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Bioresour Technol. 2011 Jan;102(1):186-93. doi: 10.1016/j.biortech.2010.06.139.

Micro and macroalgal biomass: a renewable source for bioethanol.

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Institut National de la Recherche Scientifique-Eau Terre Environnement, 490 rue de la Couronne, Qu├ębec G1K 9A9, Canada.


Population outburst together with increased motorization has led to an overwhelming increase in the demand for fuel. In the milieu of economical and environmental concern, algae capable of accumulating high starch/cellulose can serve as an excellent alternative to food crops for bioethanol production, a green fuel for sustainable future. Certain species of algae can produce ethanol during dark-anaerobic fermentation and thus serve as a direct source for ethanol production. Of late, oleaginous microalgae generate high starch/cellulose biomass waste after oil extraction, which can be hydrolyzed to generate sugary syrup to be used as substrate for ethanol production. Macroalgae are also harnessed as renewable source of biomass intended for ethanol production. Currently there are very few studies on this issue, and intense research is required in future in this area for efficient utilization of algal biomass and their industrial wastes to produce environmentally friendly fuel bioethanol.

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