摘要
[目的]研究通过酸碱处理的方法初步纯化白花泡桐叶提取液中熊果酸的工艺。[方法]采用HPLC测定熊果酸含量,利用单因素试验及正交试验考察碱化pH值、酸化pH值、稀释倍数对熊果酸转移率和纯度的影响。[结果]白花泡桐叶中熊果酸的初步纯化最佳工艺为:碱化pH=10、酸化pH=4、稀释倍数为1.5倍;在此工艺条件下,转移率达到了90.23%,纯度也达到了26.48%。[结论]该工艺简单易行,为泡桐叶中熊果酸的纯化找到了一条适合大工业生产的路线。
[Objective] The study aimed to explore the technique of purifying urasolic acid in the extract of Paulownia fortunei leaves by acid-alkali method.[Method] HPLC was adopted to measure the content of ursolic.The effect of pH value of basification and acidification,dilution factor on the transfer ratio and purity of ursolic acid were tested by the single factor exploration and orthogonal design.[Result] The optimum condition to purify ursolic acid in P.fortunei leaves is under the pH 10 of basification and pH 4 of acidification and 1.5 of dilution factor,the transfer rate and purity are up to 90.23%,26.48%,respectively.[Conclusion] Purifying by this technique is simple and feasible,which enables mass industrial production to purify ursolic acid in P.fortunei leaves.
出处
《安徽农业科学》
CAS
2013年第8期3371-3373,共3页
Journal of Anhui Agricultural Sciences
关键词
酸碱处理
白花泡桐叶
熊果酸
纯化
Acid-alkali method
Leaves of Paulownia fortunei(Seem.) Hemsl
Ursolic acid
Purification
