Abstract: Bio ethanol is a liquid bio fuel which can be produced from several different biomass feed stocks and conversion technologies. Ligno-cellulosic waste materials such as fruit waste, agricultural waste, biodiesel waste glycerol and bagasse can be used to produce bio ethanol. Bio ethanol is identical to ethanol from other sources but has the advantage that the raw materials required to produce bio ethanol are highly abundant, diverse, and renewable. Bio ethanol produced from ligno-cellulosic materials, shows energetic, economic and environmental advantages in comparison to bio ethanol from starch or molasses. Ligno-cellulosic waste materials can be processed to rupture cell walls and liberate the sugars needed to produce ethanol. Cellulose molecules are similar to starch and contain long chains of glucose molecules. However, their structural configuration and the encapsulation by lignin make cellulosic materials comparatively more difficult to hydrolyze than starchy materials. Cellulose requires hydrolysis to liberate the cellulose and hemicelluloses from the lignin encapsulation and access its crystalline structure. This can be performed by chemical and enzymatic hydrolysis of ligno-cellulosic material. The extracted sugar molecules from the ligno-cellulosic material need to be converted into ethanol by submerged batch fermentation. Quantitative estimation of bio ethanol produced was carried out by biochemical method and by using a gas chromatograph.
Keywords: Molasses, Lignin, Cellulose, Ethanol, Glycerol, Gas chromatography.
Title: Quantitative Estimation of Bioethanol Produced From Lignocellulosic & Household Wastes
Author: Mrs. Bindu Elizabeth Koshy, Dr. Fanish Kumar Pandey, Dr. Tripti Bhatnagar
International Journal of Life Sciences Research
ISSN 2348-3148 (online), ISSN2348-313X (Print)
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