Polyphenols are reported to modulate starch digestibility via either direct inhibition of alpha-glycosidase digestive enzymes and/or the formation of inclusion and non-inclusion complexes with starch. In particular, the former process results from binding interactions between phenolics and the free enzymes. Concerning the latter process, recent evidences support specific non-covalent bonds between different polyphenols (mainly flavonoids, phenolic acids and tannins) and carbohydrate polymers via hydrogen bonds and hydrophobic interactions. This role played by phenolics towards starch digestibility could represent a valid strategy to design functional foods and/or to manage type II diabetes. This short-review provides an updated and critical overview on the complex interactions occurring between phenolic compounds and amylolytic enzymes within the food-matrix and during food digestion, together with the postulated effects provided by polyphenols-starch interactions on starch digestibility. Noteworthy, considering that the most recent works on this topic are from in vitro studies, further in vivo research is deserved.
Lingua originaleEnglish
pagine (da-a)102-113
Numero di pagine12
Stato di pubblicazionePubblicato - 2020


  • digestion
  • starch


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