CODIFICATION DES PRODUITS FRANCE CHITINE Produit naturel Chitine et chitosans Production Utilisations Capacité de production Codification des produits METHODS OF ANALYSES OF CHITOSAN Appearance Particle size Loss on drying Loss on ignition pH Viscosity Degree of deacetylation Heavy metal Pesticides Bacteriology Gross observation JIS standard sieves 100 grs sample in oven at 110 °C for three hours 5gr in furnace at 900 °C for three hours 1% distill water solution Brook-field viscosimeter LVT model Infra red spectrophotometer Mineralisation and titrition by atomic absorption   Standard methods described in Guildelines for sea Food. Total Plate Count, Coliform, Staphyloccus aureus, Salmonelle sp., vibrio sp. CHITOSAN CODIFICATION Chitosan is defined by following code according to lot number Code is given by 3 numbers   A Origine and grade 1 Squid bone 2 Shrimp shell cosmetic and pharmaceutical grade 3 Shrimp shell food grade 4 Shrimp shell technical grade     B Viscosity in CPS (1gr of chitosan in 99gr acetic acid 1% solution at 25 °C) Very high viscosity 1 >4000 High viscosity 2 <2000>500 Medium viscosity 3 <500>100 Low viscosity 4 <100>20 Very low viscosity 5 <20>5 Extra low viscosity 6 <5   C Degree of deacetylation 1 for DDA lower than 80% 2 for DDA between 80 and 85% 3 for DDA between 85 and 90% 4 for DDA more than 90% Produit naturel | Utilisations | Chitine&chitosans |Accueil | Contact Capacité de production | Production| | Codification des produits Une question, un problème sur le site, contacter notre webmaster