Chitosan, which is a derivative of chitin, particularly popular due to its biodegradable and renewable nature. However, the properties chitosan can be inconsistent extraction process natural origin, poses challenge use in composite materials as matrix. The tuned by controlling degree deacetylation (the extent acetyl groups are removed from chitin form chitosan) molecular weight. This paper pres...

Insect chitin possessing shell-like structure was prepared from the bumblebee corpses by a consequent treatment with 1M HCl and 1M NaOH. The bumblebee chitin was compared with crustacean (shrimp) chitin by using elemental analysis, Fourier-transform infrared (FT-IR) and solid-state (13)C cross-polarization magic angle spinning nuclear magnetic resonance (CP/MAS)-NMR spectroscopy and confocal mi...

Finding a cheap and easily recycling material that can capture CO2 under atmospheric pressure (1 atm) is of paramount importance. In this context, combining ionic liquids (ILs) with abundant natural materials, such as chitin-based biopolymers, appears an interesting alternative. work, four acetate-based ILs were selected to explore the solubility chitin, chitosan, carboxymethyl-chitosan. Using ...

Chitosan is an N-deacetylated biopolymer derivative of chitin (2-acetamido-2-deoxyβ-D-glucose through a β (1-4) linkage). The deacetylation is never complete. There is no specified nomenclature that describes the degree of deacetylation [1]. Chitin can be easily acquired from crab or shrimp shells. Its N-deacetylation is performed under alkali environment. The chitin that has been obtained from...

Chitin nanoparticles are responsible for the outstanding mechanical properties found in exoskeletons of crustaceans and finding applications many scientific technological fields. Following a Circular Economy approach, diverse biomass wastes can be valorized to reintroduced back into economic cycle while preventing biowaste landfill upon isolation chitin nanoparticles. Novel environmentally sust...

The use of chitin as raw material to obtain glucosamine hydrochloride at laboratory level was investigated. Chitin was extracted from shrimp shells by deproteinization, demineralization and depigmentation. Afterwards, glucosamine hydrochloride was produced in four main stages: (1) acid hydrolysis of chitin with 12 M hydrochloric acid using the reflux technique; (2) filtration of the solution to...

Fermentation based on Lactic acid bacteria (LAB) hold great promise for the management of a shrimp biowaste. Although shrimp biowaste is usually dried on beaches it encourages not only environmental pollution but also reduces the recoverable components. Experiments were carried out to test the Paediococcus bacteria for recovery of chitin and carotenoids. Paediococcus acidilactici ATCC 8042 was ...

Abstract Chitin and its derived products have immense economic value due to their vital role in various biological activities as well biomedical industrial application. Insects, microorganism crustaceans are the main supply of chitin but shell like shrimp, krill, lobsters crabs commercial sources. content an individual varies depending on structures possessing polymer species. In this study edi...

Chitin is mainly extracted from crustaceans, but this resource seasonally dependent and can represent a major drawback to satisfy the traceability criterion for high valuable applications. Insect resources are alternatives due their lower mineral content. However, deacetylation of chitin into chitosan still an expensive process. Therefore, we herein compare impact both DES/IL-pretreatments on e...