. sylvestris (Lamk) Fiori) were characterized regarding their nutritional composition, as also their content in soluble sugars, organic acids, fatty acids, and tocopherols. Furthermore, their hydroethanolic extracts and infusion preparations, were profiled regarding individual phenolic compounds by HPLC-DAD/ESI-MS and their antioxidant, antibacterial and hepatotoxic activities were evaluated. Regarding the nutritional content, wild cardoon revealed the best results, however it was radish and turnip that showed higher values for organic acids and phenolic compounds. The hydroethanolic extract and infusion preparation of wild cardoon stood out for its antioxidant and antibacterial activity. Overall, the hydroethanolic extracts seemed more effective (regarding antioxidant and antibacterial activity) than the infusions. Total phenolic acids proved to be strongly correlated with the antioxidant and antibacterial (against Morganella morganii) activities. This study showed that the discarded parts of these plants can be used as an important natural source of valuable nutrient content and new and safe bioactive compounds, beneficial for human health. Moreover, the extraction of those compounds from underused parts of turnip, radish and cardoon could be used to preserve foods, avoiding artificial additives and thus, contributing to the development of new natural ingredients.
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da Silva SC, Fernandes IP, Barros L, Fernandes Â, José Alves M, Calhelha RC, Pereira C, Barreira JC, Manrique Y, Colla E, Ferreira IC, Filomena Barreiro M. Spray-dried Spirulina platensis as an effective ingredient to improve yogurt formulations: Testing different encapsulating solutions. J Funct Foods 2019. [DOI: 10.1016/j.jff.2019.103427] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
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Arribas C, Pereira E, Barros L, Alves MJ, Calhelha RC, Guillamón E, Pedrosa MM, Ferreira IC. Healthy novel gluten-free formulations based on beans, carob fruit and rice: Extrusion effect on organic acids, tocopherols, phenolic compounds and bioactivity. Food Chem 2019; 292:304-313. [DOI: 10.1016/j.foodchem.2019.04.074] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2018] [Revised: 04/15/2019] [Accepted: 04/21/2019] [Indexed: 12/26/2022]
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Rached W, Barros L, Ziani BEC, Bennaceur M, Calhelha RC, Heleno SA, Alves MJ, Marouf A, Ferreira ICFR. HPLC-DAD-ESI-MS/MS screening of phytochemical compounds and the bioactive properties of different plant parts of Zizyphus lotus (L.) Desf. Food Funct 2019; 10:5898-5909. [PMID: 31465056 DOI: 10.1039/c9fo01423c] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Zizyphus lotus L. (Desf.) has been widely used as a homemade ingredient to treat numerous diseases in Algerian folk medicine. In this context, decoction, infusion and hydroethanolic extracts were prepared from the branches, leaves, roots, and stem barks. The extracts were characterized regarding their phytochemical composition by HPLC-DAD-ESI/MSn and were assessed for in vitro bioactivity (cytotoxicity, anti-inflammatory activity, and antibacterial activity). A total of 29 compounds (flavonoid derivatives and secoiridoids) were identified in Z. lotus, 15 being detected in leaves, 10 in branches, 5 in roots and 7 in stem barks. The highest contents of these compounds, especially secoiridoids, were detected in branches followed by leaves, oleuropein being the main compound detected in leaves and oleoside in branches. The aqueous preparations of the leaves and root barks revealed the highest cytotoxicity and anti-inflammatory potential. On the other hand, as for the antibacterial activity, the hydroethanolic extract of the branches showed the highest potential, especially against the MSSA strain. Hence, the chemical diversity found in Z. lotus makes it a source of bioactive ingredients that can be applied in the formulations of different ingredients in the food and pharmaceutical industries.
