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dc.contributor.authorHatheway, Savannah
dc.date.accessioned2018-12-19T12:37:35Z
dc.date.available2018-12-19T12:37:35Z
dc.identifier.urihttp://hdl.handle.net/10222/75057
dc.description.abstractThe present research is focused on the application of Aspergillus oryzae for the degradation of biodegradable plastics and conventional plastics. By addition of inducing agents and altering the initial pH of the culture media, the biodegradation process of biodegradable film was enhanced. The use of inducing substrates olive oil and yeast extract significantly increased the esterase activity of A. oryzae. The alkaline initial pH levels resulted in 20% mass loss of the PBAT/PLA film and significantly increased the esterase activity of A. oryzae. By addition of pro-oxidants, conventional plastics are made more susceptible to UV irradiation and subsequent biodegradation. Colorimetry analysis showed significant changes in the surface of the recalcitrant plastics with pro-oxidant exposure, UV irradiation, and incubation with A. oryzae. Fourier transform infrared analysis showed the production of carbonyl groups with pro-oxidant exposure and UV irradiation, followed by degradation of these groups after incubation with A. oryzae.en_US
dc.language.isoenen_US
dc.subjectplasticen_US
dc.subjectbiodegradationen_US
dc.subjectAspergillus oryzaeen_US
dc.titleANALYSIS OF PLASTIC DEGRADATION BY THE FILAMENTOUS FUNGUS ASPERGILLUS ORYZAEen_US
dc.date.defence2018-12-05
dc.contributor.departmentFaculty of Agricultureen_US
dc.contributor.degreeMaster of Scienceen_US
dc.contributor.external-examinerPaul Arnolden_US
dc.contributor.graduate-coordinatorGordon Priceen_US
dc.contributor.thesis-readerChibuike Udenigween_US
dc.contributor.thesis-readerBalakrishnan Prithivirajen_US
dc.contributor.thesis-supervisorGordon Priceen_US
dc.contributor.ethics-approvalNot Applicableen_US
dc.contributor.manuscriptsNot Applicableen_US
dc.contributor.copyright-releaseNot Applicableen_US
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