Objective: To study preparation and characterization of chitosan from Catharsius Molossus processing discards and explore the feasibility of utilization of insects residue.
Methods: Preparation technique of chitosan was studied by orthogonal design,and properties were characterized by Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), etc.
Results: Preparation techniques were as follows: demineralizing: soaked for 30 min at 80 degrees C with 1.3 mol/L HCl, then kept for 12 h under room temperature. Deproteinization and delipidation: treated for 6 h at 90 degrees C with 4 mol/L NaOH. Decolorizing: soaked at room temperature with 3% KM-nO4, then treated with 2% oxalic acid at 70 degrees C. Deacetylating:treated for 5 h at 110 degrees C with 14 mol/L NaOH.
Conclusion: The technique is stable and feasible. The result also preliminarily showes that chitosan from Catharsius Molossus is better than shrimp's. It will be widely applied in biomedical and other industrial areas with such exciting properties.
Download full-text PDF |
Source |
|---|
Publication Analysis
Top Keywords
Similar Publications
A novel melanin complex displayed the affinity to HepG2 cell membrane and nucleus.
Mater Sci Eng C Mater Biol Appl
March 2021
School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150090, China. Electronic address:
Chitosan-melanin complex from Catharsius molossus L. has proven to possess superior pharmaceutical excipient performance and may be the new source of water-soluble protein-free natural melanin. Herein, it was enzymatically hydrolyzed into the chitooligosaccharide-melanin complex (CMC) whose main chemical units were composed of eumelanin and chitooligosaccharides and showed three-layer structures.
View Article and Find Full Text PDFPreparation, physicochemical and pharmaceutical characterization of chitosan from Catharsius molossus residue.
Int J Biol Macromol
September 2015
Mianyang Normal University, Mianyang 62100, China.
Polypeptide from Catharsius molossus L. is an active ingredient in the treatment of benign prostatic hyperplasia. The residue after extraction is harmful to the environment and is also a waste of resources.
View Article and Find Full Text PDFObjective: Decolorization of crude chitin from Catharsius molossus was studied in order to prepare chitosan with white color and high viscosity.
Methods: Some factors affecting decolorization such as the kind of decolorant reagent, H2O2 concentration, pH, solid-liquid ratio, temperature and other factors were studied by single factor test and orthogonal design.
Results: The best decolorization process of chitin from Catharsius molossus was as follows:treated with 15 times of 15% H2O2 at 45 degrees C.
[Preparation and preliminary characterization of chitosan from Catharsius molossus discards].
Zhong Yao Cai
July 2012
Experimental Center of Biological Sciences, Southwest University of Science and Technology, Mianyang 621010, China.
Objective: To study preparation and characterization of chitosan from Catharsius Molossus processing discards and explore the feasibility of utilization of insects residue.
Methods: Preparation technique of chitosan was studied by orthogonal design,and properties were characterized by Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), etc.
Results: Preparation techniques were as follows: demineralizing: soaked for 30 min at 80 degrees C with 1.
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!