Modeling the Biosurfactant Fermentation by Geobacillus stearothermophilus DSM2313

IF 16.4 1区 化学 Q1 CHEMISTRY, MULTIDISCIPLINARY
Réka Czinkóczky, Á. Németh
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引用次数: 3

Abstract

Biosurfactants are emerging molecules in the 21st century. However, their production intensification is still required for the development of feasible bioprocesses. Therefore, this paper studies a new biosurfactant-producer, namely Geobacillus stearothermophilus DSM2313 during statistical optimization via response surface methodology. After the statistical analysis the optimal pH = 7, glucose = 50 g/L and NH4NO3 = 2 g/L concentrations were determined. The biosurfactant production of the bacteria was predicted by our developed artificial neural network. The optimal harvesting time of the broth and the emulsification index values can be predicted simultaneously with the constructed artificial neural network. The best experiment was also kinetically described, and kinetic constants observed. Surface tension and emulsification activity were measured to characterize the formed products' efficiency. Based on these results, biosurfactants from Geobacillus stearothermophilus DSM2313 can act as bioemulsifier and can be applied for example in microbial enhanced oil recovery.
脂嗜热地杆菌DSM2313发酵生物表面活性剂的模拟
生物表面活性剂是21世纪新兴的分子。然而,它们的生产集约化仍然需要开发可行的生物工艺。因此,本文采用响应面法进行统计优化,研究了一种新的生物表面活性剂产生菌——嗜热硬脂地杆菌DSM2313。经统计分析,确定pH = 7、葡萄糖= 50 g/L、NH4NO3 = 2 g/L的最佳浓度。利用人工神经网络对细菌的生物表面活性剂产量进行了预测。利用构建的人工神经网络可以同时预测出肉汤的最佳收获时间和乳化指数值。对最佳实验也进行了动力学描述,并观察了动力学常数。通过测定表面张力和乳化活性来表征产物的乳化效率。基于这些结果,来自嗜热硬脂地杆菌DSM2313的生物表面活性剂可以作为生物乳化剂,应用于微生物提高采收率等领域。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Accounts of Chemical Research
Accounts of Chemical Research 化学-化学综合
CiteScore
31.40
自引率
1.10%
发文量
312
审稿时长
2 months
期刊介绍: Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.
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