TEST

SPECIFICATION

RESULT

REMARK

Appearance:

White or Yellow, Powder or flake

Pass

Gardner No.Max.2

Density

Pass 25 - 200 Mesh

60 Mesh

Sieve No 25-100 pass ration(Fisher)

Moisture Content

Less than 10%

7.5%

Dry 3hr at 105 deg. C.

Residue on Ignition

Less than 0.2%

0.10%

Ashing Method

Protein Content

Less than 0.3%

0.18%

Kjeldal method

Degree of Deacetylatione

70 - 100%

90%

Colloidal method

Viscosity

5 cps and less 

2.78

0.5% or 1% Chitosan in 1% acetic acid. by stirring 1hr. Measure with Brookfield viscometer (Model DV-II+) LV Spindle #0 at 30 deg.C

Insolubles

Less than 1% insolubility 

<0.1%

Dissolved 10g of chitosan in 50ml of 1% aceticacid 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

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

Dalwoo-chitoSan supply first quality bulk chitin, chitosan and chitosan oligosaccharide in various grades at competitive price. Please contact us for further infomation.

Chitosan Oligosaccharide

Pharmaceutical grade Chitosan

Chtin

Carboxylmethyl Chitosan

Technical grade Chitosan

Liquid Chitosan(Food Grade)