Response surface optimisation of medium components for naringinase production from staphylococcus xylosus MAK 2
Puri, Munish, Kaur, Aneet, Singh, Ram Sarup and Singh, Anubhav 2010, Response surface optimisation of medium components for naringinase production from staphylococcus xylosus MAK 2, Applied biochemistry and biotechnology, vol. 162, no. 1, pp. 181-191.
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Title
Response surface optimisation of medium components for naringinase production from staphylococcus xylosus MAK 2
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Response surface optimisation of medium components for naringinase production from Staphylococcus xylosus MAK 2
Response surface methodology was used to optimize the fermentation medium for enhancing naringinase production by Staphylococcus xylosus. The first step of this process involved the individual adjustment and optimization of various medium components at shake flask level. Sources of carbon (sucrose) and nitrogen (sodium nitrate), as well as an inducer (naringin) and pH levels were all found to be the important factors significantly affecting naringinase production. In the second step, a 22 full factorial central composite design was applied to determine the optimal levels of each of the significant variables. A second-order polynomial was derived by multiple regression analysis on the experimental data. Using this methodology, the optimum values for the critical components were obtained as follows: sucrose, 10.0%; sodium nitrate, 10.0%; pH 5.6; biomass concentration, 1.58%; and naringin, 0.50% (w/v), respectively. Under optimal conditions, the experimental naringinase production was 8.45 U/mL. The determination coefficients (R 2) were 0.9908 and 0.9950 for naringinase activity and biomass production, respectively, indicating an adequate degree of reliability in the model.
Notes
Published online: 8 September 2009
Language
eng
Field of Research
060107 Enzymes 100302 Bioprocessing, Bioproduction and Bioproducts
Socio Economic Objective
860699 Industrial Chemicals and Related Products not elsewhere classified