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乙醇/碳酸钾双水相萃取盾叶薯蓣发酵液中的2,3-丁二醇

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Indexed by: Journal Article

Date of Publication: 2009-01-01

Journal: 化工学报

Included Journals: CSCD、ISTIC、PKU、EI、Scopus

Volume: 60

Issue: 11

Page Number: 2798-2804

ISSN: 0438-1157

Key Words: 3-丁二醇; 双水相萃取; 有机酸; 发酵液

Abstract: 实验考察了乙醇/碳酸钾双水相萃取盾叶薯蓣发酵液中2,3-丁二醇的分配情况,并对其工艺条件进行了优化.结果表明,当乙醇22%(质量)、碳酸钾26%
   (质量)时,发酵液中2,3-丁二醇的回收率达到最高值97%,此时,乙偶姻和残余还原糖的回收率为97%和87%,菌体和蛋白的去除率分别为99%和9
   4%,而丙酮酸、柠檬酸、苹果酸、延胡索酸和琥珀酸的去除率高达100%,这为2,3-丁二醇的工业分离提供了一种新的技术.

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