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玉米浆和表面活性剂添加对α-酮戊二酸发酵的影响

FAJIAO KEJI TONGXUN(2017)

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Abstract
首先研究了添加玉米浆和表面活性剂吐温对谷氨酸棒状杆菌GKGD发酵生产α-酮戊二酸的影响.在此基础上,通过采用添加过量玉米浆,同时在产酸期添加吐温60的培养方法,显著提高了α-酮戊二酸的产量.结果表明:相比于吐温80,吐温60更有利于α-酮戊二酸的分泌;在初始发酵培养基中添加6mL/L玉米浆,在发酵10h加入1mL/L吐温60,可以使α-酮戊二酸的质量浓度达到17.9g/L.
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