PRODUCTION AND OPTIMIZATION OF GROWTH CONDITIONS FOR INVERTASE ENZYME BY ASPERGILLUS SP., IN SOLID STATE FERMENTATION (SSF) USING PAPAYA PEEL AS SUBSTRATE

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December – January, 2013/14, vol. 3, no. 3
pages: 266-269
Article type: Microbiology of Microbiology
Abstract: Invertase enzymes are produced mainly by plants, some filamentous fungi, yeast and many other microorganisms which finds applications in food industries, confectionaries, pharmaceuticals, etc., The present work deals with the production of Invertase by Aspergillus sp., isolated from various soil samples in solid state fermentation using papaya peel waste as substrate. Enzyme activity was checked using Fehling’s reagent and assay was carried out by DNSA method. The results of optimized conditions showed that the invertase activity was high in the SSF using papaya peel as substrate, incubated for 6 days at temperature of 35°C, pH 7, with 2.25gms/100ml of Ammonium nitrate as nitrogen source and 10gms/100ml of sucrose as carbon source. Hence the agro wastes from industries can be recycled by using it as substrate in SSF for high invertase enzyme production which finds applications in many fields.
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