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da Silva LP, Pereira E, Prieto MA, Simal-Gandara J, Pires TCSP, Alves MJ, Calhelha R, Barros L, Ferreira ICFR. Rubus ulmifolius Schott as a Novel Source of Food Colorant: Extraction Optimization of Coloring Pigments and Incorporation in a Bakery Product. Molecules 2019; 24:E2181. [PMID: 31185684 PMCID: PMC6600145 DOI: 10.3390/molecules24112181] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2019] [Revised: 06/07/2019] [Accepted: 06/09/2019] [Indexed: 12/27/2022] Open
Abstract
(1) Background: Color has been considered to be the flashiest attribute of foodstuffs and researchers have shown a great interest in the extraction of pigmented compounds from vegetal products, with the purpose to provide alternative counterparts to the food industry; (2) Methods: This study aimed to explore Rubus ulmifolius Schott fruits as a potential source of anthocyanins, optimizing the extraction method, evaluating the bioactivity and incorporating the rich extract into a bakery food product; (3) Results: After the extraction optimization, results showed R. ulmifolius fruits to be a great source of anthocyanins, obtaining an amount of 33.58 mg AT/g E, with an extraction yield of 62.08%. The rich anthocyanin extract showed antitumor and antimicrobial potential in some tumor cell lines and strains, respectively, as well as the absence of toxicity; (4) Conclusions: The extract when incorporated in a bakery product showed a good coloring capacity, maintaining the nutritional value, revealing its use to be a great approach for replacing artificial colorants.
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Mandim F, Barros L, Heleno SA, Pires TCSP, Dias MI, Alves MJ, Santos PF, Ferreira ICFR. Phenolic profile and effects of acetone fractions obtained from the inflorescences of Calluna vulgaris (L.) Hull on vaginal pathogenic and non-pathogenic bacteria. Food Funct 2019; 10:2399-2407. [PMID: 31049501 DOI: 10.1039/c9fo00415g] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The phenolic profile and the antibacterial activity against pathogenic commensal vaginal bacteria exhibited by different fractions of the acetone extract of heather were assessed. The acetone extract of Calluna vulgaris (L.) Hull was fractionated by silica gel column chromatography through an eluent system of increasing polarity, and 10 different fractions (Fr 1 to Fr 10) were obtained. The phenolic profile was analyzed by HPLC-DAD-ESI/MS. Type B (epi)catechin dimers, (-)-epicatechin and (+)-catechin, were the main phenolic compounds present in the fractions. The antibacterial activity was also analyzed against pathogenic bacteria and the effect on the beneficial microflora was also assessed. Some of the obtained fractions revealed the capacity to inhibit pathogenic microorganisms without affecting the beneficial microflora, especially Fr 7 and Fr 8. For instance, Neisseria gonorrhoeae was inhibited by both of the fractions, while Fr 7 was more active against Klebsiella pneumoniae and Morganella morganii, and Fr 8 was active against methicillin resistant Staphylococcus aureus (MRSA) and methicillin susceptible Staphylococcus aureus (MSSA), without affecting the Lactobacillus strains. This study corroborates the therapeutic use of this matrix in traditional medicine.
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Lima Pessoa E, Costa Vilella Dos Reis M, Sayuri Yamamoto T, Ribeiro Neto M, Ferraro O, Alves MJ, Guedes Coelho Lopes R. Familial heterozygous hypobetalipoproteinemia and breast cancer risk: A systematic review and suggestions for further research. Breast J 2019; 25:763-765. [PMID: 31111608 DOI: 10.1111/tbj.13341] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2018] [Revised: 04/19/2018] [Accepted: 04/20/2018] [Indexed: 11/25/2022]
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Souilem F, Dias MI, Barros L, Calhelha RC, Alves MJ, Harzallah-Skhiri F, Ferreira ICFR. Phenolic Profile and Bioactive Properties of Carissa macrocarpa (Eckl.) A.DC.: An In Vitro Comparative Study between Leaves, Stems, and Flowers. Molecules 2019; 24:molecules24091696. [PMID: 31052298 PMCID: PMC6539727 DOI: 10.3390/molecules24091696] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2019] [Revised: 04/25/2019] [Accepted: 04/28/2019] [Indexed: 12/02/2022] Open
Abstract
The present work aimed to characterize leaves, stems, and flowers of Carissa macrocarpa (Eckl.) A.DC., by performing an analysis of the phenolic compounds by HPLC-DAD/ESI-MS, correlating them with bioactive properties, such as antioxidant, anti-inflammatory, cytotoxic, and antimicrobial activities. Thirty polyphenols were identified in the hydroethanolic extract, including phenolic acids, flavan-3-ols, and flavonol glycosides derivatives (which presented the highest number of identified compounds). However, flavan-3-ols showed the highest concentration in stems (mainly owing to the presence of dimers, trimmers, and tetramers of type B (epi)catechin). Leaves were distinguished by their high antioxidant and anti-inflammatory activities, as well as their bactericidal effect against E. coli, while stems presented a higher cytotoxic activity and bactericidal effect against Gram-positive bacteria. Moreover, a high correlation between the studied bioactivities and the presence of phenolic compounds was also verified. The obtained results bring added value to the studied plant species.
