Abstract:By measuring the nutritional indicator content and antioxidant capacity，employing Pearson correlation analysis，principal component analysis，and cluster analysis，the nutritional quality of eight varieties of edible citrus peels was comprehensively evaluated，elucidating the correlation between nutritional indicators and antioxidant capacity. The results showed that these eight edible citrus peels had high nutritional value and strong antioxidant capacity. The total flavonoid content of the samples was positively correlated with the clearance rate of 1，1-diphenyl-2-pyridyl hydrazine（DPPH）free radicals，with a correlation coefficient of 0.96.The results of principal component analysis showed minimal differences among the eight edible citrus peels which were categorized into two major classes.The comprehensive evaluation model indicated that orange citrus peels exhibited superior nutritional quality compared with broad-skinned citrus peels，with blood orange（Citrus×aurantium“Tarocco”）citrus peels having the highest comprehensive nutritional quality score.The integrated results indicated that among the eight citrus peels，blood orange peel had the best nutritional value and antioxidant activity.