title: Comparison of chitin structures isolated from seven Orthoptera species.
abstract: Differences in the physichochemical properties of the chitin structure of the exoskeleton of seven species from four genera were investigated in this study. The same method was used to isolate the chitin structure of the seven species. The physicochemical properties of the isolated chitins were revealed by ESEM, FTIR, TGA and XRD analyses. The FTIR, TGA and XRD results from the chitin samples were similar. The surface morphologies of the chitins were investigated by ESEM and interesting results were noted. While the surface morphologies of the chitins isolated from two species within the same genus were quite different, the surface morphologies of chitins isolated from species belonging to different genera showed similarity. It was determined that the dry weight chitin contents of the grasshopper species varied between 5.3% and 8.9%. The results of molecular analysis showed that the chitins from seven Orthoptera species (between 5.2 and 6.8 kDa) have low molecular weights. Considering that these invasive and harmful species are killed with insecticides and go to waste in large amounts, this study suggests that they should be collected and evaluated as an alternative chitin source.
authors.affiliation: Department of Biotechnology and Molecular Biology, Faculty of Science and Letters, Aksaray University, 68100 Aksaray, Turkey; Science and Technology Application and Research Center, Aksaray University, 68100 Aksaray, Turkey. Electronic address: muratkaya3806@yahoo.com.
authors.forename: Murat
authors.initials: M
authors.lastname: Kaya
authors.affiliation: Fisheries Programme, Keşan Vocational College, Trakya University, 22800 Keşan, Edirne, Turkey. Electronic address: serdogantrakya@gmail.com.
authors.forename: Sevil
authors.initials: S
authors.lastname: Erdogan
authors.affiliation: Science and Technology Application and Research Center, Aksaray University, 68100 Aksaray, Turkey; Guzelyurt Vocational School, Aksaray University, Guzelyurt, Aksaray, Turkey. Electronic address: abbasmol19@gmail.com.
authors.forename: Abbas
authors.initials: A
authors.lastname: Mol
authors.affiliation: Science and Technology Application and Research Center, Aksaray University, 68100 Aksaray, Turkey; Department of Chemistry, Faculty of Science and Letters, Aksaray University, Aksaray, Turkey. Electronic address: talatbaran66@hotmail.com.
authors.forename: Talat
authors.initials: T
authors.lastname: Baran
mesh_terms: D000818:Animals; D002686:Chitin / Q000737:chemistry* / Q000302:isolation & purification / Q000648:ultrastructure; D008968:Molecular Conformation; D008970:Molecular Weight; D009987:Orthoptera / Q000737:chemistry*; D010936:Plant Extracts / Q000737:chemistry / Q000302:isolation & purification; D017550:Spectroscopy, Fourier Transform Infrared; D013818:Thermogravimetry; D014961:X-Ray Diffraction
chemical_list: D010936:Plant Extracts; D002686:Chitin
keywords: Characterization; Chitin; Orthoptera