Analysis and Evaluation of Nutritional Quality and Health Function of Different Varieties of Vegetable Sweet Potato
Geng Xiaoyue
Dai Xibin
Dong Wei
Wang Wei
Hou Hui
Zhang Qiaofeng
Su Han
Xu Zhen
Cao Qinghe
Abstract：In order to clarify the nutritional compositions of different varieties of vegetable sweet potato and evaluate their health functions,the contents of total phenols,flavonoids,polysaccharides,carotenoids,chlorogenic acid,dietary fiber,nitrate,nitrite,soluble sugar and starch and the total antioxidant capacity of 13 vegetable sweet potato varieties were determined in this study.Correlation analysis and principal component analysis were used to evaluate the health functions of different vegetable sweet potato varieties,and the 13 veg-etable sweet potato varieties were classified by cluster analysis.The results showed that the coefficient of varia-tion for the 11 indicators of the 13 vegetable sweet potato varieties ranged from 4.99％to 55.78％.Some indi-cators had significant or extremely significant correlations,with 6 couples showing significant correlation and 5 couples showing extremely significant correlation.Four principal components were extracted by principal com-ponent analysis with the contribution rates of 40.25％,15.54％,13.86％and 10.87％,respectively,which could represent 80.51％of the original indicators information.The comprehensive evaluation analysis results showed that the comprehensive score(F value)of the 13 varieties ranged from 0.162 to 0.622,and three vari-eties of Tainong 71(0.622),Gancaishu 2(0.581)and Ningcaishu 5(0.567)had higher F values,which had good health function.
Keywords：Vegetable sweet potatoNutritional functional componentsHealth functionPrincipal com-ponent analysisComprehensive evaluation
Publication Date：2026-03-30
Online Publishing Date：2026-05-22(First online date of this platform, not the publication date of the document)
Pages：7( 45-51 )