This study was conducted to determine the antimutagenicity and anthocyanin content of extracts from “purple corn strain KPSC903”, both whole kernel (WG) and corn grit (CG), during six-month storage in nylon bags (N) or aluminum foil bags (F) under vacuum at 25ºC. Ethanol extract of WG showed 87% and 81% inhibitions of the mutagens Trp-P-1 and 2- aminoanthracene, respectively, whereas that from CG showed 84% and 64% inhibitions, respectively. Diethylether and water extracts showed less inhibition. During storage, both WG and CG decreased in antimutagenicity, while anthocyanin increased from 48.81 to 66.04 mg/100 g in WG and from 26.54 to 33.01 mg/100 g in CG. Correlation coefficients between % inhibition of Trp-P-1 and anthocyanin were -0.898, -0.869, -0.956, and -0.667 for WG in N, WG in F, CG in N, and CG in F. F retarded the loss of antimutagenicity of CG better than N.
