The impact of oolong and black tea polyphenols on human health

Zhang, Hua; Qi, Ruili; Mine, Yoshinori

doi:10.1016/j.fbio.2019.03.009

Cited by 127 publications

(70 citation statements)

References 73 publications

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“…Phenolic extracts of vine pruning residues demonstrated a decrease in the cell proliferation of four different cancer cell lines [144]. Polyphenols from oolong and black tea demonstrated various health benefits including anticancer, antioxidant, anti-cardiovascular, antimicrobial, anti-hyperglycemic, and anti-obesity activities [145]. Polyphenol extracts rich in β-carotene and rutin showed to have not only antioxidant but also anti-inflammatory effect [146].…”

Section: Polyphenols As Extracted Biocompoundsmentioning

confidence: 99%

Green and Sustainable Valorization of Bioactive Phenolic Compounds from Pinus By-Products

et al. 2020

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In Europe, pine forests are one of the most extended forests formations, making pine residues and by-products an important source of compounds with high industrial interest as well as for bioenergy production. Moreover, the valorization of lumber industry residues is desirable from a circular economy perspective. Different extraction methods and solvents have been used, resulting in extracts with different constituents and consequently with different bioactivities. Recently, emerging and green technologies as ultrasounds, microwaves, supercritical fluids, pressurized liquids, and electric fields have appeared as promising tools for bioactive compounds extraction in alignment with the Green Chemistry principles. Pine extracts have attracted the researchers’ attention because of the positive bioproperties, such as anti-inflammatory, antimicrobial, anti-neurodegenerative, antitumoral, cardioprotective, etc., and potential industrial applications as functional foods, food additives as preservatives, nutraceuticals, pharmaceuticals, and cosmetics. Phenolic compounds are responsible for many of these bioactivities. However, there is not much information in the literature about the individual phenolic compounds of extracts from the pine species. The present review is about the reutilization of residues and by-products from the pine species, using ecofriendly technologies to obtain added-value bioactive compounds for industrial applications.

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Section: Polyphenols As Extracted Biocompoundsmentioning

confidence: 99%

Green and Sustainable Valorization of Bioactive Phenolic Compounds from Pinus By-Products

et al. 2020

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“…Black teas: prevention of cancer; obesity, antioxidant protective and anti-hyperglycemic effects (116).…”

Section: Polyphenolic Tea Extractsmentioning

confidence: 99%

Natural Compounds With Antibacterial Activity Against Cronobacter spp. in Powdered Infant Formula: A Review

Yemiş

Delaquis

2020

Front. Nutr.

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Bacteria from the genus Cronobacter are opportunistic foodborne pathogens capable of causing severe infections in neonates, the elderly and immunocompromised adults. The majority of neonatal infections have been linked epidemiologically to dehydrated powdered infant formulas (PIFs), the majority of which are manufactured using processes that do not ensure commercial sterility. Unfortunately, the osmotolerance, desiccation resistance, mild thermotolerance and wide-ranging minimum, optimum and maximum growth temperatures of Cronobacter spp. are conducive to survival and/or growth during the processing, reconstitution and storage of reconstituted PIFs. Consequently, considerable research has been directed at the development of alternative strategies for the control of Cronobacter spp. in PIFs, including approaches that employ antimicrobial compounds derived from natural sources. The latter include a range of phytochemicals ranging from crude extracts or essential oils derived from various plants (e.g., thyme, cinnamon, clove, marjoram, cumin, mint, fennel), to complex polyphenolic extracts (e.g., muscadine seed, pomegranate peel, olive oil, and cocoa powder extracts), purified simple phenolic compounds (e.g., carvacrol, citral, thymol, eugenol, diacetyl, vanillin, cinnamic acid, trans-cinnamaldehyde, ferulic acid), and medium chain fatty acids (monocaprylin, caprylic acid). Antimicrobials derived from microbial sources (e.g., nisin, other antibacterial peptides, organic acids, coenzyme Q0) and animal sources (e.g., chitosan, lactoferrin, antibacterial peptides from milk) have also been shown to exhibit antibacterial activity against the species. The selection of antimicrobials for the control of Cronobacter spp. requires an understanding of activity at different temperatures, knowledge about their mode of action, and careful consideration for toxicological and nutritional effects on neonates. Consequently, the purpose of the present review is to provide a comprehensive summary of currently available data pertaining to the antibacterial effects of natural antimicrobial compounds against Cronobacter spp. with a view to provide information needed to inform the selection of compounds suitable for control of the pathogen during the manufacture or preparation of PIFs by end users.

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“…Based upon the degree of tea fermentation, Camellia tea can be classified as GT (0%), yellow tea (10%−30%), Oolong tea (30%−80%) and red tea (80%−100%) [22] . Medicinal values of tea have been well known (e.g., “Cha Jing” (Tea Bible) by Lu Yu of the Tang Dynasty), but potential health properties of tea polyphenols indicated anticancer, antioxidant validated scientifically within these 3–4 decades [23] . Modern medicine used the theory of free radical and immunity to elucidate such specific effects of Camellia tea on human health.…”

Section: Introductionmentioning

confidence: 99%

Exploring community evolutionary characteristics of microbial populations with supplementation of Camellia green tea extracts in microbial fuel cells

Qin

Guo

et al. 2020

Journal of the Taiwan Institute of Chemical Engineers

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The impact of oolong and black tea polyphenols on human health

Cited by 127 publications

References 73 publications

Green and Sustainable Valorization of Bioactive Phenolic Compounds from Pinus By-Products

Green and Sustainable Valorization of Bioactive Phenolic Compounds from Pinus By-Products

Natural Compounds With Antibacterial Activity Against Cronobacter spp. in Powdered Infant Formula: A Review

Exploring community evolutionary characteristics of microbial populations with supplementation of Camellia green tea extracts in microbial fuel cells

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