Evaluation of anthoxanthins and their actions on digestive enzyme inhibition when used independently and in combination.

Autor: Koh YQ; Department of Pharmacy, Faculty of Science, National University of Singapore, Singapore., Sin YAD; Department of Pharmacy, Faculty of Science, National University of Singapore, Singapore., Rong HJ; Department of Pharmacy, Faculty of Science, National University of Singapore, Singapore., Chua THS; Department of Pharmacy, Faculty of Science, National University of Singapore, Singapore., Ho SS; Hoow Foods Pte Ltd, 67 Ayer Rajah Crescent, Singapore., Ho HK; Department of Pharmacy, Faculty of Science, National University of Singapore, Singapore.
Jazyk: angličtina
Zdroj: Heliyon [Heliyon] 2022 Aug 08; Vol. 8 (8), pp. e10131. Date of Electronic Publication: 2022 Aug 08 (Print Publication: 2022).
DOI: 10.1016/j.heliyon.2022.e10131
Abstrakt: Carbohydrate digestibility is a key determinant for elevated postprandial hyperglycemia (PPHG). Apart from dietary restrictions, one of the strategies to reduce PPHG is to limit the activity of carbohydrate digestive enzymes within the gastrointestinal tract in order to reduce monosaccharide absorption rates. The present work aimed to assess the inhibitory capabilities of digestive enzymes (e.g., α-glucosidase and α-amylase) by anthoxanthins when used independently, in combination with acarbose, or with a different anthoxanthin. Our results showed that quercetin, myricetin, and luteolin presented lower IC 50 values than acarbose and inhibited α-glucosidase through mixed-type inhibition. On the other hand, acarbose when compared with these anthoxanthins, remained the most potent inhibitor of α-amylase. Combinatorial treatment (i) acarbose-quercetin and (ii) myricetin-luteolin showed synergistic activity (CI value less than 0.9) in α-glucosidase inhibition. An additive effect (CI value between 0.9 and 1.1) in α-glucosidase inhibition was observed when acarbose-myricetin, acarbose-luteolin or when a combination of two different anthoxanthins (quercetin-myricetin and quercetin-luteolin) was used. This study suggests the potential use of anthoxanthins as functional food ingredients to mitigate PPHG towards the management of T2DM.
Competing Interests: The authors declare no conflict of interest.
(© 2022 The Author(s).)
Databáze: MEDLINE