| DL-胱氨酸的制备与探讨 |
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| 引用本文： | 鲁伟.DL-胱氨酸的制备与探讨[J].氨基酸和生物资源,2010,32(3):49-51. |
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| 作者姓名： | 鲁伟 |
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| 作者单位： | 武汉大学生命科学学院,湖北武汉,430072 |
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| 摘 要： | 采用L-胱氨酸为原料,以浓硫酸为消旋剂,在消旋温度为130~150℃、L-胱氨酸和硫酸的摩尔比为1:8的条件下,经过消旋转型、水解、中和、结晶等步骤,可获得平均收率达到62.02%、消旋率100%的DL-胱氨酸,其主要质量指标均达到日本理化株式会社的产品质量标准。
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| 关 键 词： | L-胱氨酸 DL-胱氨酸 消旋 收率 |
DL-Cystine Preparation and Research |
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| LU Wei.DL-Cystine Preparation and Research[J].Amino Acids & Biotic Resources,2010,32(3):49-51. |
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| Authors: | LU Wei |
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| Institution: | LU Wei(College of Life Sciences,Wuhan University,Wuhan,430072,China) |
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| Abstract: | In this study,DL-cystine with racemic rate of 100% was prepared by the processes such as racemization,hydrolyzation and crystallization from L-cystine.Sulfuric acid(L-cystine: Sulfuric acid=1:8) was used as racemization reagent,and the reaction temperature was about 130-150℃.The recovery rate of the cystine was about 62.02% and the main quality indexes reached the standard of Nihon Rika Co.,Ltd. |
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| Keywords: | L-cystine DL-cystine racemization productivity |
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