Gellan gum,98%

Typical Properties
CAS	71010-52-1
Catalog	ACM71010521-5
Molecular Weight	~500 kDa
Purity	98 %
Appearance	Powder
Storage	Room Temp
EC Number	275-117-5
Grade	Reagent Grade
Impurities	Ash : 4.0 %-15.0 %
Loss	≤ 15.0 loss on drying
MDL Number	MFCD00131909
pH	7.0
Quality Level	200
Shipping	Ambient

Overview

Description

Gellan gum is an extracellular polysaccharide produced by Pseudomonas elegans, a Gram-negative bacteria isolated from water lily. The monosaccharide composition of gellan gum is glucose, rhamnose and glucuronic acid in a ratio of approximately 2:1:1. The backbone is a linear tetrasaccharide repeat unit consisting of 1,3- and 1,4-linked glucose units, 1,3-linked glucuronic acid units and 1,4-linked rhamnose units. Natural gellan gum has a glyceride group at the C3 position of the first glucose group and an acetyl group at the C6 position of the same glucose group in the other half. If it is treated with a base (at pH 10), a more versatile deacetylated gellan gum can be obtained. In general, natural gellan gum forms a soft, elastic gum, while deacetylated gellan gum forms a strong, brittle gum. In addition to being widely used in food, gellan gum can also be used in other fields. For example, it can be used as eye drops, soft and hard capsules, coating agents and new formulations in medicine; in chemical industry, it can be used as film coating, adhesive, toothpaste, etc.; in agriculture, it can be used as leaf fertilizer, slow-release fertilizer, etc. ; It can also be used as a substitute for agar to prepare biological medium, especially for medium requiring high clarity, such as the medium for mesophilic microorganisms, and it is also a good medium for plant tissue culture.

Features

·Excellent thermal stability and acid resistance
·Very high gel clarity
·Adjustability of elasticity and stiffness
·Thermally irreversible
·Good compatibility

Application

·Food functional additives
·Cosmetic additives
·Chemicals: Coatings, Adhesives, Toothpaste
·Agriculture: Slow Release Fertilizers
·Others: microorganisms, plant culture medium, etc.