Patent ID: 7737121

Claim:
A method for increasing insulin concentration secreted by pancreatic beta cells comprising: providing to the pancreatic cells in the presence of glucose at a glucose concentration between a normal human glucose level and an elevated human glucose level of 2.5 times the normal human glucose level a composition of a purified mixture consisting of at least two molecules having structures where R is H, glucosyl or galactosyl; R′ is H, OH or OCH 3 ; and R″ is H, OH or OCH 3 with the proviso that when R is H, then R′ is not OCH 3 or R″ is not OCH 3 or both R′ and R″ are not OCH 3 wherein one of the at least two molecules has R is galactosyl, R′ is OH, and R″ is H and is cyanidin-3-galactoside or one of the at least two molecules has R is galactosyl, R′ is H, and R″ is H and is pelargonidin-3-galactoside; and allowing the composition to increase the insulin concentration secreted by the pancreatic cells.