摘要
为了研究豆甾醇在甲苯-乙醇二元溶剂中的溶解特性;采用动态法测定豆甾醇在甲苯-乙醇二元溶剂中的溶解度,并采用Appellant模型对豆甾醇溶解度与温度的关系进行拟合。实验结果表明在实验温度范围内,当二元溶剂中的甲苯体积分数相同时,豆甾醇的溶解度随着温度的升高而增加;在温度相同时,随着甲苯-乙醇二元溶剂中的甲苯体积分数的增加,豆甾醇的溶解度呈先增加后减小的趋势。当甲苯-乙醇二元溶剂中的甲苯体积分数为0.8时,豆甾醇的溶解度最大。采用Appellant模型对豆甾醇在甲苯-乙醇二元溶剂中溶解度与温度进行拟合,标准偏差小,精度高。
To study the dissolution characteristics of stigmasterol in toluene-ethanol solvent, the dynamic method was adopted to measure the solubility of stigmasterol in toluene-ethanol solvent, and the Appellant model was used to fit the relationship between the solubility of stigmasterol and temperature. The experimental results showed that, within the range of test temperature, the solubility of stigmasterol increases with the rise of temperature when the volume fraction of toluene remains the same;the solubility of stigmasterol increases first and then decreases subsequently with the increase of the volume fraction of toluene when the temperature remains the same. When the volume fraction of toluene of the toluene-ethanol solvent was equal to 0.8, the solubility of stigmasterol reached the peak level. The Appellant model can achieve a small standard deviation and high precision for fitting the relationship between the solubility of stigmasterol and temperature.
出处
《食品研究与开发》
CAS
北大核心
2014年第4期23-26,共4页
Food Research and Development
基金
2008年湖北省教育厅重点科研项目(基金编号:2008A23)
关键词
豆甾醇
甲苯-乙醇
溶解度
stigmasterol
toluene-ethanol
solubility
