JOURNAL OF NANJING FORESTRY UNIVERSITY ›› 2007, Vol. 31 ›› Issue (03): 34-38.doi: 10.3969/j.jssn.1000-2006.2007.03.007

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Comparative Study on the Contents of Flavonoids and Lactones in Ginkgo Pollen from Different Regions

WANG Guo-xia, CAO Fu-liang*, WANG Gui-bin, ZHANG Wang-xiang   

  1. College of Forest Resources and Environment Nanjing Forestry University, Nanjing 210037, China
  • Online:2007-06-18 Published:2007-06-18

Abstract: The contents of flavonoids and lactones in ginkgo pollen over one-hundred-years-old male ginkgo trees from 15 different regions were analysized by HPLC. The results were as follows: the average content of total flavonoids of ginkgo pollen was 20.44mg/g. The component of lactones firstly detected from ginkgo pollen was ginkolide A, and its average content was 2.22mg/g. Correlation analyses showed that the contents of flavonoids and lactones from ginkgo pollen in different regions didn’t remarkably correlate with climatic and geographical factors. Chongqing-O1, Guangde-O1, Beijing-O1, Kangxian--O1, were pri2 marily selected for selecting superior-individual and establishing pollen-producing plantation of ginkgo.

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