Production of Humic Acid by a Bacillus megaterium Strain Using Vinasse

文献类型： 外文期刊

第一作者： Deng, Zhi-Nian

作者： Deng, Zhi-Nian;Wei, Yuan-Wen;Cao, Hui-Qing;Li, Yang-Rui

作者机构：

关键词： Bacillus megaterium;Vinasse;Humic acid;Fermentation condition;Infrared spectrum

期刊名称：SUGAR TECH （ 影响因子：1.591； 五年影响因子：1.688 ）

ISSN： 0972-1525

年卷期： 2018 年 20 卷 2 期

页码：

收录情况： SCI

摘要： Humic acid can be produced by a Bacillus megaterium strain, AS019, using vinasse (sugarcane mill wastewater) at an optimal concentration of 12 A degrees Bx. Using single factor and orthogonal experiments, the optimal culture conditions were determined: optimum inoculum size, 15%; initial pH, 6.0; culture time, 8 days; rotation speed, 180 rpm; and temperature, 28 degrees C. Under the optimal conditions, the humic acid production rate for the strain was 49.50 g/L. The results of characterization and infrared spectral analysis revealed that the produced humic acid contained a variety of reactive functional groups.

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