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专业: 生物化学

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pengzulong: 金币+50, ★★★★★最佳答案, 很及时，非常感谢。 2014-04-24 16:44:37
greenhand_ku: SFL-EPI+1, 感谢热心翻译，欢迎常来本版交流指导！ 2014-05-02 10:11:33

Ampelopsis grossedentata is a kind of wild vine plant which is belong to grape vine snake genera，after chemical analysis，we know that this plant is rich in
flavonoids，in order to achieve making the best use of everything，it is very necessary to further study the best method of extracting total flavonoids from Ampelopsis grossedentata. At present，there is only Ethanol reflow used in extracting total flavonoids from Ampelopsis grossedentata in jianghua country， the review adopt Ethanol reflow，petroleum ether reflow added to ethanol ultrasonic，ethanol ultrasonic to extract flavonoids from Ampelopsis grossedentata in jianghua country，and then test the content of the flavonoid with a uv spectrophotometry. The results show that the ethanol ultrasonic extraction obtains the highest content of flavonoids. The conclusion offer certain theoretical parameters for the development of Ampelopsis grossedentata in jianghua country and industrialization.

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4楼2014-04-23 22:23:19

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pengzulong: 金币+30, ★★★★★最佳答案, 非常感谢 2014-04-24 16:44:56
greenhand_ku: SFL-EPI+1, 感谢热心应助，欢迎常来本版交流指导！ 2014-05-19 13:55:42

Ampelopsis grossedentata is a wild vine plant which belongs to the genus Ampelopsis Michx. It is rich in flavonoids according to chemical analysis. To make full use of such resource, it is greatly needed to optimize the extraction procedure of total flavonoids from Ampelopsis grossedentata. At present，Ethanol reflux extraction is the only method tested in the total flavonoids extraction from Ampelopsis grossedentata in Jianghua County. This work compared three extraction methods in Jianghua County, namely Ethanol reflux，petroleum ether reflux combined with ethanol ultrasonic extraction，or ethanol ultrasonic extraction alone. Afterwards, the flavonoid content was measured by UV spectrophotometry. As a result, the highest flavonoids yield was obtained in the ethanol ultrasonic extraction. The conclusion provides theoretical guidance for the exploitation of Ampelopsis grossedentata resource and its industrial production in Jianghua County.

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5楼2014-04-24 11:51:00

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