E260: Acetic Acid (Vinegar Acidulant / Preservative) vs. E282: Calcium Propionate (Bread Anti-Mold)
Comparing 2 standards across 9 specifications. 8 key differences identified.
E260 (Acetic Acid / Ethanoic acid) is a natural carboxylic acid produced via aerobic Acetobacter fermentation of ethanol. INS 260, ADI is Not Limited (Quantum Satis), giving vinegar its characteristic pungent sour flavor and pickling preservative action.
E282 (Calcium Propionate) is the calcium salt of propionic acid, the premier mold and 'rope' bacteria inhibitor in industrial yeast-leavened bakery goods. INS 282, ADI is Not Limited (Quantum Satis), preserving sliced bread for weeks without retarding yeast activity.
Specification Comparison Table
9 Parameters| Parameter / Spec | ||
|---|---|---|
|
E-Number Code
|
E260 | E282 |
|
INS / Codex Number
|
INS 260 | INS 282 |
|
Functional Class
|
Acidity Regulator, Preservative, Flavoring Tastant | Preservative (Bakery Anti-Mold & Anti-Rope) |
|
Acceptable Daily Intake (ADI)
|
Not Limited (Quantum Satis) | Not Limited (Quantum Satis) |
|
Chemical Formula
|
CH3COOH (pKa 4.76) | Ca(C3H5O2)2 |
|
Primary Mechanism
|
Lowers pH below 4.2, destroying bacterial cell membrane proton motive force | Propionate ion disrupts membrane transport in Penicillium molds and Bacillus mesentericus (rope bacteria) |
|
Common Target Foods
|
Table vinegars (4–8%), pickled cucumbers, mustard, mayonnaise, tomato ketchup | Commercial sliced white/wheat bread, hamburger buns, tortillas, pita bread |
|
Dietary Compliance
|
100% Vegan (Biological vinegar fermentation), Halal, Kosher | Vegan, Halal, Kosher |
|
Safety Approval
|
EFSA Authorized / FDA GRAS (21 CFR 184.1005) | EFSA Authorized / FDA GRAS (21 CFR 184.1221) |