Objective: to study the influence of Vc on purple and red syrup pigments of mulberry fruit red pigment,mulberry juice,pl目的:研究外源维生素C对桑椹红色素、桑椹原汁、三华李原汁、火龙果原汁、玫瑰茄花萼提取液等种紫红色果汁色素的影响。