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Issue 6, 2012
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Recent developments on polyphenol–protein interactions: effects on tea and coffee taste, antioxidant properties and the digestive system

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Abstract

Tea and coffee are widely consumed beverages across the world and they are rich sources of various polyphenols. Polyphenols are responsible for the bitterness and astringency of beverages and are also well known to impart antioxidant properties which is beneficial against several oxidative stress related diseases like cancer, cardiovascular diseases, and aging. On the other hand, proteins are also known to display many important roles in several physiological activities. Polyphenols can interact with proteins through hydrophobic or hydrophilic interactions, leading to the formation of soluble or insoluble complexes. According to recent studies, this complex formation can affect the bioavailability and beneficiary properties of both the individual components, in either way. For example, polyphenol–protein complex formation can reduce or enhance the antioxidant activity of polyphenols; similarly it can also affect the digestion ability of several digestive enzymes present in our body. Surprisingly, no review article has been published recently which has focused on the progress in this area, despite numerous articles having appeared in this field. This review summarizes the recent trends and patterns (2005 onwards) in polyphenolprotein interaction studies focusing on the characterization of the complex, the effect of this complex formation on tea and coffee taste, antioxidant properties and the digestive system.

Graphical abstract: Recent developments on polyphenol–protein interactions: effects on tea and coffee taste, antioxidant properties and the digestive system

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Article information


Submitted
04 Jan 2012
Accepted
05 Mar 2012
First published
30 Mar 2012

Food Funct., 2012,3, 592-605
Article type
Review Article

Recent developments on polyphenolprotein interactions: effects on tea and coffee taste, antioxidant properties and the digestive system

P. Bandyopadhyay, A. K. Ghosh and C. Ghosh, Food Funct., 2012, 3, 592
DOI: 10.1039/C2FO00006G

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