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Determination of Luteolin-7-O-β-D-glucoside and cosmosiin in Humulus scandens in different seasons
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DOI   10.11656/j.issn.1672-1519.2010.01.34
Key Words   Humulus scandens;Luteolin-7-O-β-D-glucoside;cosmosiin,content determination;season
Author NameAffiliation
CHEN Zai-xing The Pharmacy College of Chinese Medical University, Shenyang 110001, China 
CHEN Jia-qi The Pharmacy College of Chinese Medical University, Shenyang 110001, China 
ZHU Xu The Pharmacy College of Chinese Medical University, Shenyang 110001, China 
王琳 The Pharmacy College of Chinese Medical University, Shenyang 110001, China 
时牛 The Pharmacy College of Chinese Medical University, Shenyang 110001, China 
孟繁浩 The Pharmacy College of Chinese Medical University, Shenyang 110001, China 
Abstract
    [Objective] To determine the content of Luteolin-7-O-β-D-glucoside and cosmosiin in Humulus scandens.[Methods] The content of humulus by Soxhlet was extracted and using high-performance liquid chromatography (HPLC) Humulus scandens in Luteolin7-O-β-D-glucoside and cosmosiin content were determined.The column was kromasilC18 and the mobile phase was methanol-0.2% phosphoric acid (45:55),the flow rate was set at 1.0 mL/min,the column temperature was 35 ℃,and the UV detector was set at 350 nm.[Results] Luteolin-7-O-β-D-glucoside content showed a good linear relationship within 0.05~0.40 μg (r=0.9997),the precision RSD= 2.06%,and the average recovery was 99.3%,RSD was 2.8%;cosmosiin content showed a good linear relationship within 0.072~0.36 μg (r=0.999 9),the precision RSD=1.73%,and the average recovery was 100.2%,RSD was 2.7%.The content of Luteolin-7-O-β-D-glucoside was the highest in July and August,and the cosmos was the highest in June.[Conclusion] The method is simple,sensitive,stable,reliable,and it can be used in the determination of Humulus scandens luteolin-7-O-β-D-glucosidase and the cosmos by HPLC.The appropriate harvesting season of Humulus scandens is from June to August.

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