Study and Utilization of Sweetpotato with High Anthocyanin

The anthocyanin content of sweetpotato varieties was decided mostly by genotype. It was also affected by the environment conditions. In generally, there was a rapid increasing phase of anthocyanin accumulation during the 3rd to 6th week after transplanting. And then, the anthocyanin increased slowly. The concentration of anthocyanin in outer portion of roots was higher than that in inner ones. Anthocyanin content increased as decreasing of the average soil temperature during root enlargement. Sweetpotato anthocyanin was stable to the environments of light and heat. A series of products had been made out by use of purple-fleshed sweetpotato.