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November 19, 2024International Journal of Environmental Science and TechnologyOpen Access

New trends in mycosynthesis of cellulose nanocrystals promoted by gamma irradiation of sugarcane bagasse

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Authors

AKAbdel KaderGHG. A. HelalYGY. G. M. Galal

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Overview

Experimental study demonstrates efficient fungal synthesis of cellulose nanocrystals from irradiated sugarcane bagasse, highlighting a sustainable alternative to chemical processing.

Key Points

  • To evaluate the biological synthesis of cellulose nanocrystals using fungal degradation assisted by gamma irradiation pretreatment of sugarcane bagasse in comparison to chemical acid hydrolysis.
  • Sugarcane bagasse feedstock was exposed to gamma irradiation doses of 100, 200, and 300 kGy prior to downstream processing.
  • Biological production using Neurospora intermedia, Fusarium verticillioides, and Rhizopus oryzae was compared with chemical hydrolysis using 64% sulfuric acid at 45 °C for 45 minutes.
  • Synthesized nanocrystals were characterized using UV–Vis spectroscopy, dynamic light scattering, Fourier-transform infrared spectroscopy, X-ray diffraction, and transmission electron microscopy.
  • Gamma irradiation pretreatment across 100 to 300 kGy enhanced the overall yield of nanocellulose derived from sugarcane bagasse.
  • Biologically synthesized cellulose nanocrystals exhibited markedly higher crystallinity and larger crystallite dimensions relative to chemically purified cellulose and raw bagasse.
  • Fusarium verticillioides was identified as the most effective, sustainable, and cost-efficient fungal strain for high-quality nanocellulose production.

Cite This Study

Kader et al. (2024) studied this question.

synapsesocial.com/papers/6a7c07147cc40aa1f8dfa285https://doi.org/10.1007/s13762-024-06144-z
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