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International Journal of Chemical Reactor Engineering

Ed. by de Lasa, Hugo / Xu, Charles Chunbao

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1542-6580
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Production of L-asparaginase from Natural Substrates by Aspergillus terreus MTCC 1782: Optimization of Carbon Source and Operating Conditions

Baskar Gurunathan / Renganathan Sahadevan
Published Online: 2011-07-23 | DOI: https://doi.org/10.1515/1542-6580.2479

In the present work, the effect of different carbon sources, namely glucose, sucrose, maltose, fructose and lactose, was studied for extracellular L-asparaginase production by Aspergillus terreus MTCC 1782 in submerged fermentation. The best carbon source and operating conditions such as initial pH, inoculum size, temperature and agitation rate were optimized. Glucose was found to be the best carbon source for L-asparaginase production using modified Czapek-Dox media containing L-proline as substrate. Sucrose was found to be the best carbon source for L-asparaginase production using modified Czapek-Dox media containing groundnut oil cake flour as substrate. Glucose was found to be the best carbon source for maximum L-asparaginase production using modified Czapek-Dox media containing soya bean meal flour as substrate. The soya bean meal flour was found to be the best natural substrate for maximum L-asparaginase activity of 35.3 IU/mL using 0.6% glucose as carbon source at the optimal culture conditions of initial pH 6, inoculum size 2%, temperature 35°C and agitation rate 160 rpm.

Keywords: L-asparaginase; carbon source; operating conditions; submerged fermentation

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Published Online: 2011-07-23


Citation Information: International Journal of Chemical Reactor Engineering, ISSN (Online) 1542-6580, DOI: https://doi.org/10.1515/1542-6580.2479.

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