期刊
FOODS
卷 12, 期 17, 页码 -出版社
MDPI
DOI: 10.3390/foods12173315
关键词
fermented food; polyphenols; polyphenol-associated enzymes; bioactivity; microorganisms
Polyphenols in plants have low bioavailability and bioactivity, but polyphenol-rich fermented foods have better bioactivity due to the hydrolysis of polyphenols by polyphenol-associated enzymes during fermentation. Different microorganisms secrete different enzymes for the transformation of polyphenols. Additionally, polyphenols can promote the growth of beneficial bacteria and inhibit the growth of pathogenic bacteria.
Polyphenols, as common components with various functional activities in plants, have become a research hotspot. However, researchers have found that the bioavailability and bioactivity of plant polyphenols is generally low because they are usually in the form of tannins, anthocyanins and glycosides. Polyphenol-rich fermented foods (PFFs) are reported to have better bioavailability and bioactivity than polyphenol-rich foods, because polyphenols are used as substrates during food fermentation and are hydrolyzed into smaller phenolic compounds (such as quercetin, kaempferol, gallic acid, ellagic acid, etc.) with higher bioactivity and bioavailability by polyphenol-associated enzymes (PAEs, e.g., tannases, esterases, phenolic acid decarboxylases and glycosidases). Biotransformation pathways of different polyphenols by PAEs secreted by different microorganisms are different. Meanwhile, polyphenols could also promote the growth of beneficial bacteria during the fermentation process while inhibiting the growth of pathogenic bacteria. Therefore, during the fermentation of PFFs, there must be an interactive relationship between polyphenols and microorganisms. The present study is an integration and analysis of the interaction mechanism between PFFs and microorganisms and is systematically elaborated. The present study will provide some new insights to explore the bioavailability and bioactivity of polyphenol-rich foods and greater exploitation of the availability of functional components (such as polyphenols) in plant-derived foods.
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