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Indian Journal of Microbiology

, Volume 47, Issue 1, pp 26–29 | Cite as

Paddy straw as substrate for ethanol production

Original 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.

Key words

Cellulose ethanol fermentation paddy straw S. cerevisiae 

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Copyright information

© Association of Microbiologists of India 2007

Authors and Affiliations

  1. 1.Department of MicrobiologyCCS Haryana Agricultural UniversityHisarIndia

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