Abstract: We analyzed the nutritional components of black mulberry fruit(Morus alba L.) in Shanxi Province, China. It was found to contain VC, VE, β-caroten, rutin, myricetin, morin, quercetin, Fe, Mn, Zn,Se, et al. The juice was extracted from the black mulberry fruit. After being fed on the diet with 10% fresh mulberry fruits or juice for 8 weeks, male Wistar rats showed significantly reduced MDA and increased SOD and GSH-Px in blood and liver (p<0.05～0.01). and decreased the lipofuscin in liver(p<0.05～0.01). Fresh black mulberry fruits or juice could prolong the life span and improve the flying ability of Drosophila melanogaster (p<0.05～0.01). The results showed that the mulberry fruit has evident antioxidation effects. It is worth further researching and exploiting.

Key words: black mulberry fruit(Morus alba L.), nutritional components, anti-oxidation, rats, Drosophila melanogaster