| The methanol extract of peanut oil was detected by ultra performance liquid chromatography-tandem quadrupole time-of-flight mass spectrometry (UPLC/Q-TOF MS/MS)to analyze the component in peanut oil,and using the secondary mass spectrometry and standard products were used to determine the component. The results showed that in positive ion mode, 86 compounds were detected, and 30 compounds were identified. Among them, erucic acid, palmitamide, stearamide, oleamide and 11Z-docosadienoic acid were the known components in peanut oil, and other 26 substances including linoleylethanolamine, linoleamide, sphingosine, N-oleylethanolamine, octacosatetraenoic acid, and cis-4-sebacic acid were detected for the first time. In negative ion mode, 27 compounds were detected and 15 compounds were identified in peanut oil, including 7 common fatty acids. Five fatty acids including (Z) - 13-oxy-9-octadecenoic acid, ricinoleic acid, limonenic acid, 13-hydroxyoctadecanoic acid and 2 (R)- hydroxyalginic acid and 3 other substances were first detected in peanuts oil. |
