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Volume: 2, Issue: 4, July-Aug, 2014

July-Aug, 2014

DOI: 10.7324/JABB.2014.2405

Research Article

Nitrogen Source Pretreatment of Ragi Straw for Fermentable Sugar Production using Bacillus Pumilus

Rekha Sethi1, Prasad MP2, Anand M2, Padmavathi T1

  Author Affiliations


Biochemical conversion of lingo cellulosic biomass to ethanol provides a sustainable energy production system. Ragi straw is a fast growing domestic feedstock for Bio-ethanol production. In the present study ragi straw (Eleusine coracana L) was supplemented with different nitrogen Source prior to enzymatic hydrolysis by Bacillus pumilus isolated from marine sources process to produce fermentable sugars using different concentrations of the nitrogen source in the range of 0.5%, 1.0%, 1.5 % and 2.0%.The presence of nitrogen sources had an impact on the growth of the organism and supported enzymatic hydrolysis to degrade complex sugars to simple sugars, which could be further used for Bio-ethanol production. Ammonium nitrate proved to be the best nitrogen source at 0.5% concentration to support enzymatic hydrolysis of ragi straw which could be utilized for ethanol production as ragi straw is abundantly available.


Nitrogen Source, Ragi straw, Bioethanol, lignocelluloses.

Citation: Rekha Sethi, Prasad MP, Anand M, Padmavathi T. Nitrogen Source Pretreatment of Ragi Straw for Fermentable Sugar Production using Bacillus Pumilus. J App Biol Biotech, 2014; 2 (04): 030-032. DOI: 10.7324/JABB.2014.2405

Copyright: Author(s). This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License, which permits non-commercial re-use, distribution, and reproduction in any medium, provided the original work is properly cited.


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