Quality Comparison of Different Mulberry Varieties in Zhanjiang Region

The quality traits including anthocyanins, sugar components, soluble total sugar, TA, vitamin C, total flavonoids and total phenols in 17 mulberry germplasm varities were determined and analyzed by principal component and cluster analysis. The results showed that six anthocyanins were detected in 17 mulberry varieties, namely delphinidin, cyanidin, pelargonidin, petunidin, peonidin and mallvidin. Among these six anthocyanins, cyanidin was the most abudant, followed by delphinidin. Fructose and glucose were the major sugar components of mulberry. And there was a very significant positive correlation between the content of fructose and glucose. Principal component analysis showed that the content of delphinidin, cyanidin, pelargonidin, petunidin, mallvidin, total flavonoids and total phenol could be used as important indicators for the evaluation of nutritional value. Cluster analysis method was adopted to analyze the close relationship between different varieties and 3 groups were clustered based on the content of anthocyanins of mullberry.