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  • Title: [Extraction of ecdysterone from Stemmacantha uniflora].
    Author: Chen L, Wu H, Li Y, Shuai Q.
    Journal: Zhong Yao Cai; 2002 Mar; 25(3):195-7. PubMed ID: 12583166.
    Abstract:
    OBJECTIVE: To optimize the conditions for the extraction of ecdysterone from Stemmacantha uniflora. METHODS: Conditions for the extraction were studied by three different methods as guided by the content of ecdysterone and solid material that present in the extract. RESULTS: Methanol was the best solvent, water the second, ethanol was greatly effected by concentration. Ultrasonic extraction had a good efficiency with short time. The time of cool extraction was too long, its efficiency was inferior to the other methods. CONCLUSION: The best methods for the extraction of ecdysterone from Stemmacantha uniflora was methanol reflux extraction.
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