Side-by-Side Comparison
Food Additives & E-Numbers
E500: Sodium Bicarbonate (Baking Soda / Ins 500ii) vs. E627: Disodium Guanylate (GMP Umami Synergist)
Comparing 2 standards across 9 specifications. 9 key differences identified.
Comparing:
E500: Sodium Bicarbonate (Baking Soda / Ins 500ii)
E627: Disodium Guanylate (GMP Umami Synergist)
E500 (Sodium Carbonates / Sodium Bicarbonate NaHCO3) is a mineral salt leavening agent and pH buffer. INS 500(ii), ADI is Not Limited (Quantum Satis), decomposing under heat and acid to produce carbon dioxide bubbles that expand cakes, cookies, and pretzel crusts.
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
|
E500 | E627 |
|
INS / Codex Number
|
INS 500(ii) (Bicarbonate) / 500(i) (Carbonate) | INS 627 |
|
Functional Class
|
Raising / Leavening Agent, Acidity Regulator, Anti-Caking | Flavor Enhancer (Purine Nucleotide Umami Synergist) |
|
Acceptable Daily Intake (ADI)
|
Not Limited (Quantum Satis) | Not Specified (Quantum Satis) |
|
Chemical Formula
|
NaHCO3 (Sodium Hydrogen Carbonate) | C10H12N5Na2O8P · xH2O |
|
Primary Mechanism
|
Thermal (>50°C) or acid neutralization releases CO2 gas: NaHCO3 + H+ -> Na+ + H2O + CO2 | Binds allosteric site on T1R1/T1R3 umami receptor, locking glutamate into the orthosteric binding pocket |
|
Common Target Foods
|
Baking powders, cookies, cakes, pretzel alkaline dips, effervescent drink tablets | Savory snack seasonings (Doritos, chips), instant ramen noodle seasoning packets, bouillon cubes |
|
Dietary Compliance
|
100% Vegan (Mineral Solvay process/Trona mining), Halal, Kosher | Vegan (Microbial fermentation of tapioca/sugar), Halal, Kosher |
|
Safety Approval
|
EFSA Authorized / FDA GRAS (21 CFR 184.1736) | EFSA Authorized / FDA GRAS (21 CFR 172.530) |
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