| 马林,黄仲立,古练权.脂肪酶直接与硅胶混合催化无溶剂酯化反应的研究[J].分子催化,2003,(4):283-286 |
| 脂肪酶直接与硅胶混合催化无溶剂酯化反应的研究 |
| Research on the Solvent-free Esterification Catalyzed by Lipase Mixed with Silica Gel Directly |
| 修订日期：2003-03-24 |
| DOI： |
| 中文关键词: 脂肪酶 硅胶 无溶剂反应 酯化反应 |
| 英文关键词:Lipase,Silica gel,Solvent-free reaction,Esterification |
| 基金项目:国家自然科学基金(20032020)资助项目. |
| 马林 黄仲立 古练权 |
| [1]中山大学化学与化工学院，广东广州510275 [2]中山大学分析测试中心，广东广州510275 |
| 摘要点击次数: 1325 |
| 全文下载次数: 44 |
| 中文摘要: |
| 用硅胶作为载体，以癸酸与己醇的酯化反应作为模型，将脂肪酶和底物直接与硅胶混合，用于无溶剂体系催化酯化反应．结果表明体系中水的含量、底物用量比以及反应时间均对酯化反应有较大影响．在该体系中，脂肪酶催化酯合成反应的速度显著增加，反应2h后．转化率可以达到90％以上．而且沉积在硅胶上的脂肪酶可以反复使用多次． |
| 英文摘要: |
| In this article, using silica gel as carrier and esterification of decanoic acid with 1\|hexanol as model reaction, directly mixing lipase, substrates and silica gel, the esterification catalyzed by lipase in solvent\|free system was studied. The results showed that water content, amount of decanoic acid or 1\|hexanol and reaction time affected on the rate or yield of reaction. In this system, the rate of reaction catalyzed by lipase increased remarkably, and after 2~3 h, the yield of ester higher than 90% was achieved, the lipase deposited on silica can be reused many times. |
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