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  • Title: [Study on ultrasonic extraction techniques of flavonoids in Chrysanthemum morifolium].
    Author: Yin H, Hu YZ, Yang XJ, Sheng J, Wang Z.
    Journal: Zhongguo Zhong Yao Za Zhi; 2004 May; 29(5):424-5. PubMed ID: 15706893.
    Abstract:
    OBJECTIVE: To optimize the ultrasonic extraction condition for flavonoids from Chrysanthemum morifolium. METHOD: The extraction rate of flavonoids optimized condition (ethanol concentration, ultrasonic time, solvent quantity and extraction times) was determined by orthogonal design. UV-Spectrophotometry was used for the determination. RESULT: The order of factors to affect the flavonoid extraction was ethanol concentration > extraction times > solvent quantity > ultrasonic time. CONCLUSION: The optimum ultrasonic extractions were: A2 B2 C3 D3. Compared with traditional extraction, ultraction method can save time, be easy to operate, improve extraction rates and need no heating.
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