Comparing E330 - Citric acid vs E297 - Fumaric acid
Overview
Synonyms
Products
Found in 95,503 products
Found in 3,925 products
Search rank & volume
Awareness score
Search volume over time
Interest over time for 2 keywords in U.S. during the last 10 years.
Interest over time for 3 keywords in U.S. during the last 10 years.
Popular questions
Is citric acid bad for you?
At typical food levels, citric acid (E330) is considered safe by major regulators (GRAS; EFSA/JECFA). Concentrated or frequent acidic exposure can irritate the mouth/stomach or contribute to tooth enamel erosion.
Where does the citric acid cycle occur?
In eukaryotic cells it occurs in the mitochondrial matrix; in bacteria it occurs in the cytosol.
What does citric acid do to your body?
It is a normal intermediate in energy metabolism and is readily metabolized to carbon dioxide and water. Citrate can bind minerals, which may enhance absorption of some and help prevent certain kidney stones by increasing urinary citrate.
Where does citric acid come from?
It occurs naturally in citrus fruits, but most food-grade citric acid is produced by fermenting sugars (e.g., from corn, beet, or cane) with Aspergillus niger.
How is citric acid made?
Industrially, sugars are fermented with Aspergillus niger to produce citric acid, then it is recovered and purified—often by precipitating calcium citrate and converting it back with sulfuric acid or via ion-exchange/crystallization.
Is fumaric acid bad for you?
No—at the small amounts used in foods it’s not considered harmful; very high intakes may irritate the stomach or teeth due to its acidity.
Is fumaric acid safe in food?
Yes; it’s an approved food acidulant (e.g., GRAS in the U.S.) and EFSA has found no safety concern at authorized uses and levels.
Is fumaric acid vegan?
Yes; it’s typically made synthetically or by microbial fermentation and does not require animal-derived ingredients.
What is fumaric acid in food?
An acidulant that adds tartness, controls pH, and functions as a slow-dissolving leavening acid—commonly used in beverages, confections, and tortillas to improve flavor and shelf life.
What is fumaric acid made from?
Commercially it’s produced by isomerizing maleic anhydride/maleic acid (petrochemical route) or by fermenting sugars with fungi such as Rhizopus; it also occurs naturally in small amounts in some plants and fungi.