Pullulan, an extracellular water-soluble microbial polysaccharide produced by strains of aureobasidium pullulans is a linear -d-glucan made mainly of maltotriose repeating units interconnected via -(16)linkages.It is a kind of characteristic polysaccharide, which was first found by r.Bauer in 1938.The molecular weight of pullulan is from 4.8104 to 2.2106 dol.The average molecular weight of commodity pullulan is 2105consisting approximately of 480 maltotrioses.

Descriptions:CAS NO.9057-02-7c water-soluble polysaccharide
Appearance:White powder
Characteristic:Hydrolyzed by pullulanase into more than 94.0 % maltotriose
Moisture  6.0 % max.
Residue on ignition:0.1 % max.
Protein:0.1 % max
Arsenic (as2o3):2 ppm max.
Heavy metals (as pb):5 ppm max.
Viscosity:140 cst (10 wt%, 30 c)
Particle size:1.70 mm max.
Microbiology:
Total plate count:  300 cfu/g max.
Coliforms:Negative

Supply gelatin for food and madicine
Technical Standard:
Item
Jelly Strength Unit
(6.67%, 10ºC) Bloom g ¡Ý 280 240 220 200 160
Viscosity (15%, 40ºC) ºE ¡Ý 18 16 14 12 10
(6.67% 60ºC) mpa
s ¡Ý 5.6 5.3 5.0 4.5 4.0
(6.67%, 60ºC)mps ¡Ý 58 53 47 43 38
Viscosity Degradation (6.67%, 37ºC)% ¡Ü 10 10 15 15 20
Moisture (105ºC) % ¡Ü 10 12 12 14 14
Ash (650ºC) % ¡Ü 0.8 0.8 1.0 1.0 1.5
Transparency (5%, 40ºC) mm ¡Ý 300 260 220 200 180
PH (1%, 35ºC) 4.0-6.5
SO2 ppm ¡Ü 30 30 50 50 100
Heavy Metal ppm ¡Ü 20 20 30 30 50
Arsenic ppm ¡Ü 0.5 0.5 0.6 0.6 0.8
Insolubles % ¡Ü 0.1 0.1 0.1 0.1 0.2
Total Bacterial Entries/g ¡Ü 400 400 500 500 1000
Colibacillus and Salmonella 0