Bioethanol Potentials of Corn Cob Hydrolysed Using Cellulases of Aspergillus niger and Penicillium decumbens

dc.contributor.authorSaliu, Bolanle Kudirat
dc.contributor.authorSani, Alhassan
dc.date.accessioned2024-05-03T14:48:46Z
dc.date.available2024-05-03T14:48:46Z
dc.date.issued2012
dc.description.abstractCorn cob is a major component of agricultural and domestic waste in many parts of the world. It is composed mainly of cellulose which can be converted to energy in form of bioethanol as an efficient and effective means of waste management. Production of cellulolytic enzymes were induced in the fungi Aspergillus niger and Penicillium decumbens by growing them in mineral salt medium containing alkali pre-treated and untreated corn cobs. The cellulases were characterized and partially purified. Alkali pre-treated corn cobs were hydrolysed with the partially purified cellulases and the product of hydrolysis was fermented using the yeast saccharomyces cerevisae to ethanol. Cellulases of A. niger produced higher endoglucanase and exoglucanase activity (0.1698 IU ml-1 and 0.0461 FPU ml-1) compared to that produced by P. decumbens (0.1111 IU ml-1 and 0.153 FPU ml-1). Alkali pre-treated corn cob hydrolysed by cellulases of A. niger yielded 7.63 mg ml-1 sugar which produced 2.67 % (v/v) ethanol on fermentation. Ethanol yield of the hydrolysates of corn cob by cellulases of P. decumbens was much lower at 0.56 % (v/v). Alkali pre-treated corn cob, hydrolysed with cellulases of A. niger is established as suitable feedstock for bioethanol production.
dc.description.sponsorshipSelf with coauthors
dc.identifier.citationSaliu, B.K. and Sani A. (2012): Bioethanol Potentials of Corn Cob Hydrolysed Using Cellulases of Aspergillus niger and Penicillium decumbens EXCLI Journal. 11:468-479. Published by Leibniz Research Centre for Working Environment and Human Factors, Germany. Available online at https://www.excli.de/index.php/excli/past_issues_2012
dc.identifier.issn1611-2156
dc.identifier.urihttps://uilspace.unilorin.edu.ng/handle/123456789/13564
dc.language.isoen
dc.publisherLeibniz Research Centre for Working Environment and Human Factors, Germany
dc.relation.ispartofseries11
dc.subjectCorn cob
dc.subjectendoglucanase
dc.subjectexoglucanase
dc.subjectsugar
dc.subjectethanol
dc.titleBioethanol Potentials of Corn Cob Hydrolysed Using Cellulases of Aspergillus niger and Penicillium decumbens
dc.title.alternativeEXCLI Journal
dc.typeArticle

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