Study on the Content of Antioxidant Substances and Antioxidant Activity of Colored Potato Tubers at Dif ferent Storage Periods
The contents of antioxidant substances and their antioxidant activities in red rose,purple rose and green potato No.9 were measured in red rose,purple rose and green potato No.9 color potatoes during different storage periods.The results showed that the antioxidant activity of potato gradually decreased with the extension of storage time,and there were differences among varieties,and the antioxidant activity of purple rose was higher.Antioxidant active substances such as total phenols,polyphenols and anthocyanins in colored potatoes showed a downward trend with the extension of storage time.The vitamin C content first increased and then decreased.Considering the content of antioxidant substances and their antioxidant activity,it was found that the content of anthocyanins played an important role in the antioxidant activity of potato.
color potatoantioxidant activityanthocyaninchlorogenic acid
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