| L-谷氨酸对L-苯丙氨酸的热力学及晶型转化的影响 |
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| 引用本文： | 张金彦,曹晓雪,吉绍长,蓝平,廖安平. L-谷氨酸对L-苯丙氨酸的热力学及晶型转化的影响[J]. 科学技术与工程, 2017, 17(33) |
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| 作者姓名： | 张金彦 曹晓雪 吉绍长 蓝平 廖安平 |
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| 作者单位： | 广西民族大学化学化工学院,广西民族大学化学化工学院,广西民族大学化学化工学院,广西民族大学化学化工学院,广西民族大学化学化工学院 |
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| 基金项目： | 国家自然(21606056),广西自然(2014GXNSFBA118037),广西民族大学相思湖创新团队项目(2016),广西民族大学项目(2014MDQD015,2014MDYB027) |
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| 摘 要： | 采用静态法测定了L-谷氨酸对L-苯丙氨酸热力学的影响,并应用常用的方程进行了拟合。结果表明,L-谷氨酸的加入增大了L-苯丙氨酸在水中的溶解度。考察了L-谷氨酸对L-苯丙氨酸晶型转化过程的影响,L-谷氨酸的加入可抑制其晶型转化。同时,应用Langmuir模型对晶型转化数据进行了拟合,拟合结果良好,可用于相关数据预测。
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| 关 键 词： | L-苯丙氨酸 晶型转化 L-谷氨酸 添加剂 溶解度 |
| 收稿时间： | 2017-04-17 |
| 修稿时间： | 2017-05-27 |
Effect of L-glutamtic acid Solubility and transformation behavior of L-phenylalanine anhydrate |
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| Jinyan Zhang,Xiaoxue Cao,Shaochang Ji,Ping Lan and Anping Liao. Effect of L-glutamtic acid Solubility and transformation behavior of L-phenylalanine anhydrate[J]. Science Technology and Engineering, 2017, 17(33) |
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| Authors: | Jinyan Zhang Xiaoxue Cao Shaochang Ji Ping Lan Anping Liao |
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| Abstract: | The solubility of L-phenylalanine in water with amino acid additives was experimentally studied by an analytical method. The data obtained were correlated by a semiempirical equation. Results showed that the solubility of L-phenylalanine increased with increasing temperature. L-glutamic acid added can markedly increase the solubility power compared with pure water.The dependence of the L-phenylalanine anhydrate/monohydrate transformation behavior in the presence of L-glutamic acid , as a typical additive, is discussed. Langmuir model for transformation kinetics was applied to quantitatively express the observed experimental dependence between the transformation time and additive content. |
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| Keywords: | L-phenylalanine, transformation behavior, L-glutamic acid, additives |
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