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Separation and purification of puerarin with solvent extraction

机译:溶剂萃取法分离纯化葛根素

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摘要

The partitioning behavior of puerarin from extract using n-butanol/water two-phase solvent system was investigated.The results showed that puerarin can be selectively separated from the hydrophilic impurities and the hydrophobic impurities by a double solvent extraction.It is advantageous to decrease the pH for the first solvent extraction of puerarin,whereas it may become favorable to increase the pH for the second solvent extraction.The partition coefficients of puerarin decrease as the initial concentration of puerarin increases.
机译:研究了正丁醇/水两相溶剂体系中葛根素的分配行为,结果表明,通过双溶剂萃取可以将葛根素选择性地从亲水性杂质和疏水性杂质中分离出来,有利于减少葛根素第一次溶剂萃取的pH值可能增加,而第二次溶剂萃取可能增加pH值。葛根素的分配系数随葛根素初始浓度的增加而降低。

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