超滤结合微孔树脂对枯草芽孢杆菌发酵液进行脱色，以生产γ-聚谷氨酸

IF 1.6 4区农林科学

International Journal of Food Engineering Pub Date : 2023-11-06 DOI:10.1515/ijfe-2022-0298

Qianhui Yu, Jinfeng Zhang, Yanmin Cui, Xiushan Zhang, Shuning Yang, Xin Huang, Tuoping Li

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引用次数: 0

摘要

摘要目前，γ-聚谷氨酸(γ-PGA)的工业生产主要基于微生物发酵，但脱色技术仍有待改进。因此，本研究对最佳脱色条件和脱色效率进行了研究。结果表明，D4006是γ-PGA发酵液脱色的理想树脂。脱色的最佳pH值和温度分别为pH 3和40℃;超滤压差0.2 MPa，超滤温度40℃，超滤时间6 h。此外，在超滤基础上组合D4006(3%)树脂对γ-PGA发酵液的脱色效果较好，脱色率达到96.8%。

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Ultrafiltration associated with microporous resin decolorizing the Bacillus subtilis fermentation broth for the production of γ-polyglutamic acid

Abstract Currently, the industrial production of γ-polyglutamic acid (γ-PGA) was mainly based on microbial fermentation, but the decolorization technology still needs to be improved. Therefore, in this study, the optimal decolorization conditions and efficiencies were investigated. As the result, D4006 was an ideal resin for the decolorization of γ-PGA fermentation broth. The optimal decolorization pH value and temperature were pH 3 and 40 °C, respectively; ultrafiltration differential pressure, temperature and time were 0.2 MPa, 40 °C, and 6 h, respectively. Moreover, the combination of D4006 (3 %) resin on the basis of ultrafiltration had a better decolorization effect on γ-PGA fermentation broth, and the decolorization rate reached 96.8 %.

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来源期刊

International Journal of Food Engineering 农林科学-食品科技

CiteScore

3.20

自引率

0.00%

发文量

审稿时长

3.8 months

期刊介绍： International Journal of Food Engineering is devoted to engineering disciplines related to processing foods. The areas of interest include heat, mass transfer and fluid flow in food processing; food microstructure development and characterization; application of artificial intelligence in food engineering research and in industry; food biotechnology; and mathematical modeling and software development for food processing purposes. Authors and editors come from top engineering programs around the world: the U.S., Canada, the U.K., and Western Europe, but also South America, Asia, Africa, and the Middle East.