Dilipkumar M, Rajasimman M, Rajamohan N
Department of Chemical Engineering, Annamalai University, Annamalainagar, Tamilnadu 608002, India.
Biotechnol Res Int. 2011 Mar 30;2011:708043. doi: 10.4061/2011/708043.
Plackett-Burman design was employed for screening 18 nutrient components for the production of inulinase using Garlic as substrate by Streptomyces sp. in solid-state fermentation (SSF). From the experiments, 4 nutrients, namely, NH(4)NO(3), MnSO(4)·7H(2)O, Soya bean cake, and K(2)HPO(4) were found to be most significant nutrient components. Hence, these 4 components are selected. The selected components were optimized using response surface methodology (RSM). The optimum conditions are NH(4)NO(3)-6.63 mg/gds, MnSO(4)·7H(2)O-26.16 mg/gds, Soya bean cake-60.6 mg/gds, and K(2)HPO(4)-5.24 mg/gds. Under these conditions, the production of inulinase was found to be 76 U/gds.
采用Plackett-Burman设计筛选了18种营养成分,用于链霉菌以大蒜为底物固态发酵生产菊粉酶。通过实验发现,4种营养成分,即硝酸铵、七水硫酸锰、豆饼和磷酸氢二钾是最显著的营养成分。因此,选择了这4种成分。使用响应面法(RSM)对所选成分进行了优化。最佳条件为硝酸铵-6.63毫克/克干基、七水硫酸锰-26.16毫克/克干基、豆饼-60.6毫克/克干基和磷酸氢二钾-5.24毫克/克干基。在这些条件下,菊粉酶的产量为76单位/克干基。