Is Xanthan Gum (E415) Vegan?

Also known as: Xanthomonas campestris polysaccharide

Vegan

Produced by bacterial fermentation — specifically, the bacterium Xanthomonas campestris fermenting a carbohydrate substrate (typically corn sugar or glucose). Entirely microbial in origin.

Ingredient Data

Vegan Status

Vegan

E-Number

E415

Also Known As

Xanthomonas campestris polysaccharide

Source

Produced by bacterial fermentation — specifically, the bacterium Xanthomonas campestris fermenting a carbohydrate substrate (typically corn sugar or glucose). Entirely microbial in origin.

Commonly Found In

Gluten-free bread and baked goods, salad dressings, sauces, ice cream, plant-based products. The primary gluten substitute in gluten-free baking.

Vegan Alternative

No substitute needed — E415 is vegan.

Additional Notes

The bacteria Xanthomonas campestris is the same organism responsible for 'black rot' disease in brassicas. The fermentation product is completely safe — the bacteria are removed after fermentation. Xanthan gum is the gold standard for gluten-free baking because it replicates gluten's viscoelastic properties. Some rare individuals experience digestive sensitivity.

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