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dc.contributor.authorLeke-Aladekoba, Adedayo Aina
dc.date.accessioned2018-12-06T15:36:54Z
dc.date.available2018-12-06T15:36:54Z
dc.identifier.urihttp://hdl.handle.net/10222/75013
dc.description.abstractChitin/chitosan is a natural biopolymer that has many applications in agriculture, medicine and biotechnology. Although synthesized by different organisms, crustacean shells dominate the production. The present study focused on the extraction of chitin from an insect source using conventional and alternative extraction methods; enzyme-, microwave- and ultrasound-assisted extraction, and compared the physicochemical characteristics of the end products. The biological activities of chitosan from three sources was also investigated. The conventional extraction method from BSFM resulted in 9.7% chitin yield, while the enzyme-, microwave- and ultrasound-assisted extractions gave 42.3%, 11.4% and 13.7% chitin on dry weight basis, respectively. FTIR patterns displayed bands corresponding to the stretching and vibration of OH, NH and CO bonds, confirming the presence of α-chitin/chitosan. Chitosan samples from three different sources displayed both antioxidant and antimicrobial activity. Chitosan MW and DD both had effects on biological activities; high MW chitosan showed better antimicrobial activity lower MW chitosan.en_US
dc.language.isoen_USen_US
dc.subjectChitinen_US
dc.subjectChitosanen_US
dc.subjectBlack soldier fly mealen_US
dc.subjectExtraction technologiesen_US
dc.subjectAntioxidant activityen_US
dc.subjectAntimicrobial activityen_US
dc.titleComparison of extraction methods and characterisation of chitin and chitosan with antimicrobial and antioxidant properties from black soldier fly (Hermetia illucens) mealen_US
dc.date.defence2018-11-28
dc.contributor.departmentFaculty of Agricultureen_US
dc.contributor.degreeMaster of Scienceen_US
dc.contributor.external-examinern/aen_US
dc.contributor.graduate-coordinatorDr. Gordon Priceen_US
dc.contributor.thesis-readerDr. Svetlana Yurgelen_US
dc.contributor.thesis-readerDr. Chibuike Udenigween_US
dc.contributor.thesis-supervisorDr. Lord Abbeyen_US
dc.contributor.thesis-supervisorDr. Beth Masonen_US
dc.contributor.ethics-approvalNot Applicableen_US
dc.contributor.manuscriptsNot Applicableen_US
dc.contributor.copyright-releaseNot Applicableen_US
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