Growth Promoted by Lychee Major Flavonoid through Metabolism.

() possesses health-promoting properties. Nevertheless, enrichment remains a challenging endeavor. Quercetin-3--rutinose-7--α-l-rhamnoside (QRR), a flavonoid found in lychee pulp, has a unique double-substituted glycosylated structure, requiring a specific intestinal microbiota for effective metabolism.

Lychee pulp phenolics fermented by mixed lactic acid bacteria strains promote the metabolism of human gut microbiota fermentation .

Lychee pulp phenolics possess excellent biological activities, however, changes in phenolic substances after microbial treatments are unknown. Herein, lychee pulp was fermented by , and a mixed strain of the two, followed by an investigation of the products' colonic fermentation. In comparison to single-strain fermentation, mixed-strain fermentation significantly increased catechin and quercetin.