Comparative analysis of chemical constituents in hawthorn leaves from different sources
We identified and analyzed the components and chemical constituents of hawthorn leaves of Crataegus pinnatifida Bge. (wild) and C. pinnatifida Bge. var major NE Br (cultivated) by using ultra high-performance liquid chromatography and quadrupole time-of-flight mass spectrometry (UHPLC-Q-TOF/MSE) combined with UNIFI data analysis platform and multivariate statistics. Fifty-eight chemical compounds were identified, including organic acids, flavonoids, triterpenoic acids, monoterpenes and sesquiterpenoids; among them, terpenoid content was the most abundant. Principal component analysis (PCA)
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