Studies on the determination and distribution of total flavonoids of Cyclocarya paliurus vegetative organs.

The determination and distribution of total flavonoids of Cyclocarya paliurus vegetative organs from different altitudes,different origins,different months were studied in this study.The results indicated that the total flavonoids of Cyclocarya paliurus root and stem form different altitudes increased firstly,then decreased with the altitude increasing,samples form 690 m showed the highest content of total flavonoids,the highest in root was 67.818 4 mg/g,the highest in stem was 51.254 7 mg/g.The total flavonoids of leaves changed in sawtooth form with altitude increasing,samples form 915 m showed the highest content of total flavonoids,it was 46.930 2 mg/g.The contents of total flavonoids in the root and leaf of Cyclocarya paliurus from different places differed from each other.Samples from Jing'an showed the highest content both in the root and leaf.The highest in root was 51.574 5 mg/g,the highest in leaf was 44.676 1 mg/g.Samples from Xiushui showed the lowest content both in the root and leaf.The lowest in the root was 51.574 5 mg/g,the lowest in the leaf was 33.721 4 mg/g.There was no significant difference in the total flavonoids contents of stems of Cyclocarya paliurus from different places.Difference in total flavonoids content was observed in the leaves sampled in different months.But the obvious regularity was not found in this experiment,samples picked in July showed the highest total flavonoids content,which was 49.347mg/g.