TEST

SPECIFICATION

RESULT

REMARK

Appearance:

White or Yellow, Powder or flake

Pass

Gardner No.Max.2

Density

Pass 25 - 200 Mesh

80 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%

95%

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

10kg / 20kg net each

Corrugated carton box with PE liner

Dalwoo-chitoSan supply first quality bulk chtin, chitosan and chitosan oligomer in various grades at a competitive price. Please contact us for further information.

Chitosan Oligomer

Food grade chitosan

Carboxylmethyl Chitosan

Chitin

Technical grade chitosan

Liquid Chitosan(Food grade)