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Position: Home > Articles > Determination of Equilibrium Solubility and Apparent Oil/Water Partition Coefficient of Daidzein By HPLC Journal of Anhui Agricultural Sciences 2009,37 (10) 4367-4368

HPLC法测定大豆苷元的平衡溶解度和表观油水分配系数

作  者:
于秀珍;何珺;钱一鑫;李洪庆
单  位:
贵州大学贵州省生化工程中心
关键词:
大豆苷元;平衡溶解度;表观油水分配系数;高效液相色谱法
摘  要:
[目的]测定大豆苷元在各种溶剂中的平衡溶解度以及在正辛醇-水和正辛醇-缓冲液体系中的表观油水分配系数。[方法]采用HPLC法测定大豆苷元的浓度,采用摇瓶法测定大豆苷元的表观油水分配系数。[结果]25℃大豆苷元在水中的平衡溶解度为0.89mg/L。在碱性磷酸盐缓冲液中的平衡溶解度较酸性磷酸盐缓冲液中高;大豆苷元的表观油水分配系数Papp为191.3(1gPapp=2.28)。[结论]大豆苷元的水溶性较差,提高其口服制剂的溶出度有利于提高其生物利用度。
译  名:
Determination of Equilibrium Solubility and Apparent Oil/Water Partition Coefficient of Daidzein By HPLC
作  者:
YU Xiu-zhen et al(Research Center of Biochemistry Engineering of Guizhou Province,Guizhou University,Guiyang,Guizhou 550025)
关键词:
Daidzein;Equilibrium solubility;Apparent Oil/Water partition coefficient;HPLC
摘  要:
[Objective] The study aims to determine the equilibrium solubility of Daidzein in various solvents and its apparent oil/water partition coefficients for the n-octanol-water/ buffer solution systems.[Method] The concentration of daidzein is determined by HPLC,apparent oil/water partition coefficient is determined by shaking flask method.[Result] The equilibrium solubility of daidzein in water is 0.89 mg/ L at 25 ℃ and higher in alkaline phosphate buffer than in others.Papp of Daidzein is 191.3(1gPapp=2.28).[Conclusion] Water solubility of Daidzein is bad,increasing the dissolution rate of Daidzein may have the possibility to enhance its bioavailability.

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