Cyanidin-3-rutinoside
(C3R), a common glycosylated structure, displays a wide range of
biological activities including antioxidant, anti-inflammation and
anti-carcinogenic [21,22]. Our previous investigation has shown
anti-hyperglycemic activity by inhibiting -glucosidase (maltase
and sucrase) and pancreatic -amylase in vitro and in vivo [23,24].