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ETHANOL PRODUCTION POTENTIAL OF RICE STRAW

KrishiKosh

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Title ETHANOL PRODUCTION POTENTIAL OF RICE STRAW
M Sc
 
Creator SHEETAL K. RADHAKRISHNAN
 
Contributor Shiv Prasad
 
Subject crop residues, rice, alcohols, sugar, cellulose, productivity, fermentation, fungi, polysaccharides, acidity
 
Description T-8600
In the last decade, most research has tended to focus on developing an
economical and eco-friendly ethanol production process. Much emphasis is being given
to the production of ethanol from agricultural and forestry residues and other forms of
lignocellulosic biomass. With over 90% of the worldwide production, most rice straw is
produced in Asia. Therefore, rice straw is considered to be an attractive alternative for
fuel ethanol production in Asia. An objective of the study was screening selected
popular rice varieties grown in northern India which has not been comparatively studied
before with respect to ethanol production potential. Characterization of the rice varieties
on the basis of fibre, sugar content and other chemical constituents, showed rice straw
to be a potential feedstock for ethanol production. Pretreatment is considered the most
important step in determining the cost and success of the process of enzymatic
saccharification of lignocellulosic biomass. The effectiveness of pretreatment using
autoclave and microwave assisted dilute acid and alkali to produce maximum
fermentable sugars in terms of total soluble sugar from the straw was investigated. The
results showed that microwave assisted alkali pretreatment is a promising approach to
enhance fermentable sugar yields. Fermentable sugars were found to increase with the
increase in temperature and irradiation time in case of microwave treatment. Sugar
recovery was found maximum by microwave assisted alkali (NaOH) treatment,
followed by acid (H2SO4) and minimum in hot water. In the treatments with microwave,
Taraori Basmati was found to give highest yield, followed by Pusa Basmati 1121 with
respect to the release of soluble sugars.
 
Date 2016-09-23T19:13:53Z
2016-09-23T19:13:53Z
2012
 
Type Thesis
 
Identifier http://krishikosh.egranth.ac.in/handle/1/78687
 
Format application/pdf
 
Publisher IATI, DIVISION OF ENVIRONMENTAL SCIENCES