Effects of thermal treatments on 10 major phenolics and their antioxidant contributions in Acer truncatum leaves and flowers.

ABSTRACT: This study aimed to investigate effects of thermal treatments on major phenolics and their antioxidant contributions in Acer truncatum leaves and flowers (ATL and ATF, respectively). With ultra performance liquid chromatography-diode array detector-quadrupole time-of-flight-mass spectrometer/mass spectrometer, phenolic compositions of ATF were first characterized and compared with those of ATL. An optimized high performance liquid chromatography fingerprint was then established, and 10 major phenolics existing in both ATL and ATF were quantified. Gallic acid derivatives and flavonol-3-O-glycosides were found to be their dominant phenolic constituents, with the former being key constituents which was affected by thermal treatments and further influencing the variations of total phenols. Mor

SUBMITTER: Yang L 

PROVIDER: S-EPMC6030319 | biostudies-literature | 2018 Jun

REPOSITORIES: biostudies-literature