Appearance White to off-white powder Solubility Clear colorless solution at 1G plus 100ml water Water 10% max Get strength(1% Gel) 1200g/cm2 min EEO(Electroendosmosis(-Mr) 0.13 max Sulfate 0.15% max Ash 0.5% max Gelling point(1.5% Gel) 36℃±1.5℃ Melting point(1.5% Gel) 88℃±1.5℃ DNase None RNase None Protease None Endonuclease/ligase inhibitory factor None

Chitosan 9012-76-4 90%,95%

Appearance White or slightly yellow crystals Assay by HPLC 99% min Specific Rotation -18.0 to -22.00 =4,H2O Order taste Characteristic Loss on drying Not more than 3.00% State of solution Clear and colorless 95% Total Ash Not more than 4.00% Heay Metals As Pb Cd Hg Sum Not more than 3.0 ppm Not more than 8.0ppm Not more than 0.5ppm Not more than 0.5ppm Not more than 20ppm Aflatoxins B1 Sum of B1+B2+G1+G2 Not more than 5ppb Not more than 10ppb Microbiological quantity Total plate count Yeast &Mold E.Coli. Salmonella PH.Eur.category 3A Not more than 1000cfu/g Not more than1000cfu/g Negative Negative

87-99-0 Xylitol C5H12O5 ≥99.0 White crystalline powder,≥99.0

Appearance White crystal or crystalline powder, odorless Assay 99%min Transmittance(10% water solution) 98%min Water 0.3% max Residue on ignition 0.05% max Specific rotation +18.5°～+19.5° PH 5.0-7.0 Chloride 0.005% max Sulphate 0.005% max Total bacterial ≤3000cfu/g Coli. ≤3MPN/g Molds and yeasts ≤25cfu/g

Appearance White powder or light yellow powder Total FOS（on dry matter） ≥95.0% Glucose+fructose+sugar（on dry matter） ≤5% PH value 4.5-7.0 Water ≤5.0 Sulphate ash,% ≤0.4 Arsenic(As) (mg/kg) ≤1 Lead(Pb) (mg/kg) ≤0.5 Total Aerobic Count(CFU/g) ≤1000 Total Coliform (MPN/100g) ≤30 Mold ≤25 Yeast ≤25 Pathogen No exist

BETA-D-GLUCOPYRANOSYL(1-4)-D-GLUCOPYRANOSE 133-99-3 C12H22O11 "98%min " white crystalline powder 98%min

Appearance White or almost white powder Identification Positive Assay 99%min Melting point 130-136℃ Specific rotation +14°~ +15° Loss on drying 1.0% max Residue on ignition 0.2% max Heay metals(as Pb) 10ppm max

Appearance White or almost white powder Identification Positive Melting point 97-1030C Heay metals 20ppm Max Loss on drying 1.0% Max Assay 98%Min

Appearance White crystalline powder Assay 98.0～102.0% [α]D20 Specific rotation ＋84.0°～＋87.5° Water ≤2.0% pH of 10% aqucous solution 5-8 Heay metals(Pb) ≤10ppm Lead ≤1ppm Arsenic ≤1ppm Residue on lgnition ≤0.2% Hydrolysis products ≤1.5% Two sugar chloride ≤0.5% Single sugar chloride ≤0.1% Triphenylphosphine oxide ≤150 ppm Methanol ≤0.1% Total plate counmt NMT 250/g Mold NMT 50/g Escherichia Coli Negative Salmonella spp. Negative

Appearance White or almost white powder Assay 98% Identification Positive Specific optical rotation +13°- +16°     Water insoluble 0.1%max PH 5.8-7.0 Heay mentals 10ppm MAX Loss on drying 1% MAX

Appearance White or almost white powder Identification A)IR B)TLC Specific optical rotation -10°～-14° Melting point 155-160℃ Loss on drying ≤ 1.0% Hevy metals ≤20ppm Residue on ignition ≤0.1% Assay ≥98.0%