Effects of simulated digestion on black chokeberry (Aronia melanocarpa(Michx.) Elliot) anthocyanins and intestinal flora

In this study, the changes of anthocyanin content, total phenols, antioxidant capacity, microbiota composition before and after digestion and intestine fermentation in stomach and intestine were studied. The results indicated that after simulated gastrointestinal digestion, compared with the original sample, the total phenol content and anthocyanin content of intestinal digestion group for 2 h (ID 2 group) decreased by 53.64% and 70.45%, respectively, DPPH inhibition rate was 32.75% and T-AOC values of the extracts decreased to 62.89U/mg. The anthocyanins were identified to be composed of cyanidin-3-arabinoside, cyanidin-3-galactoside, cyanidin-3-xyloside, and cyanidin-3-glucoside. Black Chokeberry (Aronia melanocarpa(Michx.) Elliot) anthocyanins significantly increased the relative richness ofBacteroides, promoted the growth ofBifidobacterium,Blautia,Faecalibacterium, and inhibited the growth ofPrevotella,Megamonas,Escherichia/Shigella, etc. Anthocyanins have a positive regulatory effect on intestinal flora. These studies also provide essential information for the development of anthocyanin related health care products and drug products.

Automated summary

The study found that anthocyanins play an important role in digestion and intestinal fermentation, positively regulating the intestinal microbiota. Anthocyanins have significant effects on antioxidation and promoting the growth of beneficial bacteria.