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  4. Xanthan gum

Xanthan gum is a microbial polysaccharide produced by Xanthomonas campestris. The structure of xanthan gum is based on a cellulose backbone of β-(1-4)-linked glucose units with a trisaccharide side of mannose-glucuronic acid-mannose attached to every other glucose unit in the backbone chain. Some terminal mannose units are pyruvated and some internal mannose units are acetylated. Due to its unique rheology and gelling properties, it is widely used as a food additive, thickener and stabilizer in the food and petroleum industries.

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Xanthan gum Chemical Structure

Xanthan gum Chemical Structure

CAS No. : 11138-66-2

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Description

Xanthan gum is a microbial polysaccharide produced by Xanthomonas campestris. The structure of xanthan gum is based on a cellulose backbone of β-(1-4)-linked glucose units with a trisaccharide side of mannose-glucuronic acid-mannose attached to every other glucose unit in the backbone chain. Some terminal mannose units are pyruvated and some internal mannose units are acetylated. Due to its unique rheology and gelling properties, it is widely used as a food additive, thickener and stabilizer in the food and petroleum industries.

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Appearance

Solid

Color

White to off-white

SMILES

CC([R4])(C(O)=O)[R6].OC[C@@H]1[C@@H](COC)[C@H](O)[C@@H](O)[C@H](OOC[C@@H]2[C@@H](CO)O[C@@H](CC)[C@H](O)[C@@H]2COC[C@H]3[C@H](COC[C@H]4[C@H](O)[C@@H](O)[C@H](COC[C@H]5[C@H](O)[C@@H](O)[C@H](O[R])[C@@H](CO[R])O5)[C@@H](C(O)=O)O4)[C@@H](O)[C@H](O)[C@@H](COC(C)=O)O3)C1.[n]
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Room temperature in continental US; may vary elsewhere.
Storage
Powder -20°C 3 years
4°C 2 years
In solvent -80°C 6 months
-20°C 1 month
Solvent & Solubility
In Vitro: 

H2O : 2.5 mg/mL (Need ultrasonic)

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Xanthan gum Related Classifications

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  • Do most proteins show cross-species activity?

    Species cross-reactivity must be investigated individually for each product. Many human cytokines will produce a nice response in mouse cell lines, and many mouse proteins will show activity on human cells. Other proteins may have a lower specific activity when used in the opposite species.

Keywords:

Xanthan gum11138-66-2Biochemical Assay Reagentsbiochemical assayreagentInhibitorinhibitorinhibit

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