Asian Journal of Bio Science

S. Gnana Soundari ¹, V. Sashi ¹

Affiliations
1 Department of Plant Biology and Plant Biotechnology, P.S.G.R. Krishnammal College for Women, Coimbatore (T.N.), IN

Abstract

The objective of this work was to study the potential effect of three fungal xylanase enzymes for ethanol production. The selection of Saccharomyces cerevisiae strains to ferment sugars obtained from the wheat bran and rice bran at temperatures above 35°C with high ethanol yield has become a necessity. In this work S.cerevisiae strains were screened for their ability to grow and ferment xylose in the culture filterate produced by Aspergillus flavus, A.niger and Trichoderma viride. The results obtained from this study showed that the wheat/rice bran possessed an excellent potential for agro-residue based ethanol production.

Keywords

Wheat Bran, Rice Bran, Ethanol, Yeast, Fermentation.

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P. Sasi Arasi ¹, V. Sashi ¹

Affiliations
1 Department of Plant Biology and Plant Biotechnology, P.S.G.R. Krishnammal College for Women, Coimbatore (T.N.), IN

Abstract

The objective of this work was to study the potential effect of two bacterial xylanase enzymes for ethanol production. The selection of Saccharomyces cerevisiae strains to ferment sugars obtained from the rice bran at temperatures above 35°C with high ethanol yield has become a necessity. In this work S.cerevisiae strains were screened for their ability to grow and ferment xylose in the culture filterate produced by Bacillus pumilus and Pseduomonas aueruginosa. The results obtained from this study showed that rice bran present, an excellent source for agro-residue based ethanol production.

Keywords

Rice Bran, Ethanol, Yeast, Fermentation.

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V. Sashi ¹, N. S. Malathy ¹

Affiliations
1 Department of Plant Biology and Plant Biotechnology, P.S.G.R. Krishnammal College for Women, Coimbatore (T.N.), IN

Abstract

The production of xylanase by Aspergillus wentii in submerged fermentation at different ranges of pH, temperature and time periods was studied. The maximum xylanase production, was obtained at pH 6.0, temperature 40°C but it was at par with 35°C and time period of 120hrs. Optimization studies were carried out to find the effect of carbon and nitrogen sources on xylanase production and it was observed that wheat bran xylan medium supplemented with methyl - β - D xylopyranoside and NaNO₃ supported good yield of xylanase.

Keywords

Xylanase, Liquid State Fermentation (LSF), Aspergillus wentii, Wheat Bran, Static Conditions.

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