Introduction
Pullulan is an extracellular water-soluble viscous polysaccharide similar to pectin and xanthan gum produced by fermentation of Aspergillus oryzae. It is a special microbial polysaccharide discovered in 1938.Linear, neutral glucan consisting mainly of maltotriose units connected by -1,6 glycosidic bonds.
It is produced by fermentation from a food grade hydrolysed starch using a non-toxin-producing strain of Aureobasidium pullulans. After completion of the fermentation, the fungal cells are removed by microfiltration, the filtrate is heat-sterilised and pigments and other impurities are removed by adsorption and ion exchange chromatography.
Pullulan is a stable, non-ionic and non reducing polysaccharide that is easily soluble in water and can be used as a viscous, neutral, and non gelling aqueous solution. The film made is transparent, colorless, odorless, non-toxic, tough, highly oil resistant, edible, and can be used for food packaging. Its luster, strength, and flexural performance are better than those of films made from high chain starch.
Due to its unique structure and properties, this polysaccharide has broad application prospects in industries such as medicine, food, petroleum, and chemical. Due to its ability to be degraded and utilized by microorganisms in nature without causing environmental pollution, it is known as a pollution-free plastic.
Features
Pullulan is structurally elastic and has a relatively high solubility. Pullulan has strong film-forming properties, gas barrier properties, plasticity, and viscosity, and has excellent characteristics such as easy solubility in water, non-toxic and harmless, colorless and odorless. It has been widely used in fields such as medicine, food, light industry, chemical industry, and petroleum.
Applications
- Adhesive molding agents for the pharmaceutical and health product capsule industry, as well as cosmetics.
- Food quality improvers and thickeners.
- A water-soluble packaging material used to prevent oxidation.
- Low calorie food ingredients for staple foods and pastries.
Application in the preservation of agricultural products
Due to its excellent film-forming properties, pullulan polysaccharides can be widely used for the preservation of agricultural products such as fruits, vegetables, and eggs.
Application in the preservation of seafood products
Research has shown that short stem mold polysaccharides, as a new type of marine product membrane protector, can effectively inhibit the accumulation of volatile base nitrogen in the body of marine products, and also have a good protective effect on water evaporation in the body of marine products.
Application in the food processing industry
As a low calorie food raw material for staple food and pastries, as well as an improver and plasticizer for food quality, it is widely used in the food industry.
Application in the field of environmental protection
The product has been applied to the purification treatment of high turbidity water, the first level enhanced treatment of urban sewage, and the treatment of wastewater in monosodium glutamate production, forming a complete process and technology.
Package of Pullulan
Net Weight per package : 10KGS N.W. Per Carton.
Shelf life: 24MONOTHS.
Storage condition：Store in a cool and dry place under normal room temperature.
Other Information of Pullulan
Melting point—decomposition under 250 ℃ to 280 ℃
Incompatible material—organic solvents such as acetone, ethanol or ether.
