What is Pullulan ? |
| Author : Date : 2015/4/2 5:51:24 |
l INCI name: Pullulan l CAS No. 9057-02-7 l Molecular formula: (C6H12O5)n l Product name: 1,4 -1,6a-D-Glucan, 1, 6a-linked maltotriose l Neutral, polysaccharide produced by the growth of the fungus Aureobasidium pullulans. l A linear homopolysaccharide of glucose which is -(1 ~6) linked maltotriose.
Pullulan is a polysaccharide polymer consisting of maltotriose units, also known as α-1,4- ;α-1,6-glucan'. Three glucose units in maltotriose are connected by an α-1,4 glycosidic bond, whereas consecutive maltotriose units are connected to each other by an α-1,6 glycosidic bond. Pullulan is a naturally occurring polysaccharide, with an average molecular weight of about 200,000 daltons. Pullulan is produced from starch by the fungus Aureobasidium pullulans. This unique linkage pattern of pullulan endows the polymer with distinctive physical traits, including adhesive properties and the capacity to form fibers, compression moldings, and strong, oxygenimpermeable films. Pullulan is mainly used by the cell to resist against desiccation and predation, the presence of this polysaccharide also facilitate diffusion of molecules both into and out of the cell. The presence of Pullulan in the environnement next to the cell favorise the formation of biofilm. As an edible, mostly tasteless polymer, the chief commercial use of Pullulan is in the manufacture of edible films that are used in various breath freshener or oral hygiene products. As a food additive, it is known by the E number E1204. Pullulan has good adhesive and foam retention properties when dissolved in water, but without high viscosity. These properties enable Pullulan to be used for creating luxuriant smoothness for skin, hair care and facial cleansing products. Furthermore, the excellent adhesive property of Pullulan also provides an opportunity to create new products such as facial masks that can be easily washed away. Pullulan produces easily dissolvable films, making it an effective and stable carrier for active ingredients, colors and fragrances.
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