Cultured dextrose
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The cultures ferment a plant sugar. They are not an animal ingredient.
Dextrose in this fermentate is the corn sugar. A wheat sugar would be named.
Corn dextrose is kitniyot for Passover.
Fermentation uses up some of the dextrose and not all of it. A slice of bread is a small dose. The powder itself is not carb-free.
Safe in small amounts; may bother some people or raise blood sugar.
Rules by country
Cultured dextrose is sold as a fermented clean-label preservative, not as an E-number. The US allows the fermentate in baked goods. Europe and Canada do not list it as a numbered additive, and propionic acid itself, which the culture produces, is an allowed preservative. The carrier is still dextrose, a sugar, even after the fermentation.
What is it?
The powder tastes mildly tangy and sweet. Bakeries add it to tortillas and English muffins so the package can list a culture instead of a numbered preservative.
Where it comes from: Cultured dextrose is dextrose that has been fermented with food cultures. The bacteria make organic acids, including propionic acid and sometimes bacteriocins, and those acids are what slow mold. The ingredient is the whole fermentate, not a purified chemical like calcium propionate.
Why it’s in food
- Slows mold on bread and tortillas
- Lets a label say cultured instead of propionate
- Adds a slight tang
- Pairs with vinegar in a bakery formula
Often found in
Also listed as: Cultured dextrose, Cultured corn sugar, Fermented dextrose
Health & gut impact
The cultures produce organic acids, including propionic acid, and those acids are what inhibit mold. Calcium propionate is the purified version of that same acid.
Function of cultured dextrose in bakery products
The substrate is dextrose. Fermentation does not convert every gram of it. People counting carbohydrate should read the amount used, not the word cultured.
Composition of cultured dextrose fermentate
What can I use instead?
Ratio: It is the purified acid this culture makes
Best for: A numbered preservative
Related
More preservatives:
Common questions
Is cultured dextrose just sugar?
It starts as dextrose. After fermentation it also contains the acids that slow mold. Both are in the powder.
Is it the same as calcium propionate?
They fight mold the same way. Calcium propionate is the purified salt. Cultured dextrose is the whole fermentate.
Is Cultured dextrose safe?
Use in moderation (74/100). Cultured dextrose is sold as a fermented clean-label preservative, not as an E-number. The US allows the fermentate in baked goods. Europe and Canada do not list it as a numbered additive, and propionic acid itself, which the culture produces, is an allowed preservative. The carrier is still dextrose, a sugar, even after the fermentation.
Is Cultured dextrose vegan?
Yes. The cultures ferment a plant sugar. They are not an animal ingredient.
Is Cultured dextrose gluten-free?
Yes. Dextrose in this fermentate is the corn sugar. A wheat sugar would be named.
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Scientific sources & regulatory citations
- Function of cultured dextrose in bakery products
- Composition of cultured dextrose fermentate