论文部分内容阅读
[Objective] To explore the effects of ethanol concentration on the extraction rate of gentiopicroside in RADIX GENTIANAE MACROPHYLLAE in Ningxia Liupan Mountain of China.[Method] Gentiopicroside content was detected in RADIX GENTIANAE MACROPHYLLAE by HPLC at room temperature.Effects of 45%,55%,65% and 75% ethanol on the extraction rate of gentiopicroside from RADIX GENTIANAE MACROPHYLLAE were compared.[Result] Extraction rates of gentiopicroside by 45%,55%,65% and 75% ethanol were 12.50%,13.26%,14.53% and 14.42%,respectively.When the ethanol concentration was 65%,extraction rate of gentiopicrosides from RADIX GENTIANAE MACROPHYLLAE was the highest.[Conclusion] Ethanol concentration had significant effects on the extraction rate of gentiopicrosides from RADIX GENTIANAE MACROPHYLLAE Ningxia Liupan Mountain of China.And 65% ethanol had the highest extraction rate.
[Objective] To explore the effects of ethanol concentration on the extraction rate of gentiopicroside in RADIX GENTIANAE MACROPHYLLAE in Ningxia Liupan Mountain of China. [Method] Gentiopicroside content was detected in RADIX GENTIANAE MACROPHYLLAE by HPLC at room temperature. Effects of 45%, 55 %, 65% and 75% ethanol on the extraction rate of gentiopicroside from RADIX GENTIANAE MACROPHYLLAE were compared. [Result] Extraction rates of gentiopicroside by 45%, 55%, 65% and 75% ethanol were 12.50%, 13.26%, 14.53% and 14.42%, respectively.When the ethanol concentration was 65%, extraction rate of gentiopicrosides from RADIX GENTIANAE MACROPHYLLAE was the highest. [Conclusion] Ethanol concentration had significant effects on the extraction rate of gentiopicrosides from RADIX GENTIANAE MACROPHYLLAE Ningxia Liupan Mountain of China. And 65% ethanol had the highest extraction rate.