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利用L16(44)正交试验设计和Duncan法检验,确立了南天竹叶总黄酮的最佳提取条件及其提取率。结果表明,用1∶40(g/mL)的60%乙醇水溶液,提取温度为50℃,提取时间为3h,提取效率较好。最佳工艺条件下黄酮提取率为4.6330%。
Using L16 (44) orthogonal test design and Duncan test, the optimum extraction condition and extraction rate of total flavonoids from Nandina orientalis leaves were established. The results showed that with a 1:40 (g/mL) 60% ethanol solution, the extraction temperature was 50 °C and the extraction time was 3 h. The extraction efficiency was good. The extraction rate of flavonoids under the optimum conditions was 4.6330%.