Conclusion: the preparing method of high speed centrifugation could replace the normal preparing method of water ethanol method.
结论：高速离心法可取代常规水醇制备方法。
Objective: To compare the different influences for preparing technology resulted from respective preparing method of high speed centrifugation and water ethanol method.
目的：比较高速离心方法与常规水醇方法对制备工艺的影响。
Method By using extractor, water and ethanol were used as medium respectively.
方法用索氏提取器分别以水、乙醇为浸提介质。
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