Bioethanol production from cassava (Manihot esculenta) peels.
DOI:
https://doi.org/10.29076/issn.2602-8360vol2iss2.2018pp40-45pAbstract
In recent years, the production of ethanol from plentiful, low cost cellulosic biomass or agricultural wastes has grown in importance due to the hope that it could reduce the cost of ethanol production and benefit the global environment. The application of using cassava residues for ethanol production could be of great advantage to a country’s economy; hence, this study was carried out to determine the possibility of bioethanol production from cassava peels as a cheaper bioethanol source. Cassava peels were collected, cleaned, chopped and fermented for 14 days by Saccharomyces cerevisiae isolated from palm wine. In this study, parameters including biomass, ethanol yield, pH, titratable acidity and reducing sugar were analyzed at two day intervals using standard methods. There was a drop in pH from 5.0 to 3.8 in the yeast ameliorated batch of fermentation with ethanol yield of 7.5 mL and about 8.1% alcohol content produced. There was a progressive increase in titratable acidity and cell biomass; and a decrease in reducing sugar during the course of fermentation of both the test and control batches. The results from this study showed that ethanol production from cassava peels could provide solution to the problems of their disposal into the environment and also serve as an alternative option to ethanol production from cheaper available raw materials
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References
Legras J, Merdinoglu J, Cornuet D, Karst F. Bread, beer and wine: Saccharomyces cerevisiae diversity reflects human history. Mol Ecol. 2007; 16(10):2091–102.
Isitua C-C, Ibeh I-N. Novel method of wine production from banana (Musa acuminata) and pineapple (Ananas comosus) wastes. African J Biotechnol. 2010; 9(44):7521–4.
Khurana V, Lindquist S. Modelling neurodegeneration in Saccharomyces cerevisiae: why cook with baker’s yeast? Nat Rev Neurosci [Internet]. 2010; 11(6):1–14. Available from: www.nature.com/reviews/neur
Osumah L-I, Tonukari N-J. Production of yeast using acid-hydrolyzed cassava and poultry manure extract. African J Biochem Res. 2010; 4(5):119–25.
Commission NP (NPC). Nigeria’s Crop Production: The Fifth National Development Plan. XIV. Federal Republic of Nigeria: Abuja; 2008. 460 p.
Barnette J, Payne R, Yarrow D. Yeasts: Characteristics and Identification. Cambridge Univ Press. 1990; 2nd ed.
Chemists A of OA. Official Methods of Analysis of AOAC International. 18th ed. Horwitz W, Latimer G, editors. Washington DC; 2010. 43 p.
Srinorakutara T, Suesat C, Pitiyont B, Kitpreechavanit W, Cattithammanit S. Utilization of Waste from Cassava Starch Plant for Ethanol Production. In: The Joint International Conference on “Sustainable Energy and Environment (SEE)” [Internet]. Hua Hin, Thailan; 2004. p. 344–9. Available from: http://www.thaiscience.info/Article for ThaiScience/Article/1/10005968.pdf
Burrell M-M. Starch: the need for improved quality or quantity-an overview. J Exp Bot [Internet]. 2003; 54(382):451–6. Available from: https://academic.oup.com/jxb/article-abstract/54/382/451/425846
Tonukari N-J. Cassava and the future of starch. Electron J Biotechnol. 2004; 7(1):1–8.
Ariza-Niet M, Sánchez M-T, Heller L-I, Ying H, Welch R-M, Glahn R-P. Cassava (Manihot esculenta) has high potential for iron biofortification. FASEB J. 2006; 20(4):20–34.
CATIE. Informe Anual 1985. Aspect of the fermentation of cassava starch III: Determination of organic acids. Turrialba; 1985. 127 p.
Oboh G, Akindahunsi A-A. Biochemical changes in cassava products (flour & gari) subjected to Saccharomyces cerevisae solid media fermentation. Food Chem. 2003; 82(4):599–602.
Hahn-Hägerdal B, Karhumaa K, Fonseca C, Spencer-Martins I, Gorwa-Grauslund MF. Towards industrial pentose-fermenting yeast strains. Applied microbiology and biotechnology. 2007 Apr 1; 74(5):937-53.
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