Abstract:In order to investigate the nutritional components and antioxidant activity of taro from different regions，compare differences among taro varieties，and evaluate the nutritional characteristics of Lipu taro，seven types of taro，including Lipu taro，Guangxi taro，Guangdong taro，Shandong taro，Fujian taro，Fenghua taro，and Jinhua taro，were studied. The nutritional components，mineral elements，and vitamin contents in taro were determined，and the relationship between polyphenol content and antioxidant activity was analyzed. The results showed that significant differences existed in nutritional components and polyphenols′ antioxidant activity among taro from different regions. Lipu taro had relatively high contents of magnesium，vitamin C，and polyphenols. The magnesium，vitamin C，and polyphenol contents were （1 489±36） mg/kg，（12.60±0.10） mg/100 g，and 93.4 mg/100 g，respectively. The antioxidant activity results showed that the 1，1-diphenyl-2-picrylhydrazyl （DPPH） free radical scavenging rate of polyphenols in Lipu taro was 55.2%，and the 2，2-benzazobis （3-ethyl-benzothiazole-6-sulfonic acid） diammonium salt （ABTS） cationic free radical scavenging rate was 52.4%. Compared with taro from other regions，Lipu taro exhibited higher vitamin C and polyphenol contents，and its polyphenol antioxidant activity was at a relatively high level.