Abstract
In this paper, three varieties of Elaeagnus conferta Roxb fruits prepared by ultrasonic-assisted extraction from a subtropical region southwest of China were utilized as raw materials to investigate their phenolic profiles, antioxidant activities, and protective effects on injured human umbilical vein endothelial cells (HUVECs). The ultra performance liquid chromatography-electrospray ionization tandem mass spectrometry (UPLC-ESI-MS/MS) findings revealed that fifteen substances, including seven phenolic acids, seven flavonoids, and one gallic acid derivative, were discovered. The dihydromyricetin, ellagic acid, gallic acid were the predominant phenolic compounds in all E.conferta fruits. These E.conferta fruits extracts shown excellent antioxidant activity varied from 2.258±0.03~7.844±0.39 μM Trolox/g and protective effect on HUVECs injured by H2O2 through decrease the level of ROS, MDA, LDH and enhance the SOD level. These finding indicate that E.conferta is a valuable source of high-capacity antioxidants that might be used as an alternative material for food industries.
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