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Paddy straw as substrate for ethanol production

Indian Journal of Microbiology volume 47, pages 26–29 (2007)Cite this article

Abstract

Pretreatment of paddy straw with 2% sodium hydroxide at 15 psi for 1 h resulted in 83% delignification. The hydrolysis of alkali treated paddy straw with a commercial preparation of cellulase for 2 h at 50°C resulted in release of 65% total reducing sugars. Maximum sugars were released at enzyme loading of 1.5% (v/v). The fermentation of hydrolysate supplemented with nutrients by S. cerevisiae resulted in the production of 20–30 g L−1 ethanol after 48 h incubation which was further improved with addition of yeast nitrogen base and inoculated with 1% (w/v) yeast cells.

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Affiliations

  1. Department of Microbiology, CCS Haryana Agricultural University, Hisar, 125 004, India

    L. Wati, S. Kumari & B. S. Kundu

Authors
  1. L. Wati
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  2. S. Kumari
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  3. B. S. Kundu
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Correspondence to L. Wati.

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Wati, L., Kumari, S. & Kundu, B.S. Paddy straw as substrate for ethanol production. Indian J Microbiol 47, 26–29 (2007). https://doi.org/10.1007/s12088-007-0005-y

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  • DOI: https://doi.org/10.1007/s12088-007-0005-y

Key words

  • Cellulose
  • ethanol
  • fermentation
  • paddy straw
  • S. cerevisiae