chitosan DAC 80% free sample common density chitosan

 Specification

Standard

Appearance

off white powder

Odor

Odorless

Identification

                                                     Positive by FTIR

Deacetylated  Degree

≥80%

Density

≥0.20g/ml

Loss on drying

≤12.0%

Ash  Content

≤1.0%

Viscosity

According to business requirement                  (determined by 1% chitosan dissolved   in 1% Acetic Acid Solution at 20 ℃)

Heavy Metals

≤10ppm

Iron (Fe)

                                                                ≤50ppm                                                        

Particle size

NLT 100% thru 80 mesh

Microbial Contamination

TVMAC

NMT  1000cfu per gram

Yeast & Moulds

NMT 100 cfu per gram

Enterobacteriaceae

NMT100 cfu per gram

E.Coli

ND per gram

Salmonellae

ND per 10 grams