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Souilem F, Dias MI, Barros L, Calhelha RC, Alves MJ, Harzallah-Skhiri F, Ferreira ICFR. Amantagula Fruit (Carissa macrocarpa (Eckl.) A.DC.): Nutritional and Phytochemical Characterization. PLANT FOODS FOR HUMAN NUTRITION (DORDRECHT, NETHERLANDS) 2019; 74:76-82. [PMID: 30478775 DOI: 10.1007/s11130-018-0703-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Fruits are one of the most promising food matrices and they have been explored in the discovery of new natural and safer bioactive compounds. Carissa macrocarpa (Eckl.) A. DC. fruits are widely consumed in African countries for the preparation of traditional foodstuff, but also for their beneficially health effects. Thus, as the authors' best knowledge there are no studies on the chemical and bioactive characterization of these fruits. Therefore, fruits of C. macrocarpa from Tunisia were chemically characterized regarding their nutritional value and bioactive compounds. Furthermore, the hydroethanolic extract of these fruits was evaluated regarding its bioactive properties. The fruit powder sample showed high amounts of sugars and polyunsaturated fatty acids (PUFA). The organic acids and tocopherols' profiles revealed the presence of five organic acids and two tocopherol isoforms, being quinic acid and α-tocopherol the most abundant. The hydroethanolic extract of the fruits presented high antioxidant, cytotoxic, anti-inflammatory, and antibacterial properties, showing activity against all the bacterial strains studied, also inhibiting the cell growth of all the tested tumor cell lines, with the exception of HepG2, and did not reveal toxicity for the non-tumor cells PLP2. Therefore, the fruits of C. macrocarpa could be included in a daily basis diet as a source of high nutritional quality compounds with high bioactive potential.
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Ziani BE, Rached W, Bachari K, Alves MJ, Calhelha RC, Barros L, Ferreira IC. Detailed chemical composition and functional properties of Ammodaucus leucotrichus Cross. & Dur. and Moringa oleifera Lamarck. J Funct Foods 2019. [DOI: 10.1016/j.jff.2018.12.023] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
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da Silva LP, Pereira E, Pires TCSP, Alves MJ, Pereira OR, Barros L, Ferreira ICFR. Rubus ulmifolius Schott fruits: A detailed study of its nutritional, chemical and bioactive properties. Food Res Int 2019; 119:34-43. [PMID: 30884664 DOI: 10.1016/j.foodres.2019.01.052] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2018] [Revised: 01/13/2019] [Accepted: 01/21/2019] [Indexed: 12/13/2022]
Abstract
There is a growing interest in wild edible species that represent a source of several health-promoting compounds, providing a potential strategy to diversify and enrich the daily diet. The aim of the present work was to characterize the nutritional and chemical composition of Rubus ulmifolius Schott fruits. Furthermore, their antimicrobial activity, non-anthocyanin and anthocyanin phenolic profile were also determined. According to the obtained results, R. ulmifolius fruits exhibited a high concentration in carbohydrates and a low fat content, in comparison with the other nutrients and non-nutrients detected in this sample. The colour parameters demonstrated differences in a* and b* parameters after lyophilisation process. Glucose and fructose were the most abundant free sugars detected and quinic acid showed the highest content compared to the other five organic acids identified. The fatty acids profile revealed 25 compounds, being mostly represented by polyunsaturated fatty acids and evidencing linolenic and α-linolenic acid as the most abundant. All tocopherol isoforms were detected, revealing γ-tocopherol with highest amount. Cyanidin-3-O-glucoside, ellagic acid pentoside, ellagic acid glucuronide and sanguiin H-10 were the main phenolic compounds present, which could be related to the antimicrobial activity (MIC values ranging between 5 and 20 mg/mL) revealed by R. ulmifolius fruits. These results showed that this fruit is a good source of nutrients as also non-nutrient compounds, with human health benefits.
