Tea polyphenol is the major physiological active component in tea, and it is generally manufactured by liquid-liquid extraction technology, using ethyl acetate as solvent from water extract of tea.
茶多酚是茶叶中主要生理活性物质，其制造方法一般采用液-液萃取工艺，以醋酸乙酯为溶剂，从茶汤中萃取出茶多酚。
Saponins is an important active component in plants. In this paper the medicinal function, extraction and separation, chemical structure elucidation of saponins were briefly discussed.
综述了皂甙的药理活性、提取分离和结构鉴定方法，旨在对皂甙应用提供参考。
Conclusion This research can provide evidence for the extraction of active component from Herba Epimedii I...
结论本研究可为工业大生产中合理地提取淫羊藿活性成分提供参考。
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