Physicochemical comparison of chitin and chitosan obtained from larvae and adult Colorado potato beetle (Leptinotarsa decemlineata)

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dc.authoridKaya, Murat -- 0000-0001-6954-2703; CAKMAK, Yavuz Selim -- 0000-0001-8954-5485; BARAN, TALAT -- 0000-0003-0206-3841; MENTES, AYFER -- 0000-0003-3946-4075
dc.contributor.authorKaya, Murat
dc.contributor.authorBaran, Talat
dc.contributor.authorErdoğan, Sevil
dc.contributor.authorMenteş, Ayfer
dc.contributor.authorAşan Özüsağlam, Meltem
dc.contributor.authorÇakmak, Yavuz Selim
dc.date.accessioned13.07.201910:50:10
dc.date.accessioned2019-07-29T19:26:19Z
dc.date.available13.07.201910:50:10
dc.date.available2019-07-29T19:26:19Z
dc.date.issued2014
dc.departmentSabire Yazıcı Fen Edebiyat Fakültesi
dc.description.abstractChitins and chitosans obtained from larva and adult Coloradopotato beetles (Leptinotarsa decemlineata) were physico-chemically characterized and differences between adults and larvae were identified. The dry weight chitin contents of the adult Colorado potato beetles and larvae were determined as 20% and 7%, respectively. The chitin produced chitosan yields of 72% from the adult Colorado potato beetles and 67% from the larvae. FTIR analysis showed that the isolated chitins were in the alpha form. Crystalline index values, determined by XRD, were 72% for larvae and 76% for adults. The degradation temperatures of the isolated chitin structures were measured by TGA, and this showed that the chitin from adult Colorado potato beetles had a more stable structure than that from the larvae. The surface morphologies of the isolated chitin and chitosan structures were analysed with SEM and it was revealed that these structures consisted of nanofibres. According to elemental analysis, the purity of chitin and chitosan from adults was greater than that from the larvae. The results of molecular analysis showed that the chitosans from adults (2.722 kDa) and larvae (2.676 kDa) of the Colorado potato beetle have low molecular weights. Antimicrobial and antioxidant activities of both adult and larval chitosans were determined. The adult potato beetle is more appropriate than the larvae as an alternative chitin source because of the fact that its dry weight chitin content, chitosan yield and purity of chitin are higher than those from the larvae, and its antimicrobial and antioxidant activities are also higher than those from the larvae. (C) 2014 Elsevier B.V. All rights reserved.
dc.identifier.doi10.1016/j.msec.2014.09.004
dc.identifier.endpage81en_US
dc.identifier.issn0928-4931
dc.identifier.issn1873-0191
dc.identifier.pmid25491803
dc.identifier.scopusqualityN/A
dc.identifier.startpage72en_US
dc.identifier.urihttps://doi.org/10.1016/j.msec.2014.09.004
dc.identifier.urihttps://hdl.handle.net/20.500.12451/5536
dc.identifier.volume45en_US
dc.identifier.wosWOS:000347582600010
dc.identifier.wosqualityN/A
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.indekslendigikaynakPubMed
dc.language.isoen
dc.publisherElsevier Science Bv
dc.relation.ispartofMaterials Science & Engineering C-Materials for Biological Applications
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectBiomaterial
dc.subjectNanofibre
dc.subjectPorosity
dc.subjectFTIR
dc.subjectTGA
dc.subjectXRD
dc.titlePhysicochemical comparison of chitin and chitosan obtained from larvae and adult Colorado potato beetle (Leptinotarsa decemlineata)
dc.typeArticle

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