Poly-gamma-glutamic acid produced from Bacillus licheniformis CGMCC 2876 as a potential substitute for polyacrylamide in the sugarcane industry
Poly-gamma-glutamic acid produced from Bacillus licheniformis CGMCC 2876 as a potential substitute for polyacrylamide in the sugarcane industry
复制标题
由地衣芽孢杆菌 CGMCC 2876 生产的聚 γ-谷氨酸作为甘蔗行业聚丙烯酰胺的潜在替代品
DOI：
10.1002/btpr.2118
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发表时间：
2015
影响因子：
2.9
通讯作者：
Li Qingbiao
中科院分区：
文献类型：
--
作者：
Yan Shan;Yao Haosheng;Chen Zhen;Zeng Shengquan;Xi Xi;Wang Yuanpeng;He Ning;Li Qingbiao
As an environmentally friendly and industrially useful biopolymer, poly‐γ‐glutamic acid (γ‐PGA) from Bacillus licheniformis CGMCC 2876 was characterized by the high‐resolution mass spectrometry and1H NMR. A flocculating activity of 11,474.47 U mL−1obtained with γ‐PGA, and the effects of carbon sources, ions, and chemical properties (D‐/L‐composition and molecular weight) on the production and flocculating activity of γ‐PGA were discussed. Being a bioflocculant in the sugar refinery process, the color and turbidity of the sugarcane juice was IU 1,877.36 and IU 341.41 with 0.8 ppm of γ‐PGA, respectively, which was as good as the most widely used chemically synthesized flocculant in the sugarcane industry—polyacrylamide with 1 ppm. The γ‐PGA produced from B. licheniformis CGMCC 2876 could be a promising alternate of chemically synthesized flocculants in the sugarcane industry. © 2015 American Institute of Chemical EngineersBiotechnol. Prog., 31:1287–1294, 2015
