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  • 英語翻譯

    英語翻譯
    目的:從葡萄葉中提取總黃酮.方法:采用正交試驗(yàn)法研究葡萄葉總黃酮的最佳提取工藝條件,考察了乙醇濃度、回流溫度、回流時(shí)間及料液比四因素對(duì)葡萄葉總黃酮提取率的影響.結(jié)果:確立了葡萄葉總黃酮最佳提取條件為:45 %的乙醇為溶劑、液料比為1∶40、提取溫度為60 ℃、提取時(shí)間2h ,在最佳工藝條件下葡萄葉總黃酮含量為5.329mg/g.
    英語人氣:489 ℃時(shí)間:2020-06-17 13:55:15
    優(yōu)質(zhì)解答
    Objective: extracting total flavone from grape leaves. Method: the orthogonal test method study of grape leaf total flavonoids extraction process conditions, examines the ethanol concentration, reflux temperature, extraction time and ratio of solid to liquid four factors on grape leaf total flavone extraction rate influence. Results: establish grape leaf total flavone extraction conditions are as follows:45% ethanol as solvent, liquid ratio is 1:40, extraction temperature, extraction time602h, the optimum conditions of grape leaf total flavonoids content was 5 329mg / g.
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