Objective: To study the main components of polyphenols from the root of Adina rubelle Hance.Methods: Water extract from the root of Adina rubelle Hance was extracted with acetic ester,then separated by silicage column with differentiation by thin-layer chromatography.Thirdly,the purified fraction was analyzed by GC-MS.Results: Two components were purified,they were catechins compounds.Conclusion: Polyphenols from the root of Adina rubelle Hance were mainly consisted of catechins.

Objective: To establish a non-derivatization-PriME-ultra-high performance liquid chromatography-tandem mass spectrometry method for simultaneou determination of 9 kinds of biogenic amines in yellow rice wine. Methods: Yellow rice wine samples were purified by PriME HLB solid phase extraction column purification, separated using Waters XSelect HSS T3 column (150 mm×2.1 mm, 3 μm), and qualified using multiple reaction monitoring mode, electrospray ion source positive ion and external standard method. Results: There was a good linear relationship for the 9 kinds of biogenic amines at 2.0 to 500.0 μg/L (r≥0.996). The limit of detection was 0.1 to 0.2 mg/L, and the limit of quantitation was 0.3 to 0.6 mg/L. The spike recovery rate of 9 kinds of biogenic amines ranged from 83.5% to 108.6% at 0.1 and 1.0 mg/L, with relative standard deviations of 2.8% to 8.7%. Conclusion Non-derivation-prime ultra-high performance liquid chromatography-tandem mass spectrometry can be used for the rapid quantitative detection of biogenic amines in yellow rice wine.

This review summarized the research status on DNA molecular identification of plants in the genus Chrysanthemum. Some case studies on representative DNA molecular identification techniques, which included ge-nomic in situ hybridization (GISH), DNA molecular markers and DNA barcoding, were described. Simultaneously, the merits, demerits and development of the techniques were discussed. The above work provides evidence for the identi-fication and resource utilization of plants in the genus Chrysanthemum.