Comparative metabolomics analysis of pericarp from four varieties of Maxim.

A qualitative and quantitative analysis of metabolites was performed by metabolomics comparation on the pericarps of four varieties of Maxim. The as scion combined with three rootstock varieties of Maxim (YJ), July Maxim (QJ), and August Maxim (BJ), at the same time seedlings breeding were compared as control (MJ). A total of 1429 metabolites were identified in Maxim pericarps based on chromatography and mass spectrometry dual detection platform. While the metabolites between four varieties of varied, there was identified 31, 15, 7, 79, 42, 19 down-regulated and 55, 50, 13, 75, 43, 27 up-regulated differential metabolites between MJ and BJ, MJ and QJ, MJ and YJ, QJ and BJ, YJ and BJ, YJ and QJ. Meanwhile, the differential metabolites composition was distinct among various varieties of and dominant by phenolic compounds flavonoid and phenolic acids, especially highest in varieties July Maxim. Highlight A comparative metabolomics analyzed in four varieties of pericarp.Total 1429 metabolites were identified and mainly in flavonoid and phenolic acid.July and August Maxim has highest antioxidant capacity.The rootstock July Maxim was recommended in Loess Plateau.