Enhanced production of intracellular dextran dextrinase from Gluconobacter oxydans using statistical experimental methods
Enhanced production of intracellular dextran dextrinase from Gluconobacter oxydans using statistical experimental methods
复制标题
使用统计实验方法增强氧化葡糖杆菌细胞内葡聚糖糊精酶的产量
DOI:
10.5897/ajb09.1760
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发表时间:
2010-02
影响因子:
--
通讯作者:
毛相朝
中科院分区:
文献类型:
--
作者:
毛相朝
Optimization of the fermentation medium for DDase production by Gluconaobacter oxydans M5 was carried out in the shake flasks using two kinds of statistical methods. Four variables, namely glucose, tryptone, yeast extract and sodium chloride, were found to influence DDase production significantly by the Plackett-Burman screening. A four-factor five-level central composite design (CCD) was chosen to explain the combined effects of the four medium constituents. The optimum medium consisted of glucose (17.670 g/L), maltobiose (30 g/L), tryptone (12.198 g/L), yeast extract (13.528 g/L), ammonium nitrate (15 g/L), copper sulfate (0.01 g/L), zinc sulfate (0.01 g/L), and sodium chloride (0.009 g/L); the initial pH 6.0 was set prior to sterilization. The DDase yield obtained from optimized medium increased by 17-fold (0.238 U/mL) or so. Under these optimal conditions, the experimental values agreed with the predicted values, indicating that the chosen method of optimization of medium composition was efficient, relatively simple, time reducing and material saving.
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DOI:
10.1002/pol.1984.130220614
发表时间:
1984-06
期刊:
Journal of Polymer Science: Polymer Letters Edition
影响因子:
--
作者:
R. M. Joyce
通讯作者:
R. M. Joyce
影响因子:
11.4
作者:
K. T. Tan;Keat-Teong Lee;A. Mohamed
通讯作者:
K. T. Tan;Keat-Teong Lee;A. Mohamed
DOI:
10.1107/s1600536808037963
发表时间:
2008-12-10
期刊:
Acta crystallographica. Section E, Structure reports online
影响因子:
--
作者:
Hunter GO;Zeller M;Leskiw BD
通讯作者:
Leskiw BD
影响因子:
5
作者:
Keliang Gao;Q. Song;D. Wei
通讯作者:
Keliang Gao;Q. Song;D. Wei
影响因子:
4.4
作者:
Xiangzhao Mao;Yaling Shen;Liang Yang;Shi Chen;Yuping Yang;Jingya Yang;Hu Zhu;Z. Deng;D. Wei
通讯作者:
Xiangzhao Mao;Yaling Shen;Liang Yang;Shi Chen;Yuping Yang;Jingya Yang;Hu Zhu;Z. Deng;D. Wei