carboxyl-methyl chitosan / spec10 / Dalwoo

TEST	SPECIFICATION	RESULT	REMARK
Appearance:	White or Yellow, Powder	Pass	Gardner No.Max.2
Density	Pass 25 - 200 Mesh	Pass	Sieve No 25-100 pass ration(Fisher)
Moisture Content	Less than 10%	Pass	Dry 3hr at 105 deg. C.
Residue on Ignition	Less than 0.5%	Pass	Ashing Method
Protein Content	Less than 0.3%	Pass	Kjeldal method
Degree of Deacetylatione	70 - 100%	86%	Colloidal method
Viscosity	Less than 5cps	2.3(1%sol.)	0.5% or 1% Chitosan in 1% distilled water by stirring 1hr. Measure with Brookfield viscometer (Model DV-II+) LV Spindle #0, 30 deg.C
Insolubles	Less than 1% insolubility	0.5%	Dissolved 10g of chitosan in 50ml of 1% distilled water chitosan solution. Chitosan solution to which added 200 ml distilled water was stirred 1hr. Filtration with a GF/C and washed with 20ml acetone. Dry residue at 105 deg. C
Heavy metals(As)	Less than 10 ppm	1.0ppm	ICP Analysis
Heavy metals(Pb)	Less than 10 ppm	1.0ppm	ICP Analysis
pH	7 - 9	7.8	Dispersed 1g of chitosan in 99ml of distilled water after stirred 15 min.
Odor	No taste and smell
Packing	10kgs/20kgs net each		Corrugated carton box with PE liner

Chitin	Food grade chitosan	Pharmaceutical grade chitosan
Technical grade chitosan	Chitosan Oligomer	Liquid Chitosan(Food Grade)