Sphingomonas sp.生产威兰胶分批发酵动力学

Study on Welan Gum Fermentation Dynamics of Sphingomonas sp.

DOI：10.3969/j.issn.1673-1689.2015.05.010

中文关键词: 威兰胶 革兰氏阴性棒状杆菌 发酵动力学 数学模拟

英文关键词: welan gum,Sphingomonas sp.,fermentation dynamics,math model

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中文摘要:

为了优化革兰氏阴性棒状杆菌(Sphingomonas sp.)生产的发酵过程,对该菌发酵生产威兰胶分批发酵动力学进行了研究,利用数学建模方法得到了描述该菌株在7 L发酵罐中菌体生长、威兰胶合成和氮源消耗动力学数学模型。实验和模型数据的比较结果证明,该模型计算值与实际结果拟合良好,为其应用在威兰胶的放大工业化生产提供了依据。

英文摘要:

The EPS welan gum batch fermentation dynamics of Sphingomonas sp. were demonstrated. The mathematics models of the dynamic parameters of Sphingomonas sp. growth in 7 L fermentation reactor,synthesis of welan gum,and consumption of nitrogenous source were depicted. The estimated model parameters were confirmed bythe batchfermentation experiment data. These models offered the evidences for large scale production of welan gum.

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