4Izabela Konczak Islam,Makoto Yoshimoto,et al.Potential Chemo preventive Properties of Anthocyanin - Rich Aqueous Extracts from In Vitro Produced Tissue of Sweetpotato[J].J.Agric Food Chem.,2003,51,5916 - 5922.
5Philpott M,Gould KS,Lim C,Ferguson LR.In situ and in vitro antioxidant activity of sweetpotato anthocyanins[J] .J Agric Food Chem.,2004,52(6) :1511 - 1513.