Side-by-Side Comparison
Food Additives & E-Numbers
E260: Acetic Acid (Vinegar Acidulant / Preservative) vs. E627: Disodium Guanylate (GMP Umami Synergist)
Comparing 2 standards across 9 specifications. 9 key differences identified.
Comparing:
E260: Acetic Acid (Vinegar Acidulant / Preservative)
E627: Disodium Guanylate (GMP Umami Synergist)
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.
E627 (Disodium 5'-Guanylate / GMP) is the sodium salt of guanylic acid, a purine nucleotide naturally concentrated in dried shiitake mushrooms. INS 627, ADI is Not Specified, exhibiting massive 8x–30x synergistic umami amplification when paired with MSG.
Specification Comparison Table
9 Parameters| Parameter / Spec | ||
|---|---|---|
|
E-Number Code
|
E260 | E627 |
|
INS / Codex Number
|
INS 260 | INS 627 |
|
Functional Class
|
Acidity Regulator, Preservative, Flavoring Tastant | Flavor Enhancer (Purine Nucleotide Umami Synergist) |
|
Acceptable Daily Intake (ADI)
|
Not Limited (Quantum Satis) | Not Specified (Quantum Satis) |
|
Chemical Formula
|
CH3COOH (pKa 4.76) | C10H12N5Na2O8P · xH2O |
|
Primary Mechanism
|
Lowers pH below 4.2, destroying bacterial cell membrane proton motive force | Binds allosteric site on T1R1/T1R3 umami receptor, locking glutamate into the orthosteric binding pocket |
|
Common Target Foods
|
Table vinegars (4–8%), pickled cucumbers, mustard, mayonnaise, tomato ketchup | Savory snack seasonings (Doritos, chips), instant ramen noodle seasoning packets, bouillon cubes |
|
Dietary Compliance
|
100% Vegan (Biological vinegar fermentation), Halal, Kosher | Vegan (Microbial fermentation of tapioca/sugar), Halal, Kosher |
|
Safety Approval
|
EFSA Authorized / FDA GRAS (21 CFR 184.1005) | EFSA Authorized / FDA GRAS (21 CFR 172.530) |
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