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| | Pullulan Basic information |
| | Pullulan Chemical Properties |
| Melting point | >248°C (dec.) | | storage temp. | 2-8°C | | solubility | H2O: 50 mg/mL, slightly hazy, colorless | | form | Powder | | color | White to Off-white | | Odor | at 100.00?%. odorless | | EPA Substance Registry System | Pullulan (9057-02-7) |
| Safety Statements | 24/25 | | WGK Germany | 3 | | RTECS | UO5470000 | | F | 3 | | TSCA | Yes | | HS Code | 29400090 |
| | Pullulan Usage And Synthesis |
| Description | Pullulan is a water-soluble, linear homopolysaccharide of glucose that is produced extracellularly by certain strains of the Aureobasidium pullulans fungus. This polysaccharide possesses adhesive properties and can be utilized to create strong, compression moldings, fibers, and oxygen-impermeable films. In the food industry, pullulan films are frequently used as coating or packaging material for dried foods, as a binder for tobacco, plant fertilizers, and seed coatings, as a low-viscosity filler in sauces and beverages, as well as a stabilizer and binder in food pastes. Additionally, this polysaccharide is often used to halt fungal growth in food. As for pharmaceutical applications, pullulan is used as a denture adhesive and an ingredient in sugar-coated pharmaceutical compositions to prevent the development of brownish coloring. Finally, pullulan finds application in lotions, shampoos, and cosmetics. | | Chemical Properties | It is a white, tasteless, and odorless non-crystalline powder that dissolves easily in water and dimethylformamide, but not in alcohol, ether, or oil. Its solution is viscous, stable, and neutral, with no gelling effect. The viscosity of the solution is the same as that of gum arabic, and it has a very good thickening effect of salt resistance, enzyme resistance, heat resistance, and pH value change resistance. It has strong film-forming properties, and the film formed after its aqueous solution is dried on a metal plate has strong gas barrier properties to oxygen and nitrogen. Moreover, it is suitable for making water-soluble edible films and is compatible with other water-soluble polymers. | | Uses | Pullulan has been used in a study to assess bone tissue engineering. It has also been used in a study that investigated anti-fog applications. | | Definition | pullulan: A water-soluble polysaccharidecomposed of glucose unitsthat are polymerized in such a wayas to make it viscous and impermeableto oxygen. Pullulan is used in adhesives, food packaging, andmoulded articles. It is derived fromthe fungus Aureobasidium pullulans. | | Biological Functions | Pullulan is a polysaccharide polymer that is derived from the Aureobasidium pullulans yeast and consists of D-Maltotriose units. It is used as a binder and film former in a variety of formulation categories (skin, make-up, and hair). Pullulan has been used in a study to assess bone tissue engineering. Addition of pullulan has improved the elongation at break of gelatin based edible film when the amount was 50% (wt. %). | | General Description | Pullulan Standards are mostly used to obtain molecular mass distribution of cellulosic samples. It mainly consists of polymaltotriose units linked together by α-(1→6) linkages. Pullulan is a biodegradable polysaccharide made by yeast fermentation, originally developed in Japan. Its adhesive and oxygen impermeable properties enable it to be used to coat pharmaceutical products. It is water soluble, odorless, and edible. | | References | [1] Timothy D. Leathers, Biopolymers Online, 2005,
[2] Ram S. Singh, Gaganpreet K. Saini and John F. Kennedy, Pullulan: Microbial sources, production and applications, Carbonhydrate Polymers, 2008, vol. 73, 515-531
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| | Pullulan Preparation Products And Raw materials |
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