THIRTY YEARS OF PROGRESS IN CHITIN AND CHITOSAN
Journal Title: Progress on Chemistry and Application of Chitin and its Derivatives - Year 2008, Vol 0, Issue
Abstract
Although Braconnot’s discovery of chitin preceded Payen’s discovery of cellulose by almost 30 years, and the amount of chitin produced annually by biosynthesis is not that much less than cellulose, the industrial application of cellulose is staggeringly in advance of that of chitin/chitosan. One possible reason for this is the much greater ease of obtaining industrial quantities of cellulose and another is the much greater complexity of the chitosan molecule. We are only beginning to really understand chitosan and so perhaps we are at last on the verge of its commercial exploitation.
Authors and Affiliations
George AF Roberts
CYCLIC SORPTION AND DESORPTION OF REACTIVE DYES ONTO CHITOSAN BEADS
The study was undertaken to analyze cyclic sorption and desorption of four reactive dyes: Reactive Yellow 84, Reactive Red 11, Reactive Black 5 and Reactive Black 8. onto chitosan beads. In all experimental series, dye a...
ELECTROLYTIC METHOD FOR OBTAINING POROUS CHITOSAN STRUCTURES WITH HYDROXYAPATITE
The aim of this study was to develop a preparation method of porous chitosan structures, in the electrolysis of the chitosan solution in acetic acid. Chitosan in aqueous acetic acid is a polyelectrolyte. During the const...
BIOPOLYMER COMPOSITES BASED ON GALACTOGLUCOMANNANS (GGMS) AND MICRYSTALINE CHITOSAN (MCCH)
The article presents a method of extracting galactoglucomannas (GGMs) from softwood (spruce). GGMs were extracted using thermal and enzymatic treatment in an aqueous environment. The extracted GGMs, depending on the extr...
HETEROGENEOUS DEACETYLATION OF CHITIN DEGRADED WITH HYDROGEN PEROXIDE IN A MICROWAVE FIELD
Two-step procedure of obtaining chitosan with tailored properties has been elaborated. In the first step chitin from the shells of krill (Euphausia superba) and common shrimp (Crangon crangon [L.]) was subjected simultan...
SYNTHESIS OF SILVER NANOPARTICLES IN A CHITOSAN SOLUTION
In the present study silver nanoparticles were obtained using the ability of chitosan to form chelate compounds with metal ions and taking advantage of its reducing properties. The reduction process was conducted at the...