| 谷氨酸阴离子和晶种对晶体成核与生长的影响 |
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| 引用本文： | 张文会,云逢霖.谷氨酸阴离子和晶种对晶体成核与生长的影响[J].华南理工大学学报(自然科学版),1994,22(1):63-69. |
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| 作者姓名： | 张文会 云逢霖 |
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| 作者单位： | 华南理工大学生物工程研究所 |
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| 摘 要： | 研究了谷氨酸阴离子（Ｇ－）和晶种对其晶体二次成核与生长的影响．结果表明成核速率随晶种粒度和晶种量减少而减少；在高过饱和度时Ｇ－对成核有促进作用，而在低过饱和度时则有抑制作用；晶体生长速率随粒度减小而增大；Ｇ－对晶体生长有抑制作用；结晶时使用粒度小的晶种可得到粒度分布较均匀的晶体．
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| 关 键 词： | 谷氨酸 结晶 成核 阴离子 味精 |
EFFECTS OF ANIONS AND SEEDS OF L-GLUTAMIC ACID ON THE FORMATION AND GROWTH OF ITS SECONDARY NUCLEI |
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| Zhang Wenhui, Yan Fenglin, Yao Ruhua.EFFECTS OF ANIONS AND SEEDS OF L-GLUTAMIC ACID ON THE FORMATION AND GROWTH OF ITS SECONDARY NUCLEI[J].Journal of South China University of Technology(Natural Science Edition),1994,22(1):63-69. |
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| Authors: | Zhang Wenhui Yan Fenglin Yao Ruhua |
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| Abstract: | Nucleation and growth rates of secondary nuclei of L-glutamic acid are investigated when different concentration of its anion (G-) coexistand different size and quantity of seeds are added. The results show that thesecondary nucleation rates increase with the inerease of size and quantity ofseeds, and is suppressed by G- at lower supersaturation, and promoted athigher supersaturation. The growth rates of crystals decrease with theincrease of its size and concentration of G- coexisting. More uniform crystals are obtained when smaller size of seeds is added in the crystallization. |
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| Keywords: | s: glutamic acid nucleation crystal growth crystallization /secondary nucleation |
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