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Ghouti D, Rached W, Abdallah M, Pires TCSP, Calhelha RC, Alves MJ, Abderrahmane LH, Barros L, Ferreira ICFR. Phenolic profile and in vitro bioactive potential of Saharan Juniperus phoenicea L. and Cotula cinerea (Del) growing in Algeria. Food Funct 2019; 9:4664-4672. [PMID: 30187045 DOI: 10.1039/c8fo01392f] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
The aim of this study was to characterize the individual phenolic profile and antioxidant, anti-inflammatory, cytotoxic, and antimicrobial activities of hydroethanolic and infusion extracts prepared from Algerian Saharan Juniperus phoenicea L. and Cotula cinerea (Del). The phenolic profile was determined using a liquid chromatograph coupled to a diode array detector and an electrospray ionization mass spectrometer (LC-DAD-ESI/MS). A total of thirteen and nine individual phenolic compounds were identified in J. phoenicea and C. cinerea, respectively. 3-p-Coumaroylquinic acid, quercetin- and myricetin-O-pentoside were the major compounds present in J. phoenicea; on the other hand, C. cinerea presented luteolin-7-O-glucoside, luteolin-O-malonylhexoside, and 5-O-caffeoylquinic acid as the main molecules. In general, all samples exhibited interesting antioxidant activity when compared to the standard Trolox, but J. phoenicea extracts presented the highest bioactivity. Likewise, all the samples exhibited anti-inflammatory activity; thus J. phoenicea hydroethanolic extracts showed the highest potential (88 ± 8 μg mL-1). In addition, their cytotoxicity was evaluated towards a panel of four selected cell lines (HeLa, NCI-H460, MCF-7 and HepG2), and all the extracts showed cytotoxic effects, with J. phoenicea extracts being the most effective. The in vitro antimicrobial activity of the plant extracts was moderate, Gram-positive bacteria thus being more sensitive than the Gram-negative strains (MIC values between 5 and 20 mg mL-1). The present work suggests that J. phoenicea and C. cinerea are sources of bioactive ingredients with potential use in the food and pharmaceutical industries.
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Mandim F, Barros L, Calhelha RC, Abreu RMV, Pinela J, Alves MJ, Heleno S, Santos PF, Ferreira ICFR. Calluna vulgaris (L.) Hull: chemical characterization, evaluation of its bioactive properties and effect on the vaginal microbiota. Food Funct 2019; 10:78-89. [DOI: 10.1039/c8fo01910j] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
C. vulgaris inflorescences revealed myricetin derivatives as the main compound and polar extracts revealed higher bioactivities, preserving vaginal microbiota.
