Abstract: Abstract：The accumulation and variation of anthocyanins components of colored-flesh potato tubers were investigated during tuber development and storage conditions. The results showed that content of anthocyanins and the time points of anthocyanin synthesis were varied in different genotypes during the tuber development. The time points of anthocyanin syntheses beginning and reaching the highest concentration were earlier in genotypes with dark color flesh than that of light color flesh potatoes，and the variation of anthocyanin components was mainly corresponding to the pathway of anthocyanin synthesis in all genotypes. The anthocyanin content showed decreased trend during storage process and no significantly differences were found when tubers were stored under normal and low temperature condition. In addition，the determination of activity of antioxidant indicated that anthocyanins of all colored-flesh potatogenotypes had certain ability to eliminate DPPH· and ABTS⁺ as well as the ability to reduce Fe³⁺，but theantioxidant ability of anthocyanins was significantly varied among genotypes.

Key words: colored-flesh potato, anthocyanin, tuber development stage, anthocyanin content variation, antioxidant activity