目的：确定毛泡桐中乌索酸的最佳超声提取工艺条件。
Objective:To optimize the ultrasonic extraction for ursolic acid from Paulownia tomentosa(Thunb.
方法：采用滴制法制备乌索酸滴丸。
Methods: Ursolic acid dropping pills were prepared by dropping method.
目的建立RP-HPLC测定乌骨藤药材中绿原酸含量的方法。
Objective To establish the method of assaying chlorogenic acid in glaucescent fissistigma root with RP-HPLC.
方法：采用滴制法制备乌索酸滴丸。
METHODS Ursolic acid dropping pills were prepared by dropping method.
目的：考察乌索酸对原单核白血病细胞株THP-1的分化诱导作用。
Aim:To investigate the differentiation-inducing effect of ursolic acid(UA) on promonocytic leukemia cell line THP-1.
结论：本工艺先进合理、实用可行，有利于乌索酸的富集和纯化，产品的安全性高，具备了工业试验生产高纯度乌索酸的技术条件。
Conclusion: This technology is advanced and rational, practical and feasible. It is applicable to gather and purification of ursolic acid. The product saf…
结论：本工艺先进合理、实用可行，有利于乌索酸的富集和纯化，产品的安全性高，具备了工业试验生产高纯度乌索酸的技术条件。
Conclusion: This technology is advanced and rational, practical and feasible. It is applicable to gather and purification of ursolic acid. The product saf…
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