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Bulletin of Botanical Research ›› 2016, Vol. 36 ›› Issue (3): 476-480.doi: 10.7525/j.issn.1673-5102.2016.03.023

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Seasonal Variation of Total Flavonoids from Crataegus pinnatifida and Correlation Analysis of Climatic Factors

LUO Meng1,2, HU Jiao-Yang1,2, SONG Zhuo-Yue1,2, MU Fan-Song1,2, YU Xue-Ying1,2, QIAO Qi1,2, RUAN Xin1,2, YANG Xuan1,2, ZU Yuan-Gang1,2   

  1. 1. Key Laboratory of Forest Plant Ecology, Ministry of Education, Northeast Forestry University, Harbin 150040;
    2. The Development and Utilization Collaborative Innovation Center of Forest Economic Resources, Harbin 150040
  • Received:2015-10-20 Online:2016-05-15 Published:2016-05-20

Abstract: We determined the contents of total flavonoids from Crataegus pinnatifida(C.pinnatifida) according to seasonal dynamics to find out the climate dominant climatic factors which influence the total flavonoids content(TFC) of C.pinnatifida. We studied the C.pinnatifida from May to October 2013, and used ultrasound-assisted extraction(UAE) to extract TFC from C.pinnatifida, and determined TFC by aluminum chloride colorimetric method. We analyzed the correlation between the TFC and climatic factors. TFC in different parts of C.pinnatifida had significant difference. TFC from C.pinnatifida leaves increase continuously and reach the highest point in September, with the value of 31.52 mg·g-1. A positive correlation was between the content of total flavonoid and temperature. September was the best harvest time for C.pinnatifida leaves. Our result provides a theoretical basis for development and utilization of total flavonoids in C.pinnatifida.

Key words: Crataegus pinnatifida, total flavonoids, climatic factors, seasonal variation, correlation

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