title: Isolation and characterization of chitosan from different local insects in Egypt.
abstract: Chitin was extracted from four different local sources: the shrimp (Penaeus monodon), the desert locust (Schistocerca gregaria), the honey bee (Apis mellifera) and the beetles (Calosoma rugosa). Chitosan was then obtained by deacetylation of chitin and physicochemically characterized using the Fourier transform infrared (FTIR) and X-ray diffraction. The moisture content, water binding capacity, fats binding capacity, ash content were determined and chitosans morphology was visualized using the scanning electron microscope (SEM). The difference between the obtained chitosans from three insect sources and α-chitosan from shrimp in terms of crystallinity, fibrous structure was discussed.
authors.affiliation: Chemistry Department, Faculty of Science, Cairo University, 12631, Egypt.
authors.forename: Narguess H
authors.initials: NH
authors.lastname: Marei
authors.affiliation: Entomology Department, Faculty of Science, Cairo University, 12631, Egypt.
authors.forename: Emtithal Abd
authors.initials: EA
authors.lastname: El-Samie
authors.affiliation: Nanotechnology Unit, Agriculture Research Centre, Cairo 12631, Egypt.
authors.forename: Taher
authors.initials: T
authors.lastname: Salah
authors.affiliation: Chemistry Department, Faculty of Science, Cairo University, 12631, Egypt.
authors.forename: Gamal R
authors.initials: GR
authors.lastname: Saad
authors.affiliation: Chemistry Department, Faculty of Science, Cairo University, 12631, Egypt. Electronic address: aelwahy@hotmail.com.
authors.forename: Ahmed H M
authors.initials: AH
authors.lastname: Elwahy
mesh_terms: D000107:Acetylation; D000818:Animals; D002686:Chitin / Q000737:chemistry / Q000302:isolation & purification; D048271:Chitosan / Q000737:chemistry* / Q000302:isolation & purification; D004534:Egypt; D005223:Fats / Q000737:chemistry; D007313:Insecta / Q000737:chemistry*; D017550:Spectroscopy, Fourier Transform Infrared; D014867:Water / Q000737:chemistry; D014961:X-Ray Diffraction
chemical_list: D005223:Fats; D014867:Water; D002686:Chitin; D048271:Chitosan
keywords: Characterization; Chitin; Chitosan; Deacetylation; Insects