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Iyda JH, Fernandes Â, Ferreira FD, Alves MJ, Pires TCSP, Barros L, Amaral JS, Ferreira ICFR. Chemical composition and bioactive properties of the wild edible plant Raphanus raphanistrum L. Food Res Int 2018; 121:714-722. [PMID: 31108800 DOI: 10.1016/j.foodres.2018.12.046] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2018] [Revised: 12/18/2018] [Accepted: 12/22/2018] [Indexed: 12/29/2022]
Abstract
Recently, there has been an interest regarding the consumption of wild edible plants in modern diets. However, there is still scarce information about several wild vegetables traditionally consumed. Therefore, this work aims on documenting the nutritional and chemical composition of wild radish (Raphanus raphanistrum L.), as well as its bioactive potential. Results showed that wild radish is a potential source of beneficial compounds, including vitamin E, polyunsaturated fatty acid (particularly α-linolenic acid) and different phenolic compounds, in which fourteen phenolics were identified, with kaempferol-3,7-O-di-rhamnoside being the most abundant. The bioactive potential was exploited using hydroethanolic and decoction extracts. Both proved to inhibit several Gram-positive and Gram-negative bacteria and revealed antioxidant activity, while cytotoxicity against non-tumor cell was not observed. In general, results evidence the interest in recovering the use of this wild vegetable as part of a varied diet, which can bring several health benefits.
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Zan RA, Fernandes Â, Jedoz S, Oludemi T, Calhelha RC, Pires TCSP, Alves MJ, Martins RCC, Barros L, Ferreira ICFR. Bioactive properties and phytochemical assessment of Bacupari-anão (Garcinia brasiliensis Mart.) leaves native to Rondônia, Brazil. Food Funct 2018; 9:5621-5628. [PMID: 30302477 DOI: 10.1039/c8fo01474d] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Leaf fractions of Garcinia brasiliensis were evaluated concerning their antioxidant, antimicrobial, anti-inflammatory and cytotoxic properties, and the most active fraction was then fully characterized regarding its phenolic composition using HPLC-DAD-ESI/MSn. The ethyl acetate fraction from partitioning of the methanolic leaf extract revealed a strong antioxidant activity that was comparable to Trolox, the positive control. This fraction was also able to show a significant antimicrobial activity against Gram-positive and Gram-negative bacteria and the fungus Candida albicans. However, the dichloromethane fraction was found to present the highest anti-inflammatory (83 ± 9 μg mL-1) and cytotoxic activities, thus presenting slight toxicity using a non-tumor cell line. Regarding the phenolic profile, the ethyl acetate fraction presented twelve flavonoids, with morelloflavone-7''-O-glucoside (52.1 ± 0.4 mg g-1) and gardinia biflavonoid 2a glucoside (27.5 ± 0.2 mg g-1) being the major compounds identified. These results indicate that leaves of G. brasiliensis might be a potential source of natural biomolecules for pharmaceutical and medicinal applications.
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Peixoto CM, Dias MI, Alves MJ, Calhelha RC, Barros L, Pinho SP, Ferreira ICFR. Grape pomace as a source of phenolic compounds and diverse bioactive properties. Food Chem 2018; 253:132-138. [PMID: 29502813 DOI: 10.1016/j.foodchem.2018.01.163] [Citation(s) in RCA: 143] [Impact Index Per Article: 23.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2017] [Revised: 01/03/2018] [Accepted: 01/24/2018] [Indexed: 12/23/2022]
Abstract
The bio-residues resulting from the wine industry (grape pomace made up of skins, seeds and stems) are often undervalued but constitute a potential source of bioactive phenolic compounds that can be applied in several industries. In this context, the aim of the present study was to evaluate the phenolic profile of Vitis vinifera L. grape pomace (skins, seeds and their mixture), and correlate them with its antioxidant, cytotoxic and antibacterial activities. The seeds showed the highest amount of phenolic compounds and also the highest antioxidant, cytotoxic and antibacterial activities. The skins revealed the highest levels of anthocyanins and p-coumaric acid hexoside. Strong correlations were observed between the presence of phenolic compounds and all the bioactivities studied. These by-products are good sources of phenolic compounds with high antioxidant and antibacterial activity, and also presenting a moderate cytotoxicity activity. These added-value by-products have great applicability in food, pharmaceutical and cosmetic industries.
