CODIFICATION

DES PRODUITS

FRANCE CHITINE
Produit naturel
Chitine et chitosans
Production
Utilisations
Capacité de production
Codification des produits

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.

CODIFICATION of CHITOSANS

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

>4000

High viscosity

<2000>500

Medium viscosity

<500>100

Low viscosity

<100>20

Very low viscosity

<20>5

Extra low viscosity

<5

C

Degree of deacetylation

for DDA lower than 80%

for DDA between 80 and 85%

for DDA between 85 and 90%

for DDA more than 90%