目的 優(yōu)化葛根藥材中葛根素的提取工藝。方法 采用乙醇為溶媒提取葛根藥材，以葛根素轉(zhuǎn)移率和出膏率為指標(biāo)，運用正交試驗及多元回歸分析多指標(biāo)綜合優(yōu)化葛根藥材的提取條件。結(jié)果 葛根提取的最佳條件為：90%乙醇提取兩次，每次6倍量乙醇，提取時間為2 h。葛根素的轉(zhuǎn)移率為89.85%，浸膏得率為14.92%。結(jié)論 該數(shù)據(jù)處理方法優(yōu)化葛根提取工藝結(jié)果準(zhǔn)確、高效，具有一定的推廣價值。

Objective To seek the best way for extracting puerarin from Puerariae Radix. Methods Puerariae Radix was extracted by ethanol, using the transfer rate of puerarin and extract rate as indexes. Based on the orthogonal test combined with multi-variable regression analysis to make sure the best way for extracting puerarin from Puerariae Radix. Results Puerariae Radix should be extracted by 90% ethanol twice with six times of ethanol and 2 h each time. The transfer rate of puerarin was 89.85% and extract rate was 14.92%. Conclusion The analytical method of the orthogonal data is accurate and efficient to optimize the preparation of puerarin from Puerariae Radix.