Please use this identifier to cite or link to this item: https://hdl.handle.net/10321/3356
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dc.contributor.advisorDeenadayalu, Nirmala-
dc.contributor.advisorPermaul, Kugen-
dc.contributor.authorZondo, Sandisiwe Gladnessen_US
dc.date.accessioned2019-10-23T11:50:30Z-
dc.date.available2019-10-23T11:50:30Z-
dc.date.issued2019-08-08-
dc.identifier.other741069-
dc.identifier.urihttp://hdl.handle.net/10321/3356-
dc.descriptionSubmitted in fulfillment of the academic requirement of the degree of Masters of Applied Science, Chemistry: Durban University of Technology, Durban, South Africa, 2019.en_US
dc.description.abstractIn this study, a biodegradable copolymer poly(3-hydroxybutyrate-co-3-hydroxyvalerate) was produced from an agricultural by-product namely corn silage through a fermentation process using Thermus thermophilus HB8. Two types of corn silage pre-treatment processes viz. deionized water treatment (unhydrolysed) and acid hydrolysis were carried out at different loadings of corn silage (6%, 12%, 24% and 48% m/v), at 70°C for 50 h. Both pre-treatments were able to produce biopolymer where 6%, 12%, 24% and 48% unhydrolyse pre-treatment yielded 12%, 20.44%, 28.42% and 18.65% PHA, respectively; 6%, 12%, 24% and 48% acidic pre-treatment yielded 42.23%, 49.53%, 56,41% and 61.32% PHA, respectively. The extracted polymer was characterized by Fourier transform infrared spectroscopy (FT-IR) and ultraviolet-visible spectroscopy (UV-Vis) to study the characteristic bands; gas chromatography was used to identify the PHA monomers of the extracted methyl esters; scanning electron microscopy (SEM) was used to study the morphology of the bioplastic products; tensile testing was used to study the tensile properties of the bioplastics.en_US
dc.format.extent155 pen_US
dc.language.isoenen_US
dc.subject.lcshCopolymers--Biodegradationen_US
dc.subject.lcshCorn--Silageen_US
dc.subject.lcshSilage--Fermentationen_US
dc.titleProduction and characterization of polyhydroxyalkanoates (PHA) from corn silage using Thermus thermophilus HB8en_US
dc.typeThesisen_US
dc.description.levelMen_US
dc.identifier.doihttps://doi.org/10.51415/10321/3356-
local.sdgSDG06-
item.grantfulltextopen-
item.cerifentitytypePublications-
item.openairetypeThesis-
item.languageiso639-1en-
item.fulltextWith Fulltext-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
Appears in Collections:Theses and dissertations (Applied Sciences)
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