Xanthan Gum is a polysaccharide derived from the fermentation of carbohydrates. A natural ingredient used as a thickening agent, texture enhancer, and to stabilize emulsions, which is a general term for mixtures of unlike substances such as oil and water.

Xanthan Gum (Wikipedia)

Xanthan gum (/ˈzænθən/) is a polysaccharide with many industrial uses, including as a common food additive. It is an effective thickening agent, emulsifier, and stabilizer that prevents ingredients from separating. It can be produced from simple sugars using a fermentation process and derives its name from the species of bacteria used, Xanthomonas campestris.

Xanthan gum

Names
Other names E 415
Identifiers
CAS Number	11138-66-2 Y
ChemSpider	None
ECHA InfoCard	100.031.255
EC Number	234-394-2
E number	E415 (thickeners, ...)
UNII	TTV12P4NEE Y
CompTox Dashboard (EPA)	DTXSID4044169
Properties
Chemical formula	C35H49O29 (monomer)
Molar mass	933.748 g·mol−1
Hazards
Safety data sheet (SDS)	MSDS
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). N verify (what is YN ?) Infobox references