Evaluation of enhanced production of cellulose deconstructing enzyme using natural and alkali pretreated sugar cane bagasse under the influence of graphene oxide

Neha Srivastava, Akbar Mohammad, Rajeev Singh, Manish Srivastava, Asad Syed, Dan Bahadur Pal, Abdallah M. Elgorban, P. K. Mishra, Vijai Kumar Gupta*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

High production cost of cellulase enzyme is one of the main constraints in the practical implementation of biofuels at global scale. Therefore, the present investigation is focused to produce low-cost cellulase via sustainable strategies. This work evaluates to achieve enhanced fungal cellulase production using natural and pretreated sugar cane bagasse (SCB) via Rhizopus oryzae NS5 under the solid state fermentation (SSF) while implementing graphene oxide (GO) as a catalyst. A low alkali treatment showed better performance for cellulase production wherein 14 IU/gds FP activity is observed in 96 h using 0.5% alkali treated SCB, significantly higher as compared to 10 IU/gds FP in case of untreated SCB. Further, the effect of GO has been investigated on cellulase production, incubation temperature and pH of the production medium. Under the influence of 1.5% concentration of GO, alkali pretreated SCB produced maximum 25 IU/gds cellulase in 72 h at pH 5.0 and 40 °C.

Original languageEnglish
Article number126015
JournalBioresource Technology
Volume342
Early online date22 Sep 2021
DOIs
Publication statusPrint publication - Dec 2021

Keywords

  • Bioconversion, graphene oxide
  • Cellulases
  • Rhizopus oryzae
  • Solid state fermentation
  • Sugarcane bagasse

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