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Bio-Ethanol Production from Plant: A Low Cost Technology

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Global warming alerts and threats are on the rise due to the utilization of fossil fuels. Alternative fuel sources like bio ethanol and biodiesel are being produced to combat against these threats. One of the biggest problems faced by cotton industries is the disposal of gin waste. The waste is generated after the ginning of cotton fibers which is ligno-cellulosic material in nature. The waste is potentially utilized as pesticides, fertilizer, reduced green house gas emission etc. Cellulose rich substances like cotton waste which is generated in tons in agricultural countries like India can be used for the production of bioenergy in the form of Bioethanol with the help of microbial catalytic enzyme cellulose. The present study deals with the production of ethanol from the cotton gin waste with the help of cellulose enzyme synthesized from different fungi Trametes pubescens and Pleurotus ostreatus. White rot fungi has the capability to separate the cellulose and hemicelluloses component from the complex lignin. The hydrolysis was done with two different fungus like Trichoderma reesei and Aspergillus niger. Finally the fermentation was done by Saccharomyces cerevisiae which can produce ethanol from sugar. The total experiment was done with the acidic and biological method. The different conc. of acid (H2So4) like 5, 1, 1.5, 2, 2.5, and 3% was taken for acid treatment through microbial extracellular enzymatic hydrolysis and fermentation which compared with biological treatment. This work has attempted to take a broad analysis of most of the research done worldwide in the past few years regarding the enormous diversity of value added products from pre-treated Lignocellulosic waste (LCW). Various pre-treatment and production system providing technical and economic feasibility to harness the renewable materials while at the same time cleaning up the environment have been highlighted. Current and future research trends are directed towards developments and application of engineered organisms to tackle the challenges encountered from using conventional occurring microbial strains.
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Keywords: CELLULOSE; FERMENTATION; FUNGUS; HEMICELLULOSE; HYDROLYSIS; LIGNIN; PRETREATMENT; YEAST

Document Type: Research Article

Publication date: February 1, 2016

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  • ADVANCED SCIENCE LETTERS is an international peer-reviewed journal with a very wide-ranging coverage, consolidates research activities in all areas of (1) Physical Sciences, (2) Biological Sciences, (3) Mathematical Sciences, (4) Engineering, (5) Computer and Information Sciences, and (6) Geosciences to publish original short communications, full research papers and timely brief (mini) reviews with authors photo and biography encompassing the basic and applied research and current developments in educational aspects of these scientific areas.
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