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Response surface optimization of cellulase production by Aspergillus stellatus NFCCI 5299 in shake flask submerged fermentation using wheat bran

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Abstract

The expense of cellulase enzymes is the main barrier to the enzymatic saccharification of biomass. Numerous tactics, such as the utilizing inexpensive lignocellulosic substrates as well as economically feasible fermentation techniques for the production of the enzyme may reduce the cost of cellulases. The present investigation was aimed to improve cellulase production employing potential cellulolytic soil fungi, Aspergillus stellatus NFCCI 5299 using wheat bran as substrate. Employing response surface methodology (RSM) with central composite design (CCD), the most efficient process parameters were determined. The ideal conditions for the synthesis of carboxy methyl cellulase (CMCase) and filter paper cellulase activity (FPase) were 6 days of incubation, inoculum size of 4 mycelial disc, 125 rpm of agitation, and 3.5% of wheat bran. The significant mycelial development and enzymatic digestion of wheat bran were discovered by scanning electron microscopy (SEM) and fourier transform infrared (FTIR) analysis. The findings suggested that it can be practicable to use wheat bran as substrate under submerged fermentation utilizing Aspergillusstellatus NFCCI 5299 for efficient cellulase production.

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Acknowledgements

Our appreciation extends to Head, Center for Basic Sciences, Pt. Ravishankar Shukla University, who provided the research facility. The researchers are thankful towards the Microbiology Research Laboratory, School of Studies in Life Science, Pt. Ravishankar Shukla University for providing chemicals.

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Correspondence to Priya Sutaoney or Prabir Ghosh.

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Thakur, G., Sutaoney, P., Joshi, V. et al. Response surface optimization of cellulase production by Aspergillus stellatus NFCCI 5299 in shake flask submerged fermentation using wheat bran. 3 Biotech 14, 21 (2024). https://doi.org/10.1007/s13205-023-03860-0

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  • DOI: https://doi.org/10.1007/s13205-023-03860-0

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