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Finimundy TC, Barros L, Calhelha RC, Alves MJ, Prieto MA, Abreu RM, Dillon AJ, Henriques JA, Roesch-Ely M, Ferreira IC. Multifunctions of Pleurotus sajor-caju (Fr.) Singer: A highly nutritious food and a source for bioactive compounds. Food Chem 2018; 245:150-158. [DOI: 10.1016/j.foodchem.2017.10.088] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2017] [Revised: 09/30/2017] [Accepted: 10/16/2017] [Indexed: 11/28/2022]
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Rached W, Bennaceur M, Barros L, Calhelha RC, Heleno S, Alves MJ, Carvalho AM, Marouf A, Ferreira ICFR. Detailed phytochemical characterization and bioactive properties of Myrtus nivelii Batt & Trab. Food Funct 2018; 8:3111-3119. [PMID: 28766621 DOI: 10.1039/c7fo00744b] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
The endemic Algerian myrtle, Myrtus nivelii Batt & Trab., was evaluated for its bioactive properties, such as antioxidant, anti-inflammatory, cytotoxic and antibacterial activities, and correlated with the individual phenolic compounds identified in its crude aqueous extract and subsequent organic fractions (ethyl acetate and butanol). Flavonols, such as myricetin, kaempferol and quercetin glycoside derivatives, were the major phenolic compounds found, along with the presence of ellagitannins. The ethyl acetate fraction contained the highest amount of phenolic compounds, followed by the butanol fraction and, finally, the crude aqueous extract. In general, all samples exhibited an excellent bioactivity, namely the ethyl acetate fraction that presented strong antioxidant activity, when compared to the standard trolox, strong cytotoxicity and antibacterial activity, especially against MRSA and MSSA. The present study revealed that the ethyl acetate fraction of M. nivelii could be used as a source of bioactive compounds in the food and pharmaceutical industries.
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Pires TCSP, Dias MI, Barros L, Calhelha RC, Alves MJ, Oliveira MBPP, Santos-Buelga C, Ferreira ICFR. Edible flowers as sources of phenolic compounds with bioactive potential. Food Res Int 2017; 105:580-588. [PMID: 29433250 DOI: 10.1016/j.foodres.2017.11.014] [Citation(s) in RCA: 120] [Impact Index Per Article: 17.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2017] [Revised: 10/24/2017] [Accepted: 11/16/2017] [Indexed: 10/18/2022]
Abstract
The edible flowers are widely used, but there is still a lot to be done in relation to its bioactive potential and its correlation with the presence of phenolic compounds. The aim of this study was determined the individual phenolic profile in the hydromethanolic extracts and infusion preparations of four different flower samples (Dahlia mignon, Rosa damascena 'Alexandria' and R. gallica 'Francesa' draft in R. canina, Calendula officinalis L., and Centaurea cyanus L.) and their bioactive potential (antioxidant, antiproliferative, and antibacterial capacity). All the studied flowers presented different profiles regarding their phenolic composition and revealed biological potential. The bioactive potential of the studied flowers was moderate, the hydromethanolic extracts of rose petals showed the best results for antioxidant and antibacterial assays, while the antiproliferative properties were only present in some of the tested cell lines, for the hydromethanolic extracts, in which dahlia and rose showed the best results. These results demonstrate that edible flowers can be used as a source of phenolic compounds with bioactive potential, which can be applied in the food sector, as foods and as sources natural ingredients.
