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- Enzymatic esterification for ethyl lactate synthesis in acid and alcohol inhibition 双底物抑制下脂肪酶催化合成乳酸乙酯的研究
- acid and alcohol inhibition 双底物抑制
- The affection of the amount of catalysis, reaction time, the ratio of hexanoic acid and alcohol was discussed. 研究了催化剂用量,反应时间,酸醇比,带水剂用量等对酯化反应的影响。
- According to the results and data reported, it was given that the catalysis activity of iodine in acid and alcohol esterfication is not high. 将实验结果与文献数据综合分析,得出了碘作为催化剂在酸醇直接酯化反应中的催化活性不高。
- The effect of acid and alcohol mole ratio, the amount of vitamin C catalyst and reaction time on the yield of Nipagin esters was investigated. 考察了酸醇摩尔比,催化剂用量,反应时间等对酯收率的影响。
- According to the results and data reported,it was given that the catalysis activity of iodine in acid and alcohol esterfication is not high. 将实验结果与文献数据综合分析,得出了碘作为催化剂在酸醇直接酯化反应中的催化活性不高。
- Objective: To research F value in solution of salicylic acid and alcohol underdifferent temperature and concentration by dioptre analysis. 目的:应用水杨酸醇溶液折光分析法探讨不同温度、不同浓度范围内的F值。
- Esterification is a common organic reaction,usually with the catalysis of acid carboxylic acid and alcohol produce ester. 酯化反应是常见的有机反应,通常是在酸催化作用下由羧酸与醇反应生成酯。
- Abstract: Objective: To research F value in solution of salicylic acid and alcohol under different temperature and concentration by dioptre analysis. 摘 要: 目的:应用水杨酸醇溶液折光分析法探讨不同温度、不同浓度范围内的F值。
- It could be concluded: Immobile lipase from Antarctica had high catalytic activity to esterification reaction of long-chain unsaturated fatty acid and alcohol,and its activity was improved as carbon length of fatty acid was increased. 结果表明,固定化南极洲假丝酵母脂肪酶对长链脂肪酸、脂肪醇的酯化反应有很好的催化效果,随脂肪酸碳链长度增加,脂肪酶的催化活力提高;
- Organic acids in koumiss had apparent inhibitory effect to bacillus subtilis, in them, lactic acid was most important whereas acetic acid and alcohol had synergistic effect. 研究结果表明,有机酸对枯草芽胞杆菌有抑菌作用,其中乳酸起主要作用,醋酸和酒精起增效作用。
- Nitrile material, interlock lining, good resistant to oil, grease, acids and alcohol. 丁腈材质,棉毛布衬里,对油、油脂、酸和醇等有良好的防护性能。
- Organic acids in koumiss had apparent inhibitory effect to bacillus subtilis,in them,lactic acid was most important whereas acetic acid and alcohol had synergistic effect. 研究结果表明,有机酸对枯草芽胞杆菌有抑菌作用,其中乳酸起主要作用,醋酸和酒精起增效作用。
- The coating was a mixture of shellac and alcohol. 这种涂料是虫胶与酒精的混合物。
- Putting an acid and a metal together causes a reaction. 将酸和金属放在一起会引起反应。
- Water and alcohol may mingle with each other in any proportions. 水和酒精可按任何比率互相混合。
- Assess medications and alcohol intake. 评估药物和酒精服用情况。
- And alcohol can not be separated by distillation. 水和酒精不可能用蒸馏的方法分离。
- In this paper it have bee introduced that the research achievement on synthesis of esters by heteropolyacid catalyzed carboxylic acid and alcohols in recent years. 介绍了近年来杂多酸及其盐作为酸催化剂在催化酸与醇反应合成酯的研究成果。
- You need quit smoking and alcohol, lose weight. 您应该忌烟酒,减轻体重。