pullulan

Pullulan is natural water-soluble polysaccharide. Dry pullulan powders are white granular solid. There are two mainly features of the product: structure of elastic, relatively large solubility. Pullulan has the strong properties of film-forming, gas barrier, plasticity and viscosity.

It is easily soluble in water, non-toxic and harmless, colorless, odorless, which has been widely used in pharmaceutical, food, light industry, chemical and oil fields.

Process Flow Diagram：Slant culture—Seed culture—Main culture—Microfiltration—Decolorization—Deionization—Intermediate evaporation—Decolorization—Final filtration—Final evaporation—Drying—Pulverization and classification—Filling scaling packing--Storage Molecular formula: (C37H62O30)n Molecular weight: 200 thousand dalton

Package: 25kg/bag or 25kg/drum or packed according to customer's request.

Specification of Pullulan ITEM SPECIFICATION Appearance White to slightly yellowish powder, tasteless and odorless Pullulan purity(dry basis) ﹥90% Viscosity (10 wt% 30°) 100～180 mm2 Mono-,di- and oligosaccharides ≤ 5.0% (dry basis) Total nitrogen ≤ 0.05% Loss on dry ≤ 5.0% Lead(Pb) ≤ 0.2 ppm Arsenic ﹤2 ppm Heavy metals ﹤5 ppm Ash ≤ 1.0% pH (10% w/w aqueous solution) 5.0～7.0 Yeast and moulds ≤ 100 /(CFU/g) Coliforms ﹤3.0 /(MPN/g)