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Taofiq O, Heleno SA, Calhelha RC, Alves MJ, Barros L, González-Paramás AM, Barreiro MF, Ferreira IC. The potential of Ganoderma lucidum extracts as bioactive ingredients in topical formulations, beyond its nutritional benefits. Food Chem Toxicol 2017; 108:139-147. [DOI: 10.1016/j.fct.2017.07.051] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2017] [Revised: 07/22/2017] [Accepted: 07/25/2017] [Indexed: 11/16/2022]
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48
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Pires TCSP, Dias MI, Barros L, Alves MJ, Oliveira MBPP, Santos-Buelga C, Ferreira ICFR. Antioxidant and antimicrobial properties of dried Portuguese apple variety (Malus domestica Borkh. cv Bravo de Esmolfe). Food Chem 2017; 240:701-706. [PMID: 28946332 DOI: 10.1016/j.foodchem.2017.08.010] [Citation(s) in RCA: 53] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2017] [Revised: 07/05/2017] [Accepted: 08/02/2017] [Indexed: 11/28/2022]
Abstract
Malus domestica Borkh apples are one of the most consumed fruits in the world, due to their sweetness and flavour. Herein, 'Bravo de Esmolfe' apple fruits were characterized regarding their nutritional value, chemical composition and bioactive properties. Besides nutrients, flavan-3-ols (i.e., epicatechin and B-type procyanidins) as also hydroxycinnamoyl-quinic acids and phloretin derivatives were identified in the samples. Extracts prepared from 'Bravo de Esmolfe' also proved to have antioxidant activity and antibacterial effects against Gram-positive bacteria, namely methicillin-susceptible Staphylococcus aureus (MSSA), methicillin-resistant Staphylococcus aureus (MRSA), Listeria monocytogenes and Enterococcus faecalis, and against the Gram-negative bacteria Escherichia coli, Escherichia coli (ESBL) (producing extended spectrum β-lactamases) and Morganella morganii. There is very little information about 'Bravo de Esmolfe' apple, so this study is important to inform consumers about an alternative source of nutritional and bioactive compounds.
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Oliveira M, Slezakova K, Alves MJ, Fernandes A, Teixeira JP, Delerue-Matos C, Pereira MDC, Morais S. Polycyclic aromatic hydrocarbons at fire stations: firefighters' exposure monitoring and biomonitoring, and assessment of the contribution to total internal dose. JOURNAL OF HAZARDOUS MATERIALS 2017; 323:184-194. [PMID: 26997333 DOI: 10.1016/j.jhazmat.2016.03.012] [Citation(s) in RCA: 55] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/2015] [Revised: 03/01/2016] [Accepted: 03/05/2016] [Indexed: 06/05/2023]
Abstract
This work characterizes levels of eighteen polycyclic aromatic hydrocarbons (PAHs) in the breathing air zone of firefighters during their regular work shift at eight Portuguese fire stations, and the firefighters' total internal dose by six urinary monohydroxyl metabolites (OH-PAHs). Total PAHs (ΣPAHs) concentrations varied widely (46.4-428ng/m3), mainly due to site specificity (urban/rural) and characteristics (age and layout) of buildings. Airborne PAHs with 2-3 rings were the most abundant (63.9-95.7% ΣPAHs). Similarly, urinary 1-hydroxynaphthalene and 1-hydroxyacenaphthene were the predominant metabolites (66-96% ΣOH-PAHs). Naphthalene contributed the most to carcinogenic ΣPAHs (39.4-78.1%) in majority of firehouses; benzo[a]pyrene, the marker of carcinogenic PAHs, accounted with 1.5-10%. Statistically positive significant correlations (r≥0.733, p≤0.025) were observed between ΣPAHs and urinary ΣOH-PAHs for firefighters of four fire stations suggesting that, at these sites, indoor air was their major exposure source of PAHs. Firefighter's personal exposure to PAHs at Portuguese fire stations were well below the existent occupational exposure limits. Also, the quantified concentrations of post-shift urinary 1-hydroxypyrene in all firefighters were clearly lower than the benchmark level (0.5μmol/mol) recommended by the American Conference of Governmental Industrial Hygienists.
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Oliveira M, Slezakova K, Alves MJ, Fernandes A, Teixeira JP, Delerue-Matos C, Pereira MDC, Morais S. Firefighters’ exposure biomonitoring: Impact of firefighting activities on levels of urinary monohydroxyl metabolites. Int J Hyg Environ Health 2016; 219:857-866. [DOI: 10.1016/j.ijheh.2016.07.011] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2016] [Revised: 06/17/2016] [Accepted: 07/13/2016] [Indexed: 12/14/2022]
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