E418 is a type of high-molecular-weight polysaccharide that is produced by the bacterium Sphingomonas elodea through fermentation. It is composed of repeating units of glucose, rhamnose, and glucuronic acid, which are linked together in a complex arrangement to form a long-chain molecule. The resulting polymer is then purified and dried to create a powder that is used as a food additive.

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Overview of E418 Gellan Gum

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