• Karuppaiya.M
• Rajkumar.J
• Sangavai.C

Bioethanol has gained prominence as an alternative sources of energy due to the predictable exhaustion of fuel energy supply. The bio ethanol production during microbial fermentation provides with an inexpensively competitive source of energy. Today most of the ethanol manufactured in the important roles is produced from microbes. Existing technology is based on enzymes conversion to ethanol use marine microbes. To confirm the role of cellulase enzyme in ethanol production, carboxy methyl cellulase activity was assayed. Hydrolysis of cellulosic material by concentrated sulphuric or phosphoric acid is a relatively old process. In general, concentrated phosphoric acid is used followed by dilution with water to dissolve an hydrolyse or convert the substrate into sugar. In addition to ethanol could also be produced from lignocellulosic biomass (grasses, agriculture residues, such as cobs, stalks, and leaves, wood wastes, fast growing trees, sugar wastes, citrus and rice wastes, non-edible parts of plants. Due to the complex of nature of the carbohydrates present in lignocellulosic biomass, a significant amount of xylose and arabinose sugars derived from the hemicellulose portion of the lignocelluloses is also present in the hydrolysate. Hydrolysate obtained by acid pretreatment is used for fermentation by microorganisms. future large scale use of ethanol will most certainly have to be based on production from lignocellulosic materials. The new technologies required and the advanced in recent years to bring lignocellulosic ethanol towards industrial production.

Microorganism, Celluase, hydrolysate

"BIOETHANOL PRODUCTION BY USING MICROBIAL ENZYME", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.5, Issue 7, page no.1083-1092, July-2018, Available :http://www.jetir.org/papers/JETIR1807891.pdf

"BIOETHANOL PRODUCTION BY USING MICROBIAL ENZYME", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.5, Issue 7, page no. pp1083-1092, July-2018, Available at : http://www.jetir.org/papers/JETIR1807891.pdf