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循环流化床反应器在麦芽糖月桂酸酯酶法合成中的应用

Application of fluidized reactor with recycling in the enzymatic synthesis of lauroyl maltose ester
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摘要 设计制作了循环流化床反应装置,在固定化脂肪酶催化下合成麦芽糖月桂酸酯。通过对床层膨胀比、平均停留时间以及糖酸比的研究,确定了最佳工艺条件为:月桂酸浓度300mmol/L,加酶量6g,以浓度为300mmol/L的月桂酸丙酮溶液作为循环流化液,流化床层膨胀比为1.1,物料进出流量为0.3mL/min,分子筛添加量为10g,此时48h后反应器产率达到54.7g/(L·d)。 The lauroyl maltose ester was synthesized in acetone with the Novozym 435 lipase as catalyst using a circulating fluidized bed reactor and the optimal conditions were confirmed as follows：concentration of lauric acid 300mmol/L,6g immbolized lipase,lauric acid concentration of 300mmol/L as expansion ratio of the fluidized bed 1.1,flow rate of feed solution 0.3mL/min. The productivity of this system could reach at 54.7g/（ L·d） after 48h.
作者 李攀 冯骉 张晓鸣 贾承胜
机构地区 江南大学食品学院
出处 《食品工业科技》 CAS CSCD 北大核心 2008年第11期216-218,共3页 Science and Technology of Food Industry
关键词 循环流化床 固定化脂肪酶 麦芽糖月桂酸酯 circulating fluidized bed reactor immobilized lipase lauroyl glucose ester
分类号 TS202.3 [轻工技术与工程—食品科学]
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参考文献8

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食品工业科技
2008年 第11期

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