Selection of the Excellent Potato Clones Based on Total Polyphenol, Anthocyanin and Vitamin C Contents

摘要

To develop appropriate potato clones as functional food materials, we collected 35 potato breeding clones to analyze the contents of the total polyphenol, anthocyanin, and vitamin C with the 'Superior', 'Dasom valley', and 'Gogu valley' cultivars as controls. Based on our analysis great differences were observed in different potato clones. KPG16 had the highest content of total polyphenol at 105.08 mg center dot 100g(-1) FW; KPG13 had the highest content of anthocyanin at 4.78 mg center dot 100g(-1) FW; KPG20 had the highest content of vitamin C at 22.16 mg center dot 100g(-1) FW. Some clones had higher contents of the total polyphenol but lower levels of anthocyanin. Ultimately, potato clones showing relatively high indexes for all three compounds, could be considered as good functional food material. By equilibrium analysis of the contents of total polyphenol, anthocyanin, and vitamin C, KPG5 showed relatively higher contents, with values of 103.95, 3.15, 12.12 mg center dot 100g(-1) FW, respectively. Therefore, KPG5 was considered to be the best potato breeding clone in view of a functional potato breeding system.