E282: Calcium Propionate (Bread Anti-Mold) vs. E627: Disodium Guanylate (GMP Umami Synergist)
Comparing 2 standards across 9 specifications. 9 key differences identified.
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.
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
|
E282 | E627 |
|
INS / Codex Number
|
INS 282 | INS 627 |
|
Functional Class
|
Preservative (Bakery Anti-Mold & Anti-Rope) | Flavor Enhancer (Purine Nucleotide Umami Synergist) |
|
Acceptable Daily Intake (ADI)
|
Not Limited (Quantum Satis) | Not Specified (Quantum Satis) |
|
Chemical Formula
|
Ca(C3H5O2)2 | C10H12N5Na2O8P · xH2O |
|
Primary Mechanism
|
Propionate ion disrupts membrane transport in Penicillium molds and Bacillus mesentericus (rope bacteria) | Binds allosteric site on T1R1/T1R3 umami receptor, locking glutamate into the orthosteric binding pocket |
|
Common Target Foods
|
Commercial sliced white/wheat bread, hamburger buns, tortillas, pita bread | Savory snack seasonings (Doritos, chips), instant ramen noodle seasoning packets, bouillon cubes |
|
Dietary Compliance
|
Vegan, Halal, Kosher | Vegan (Microbial fermentation of tapioca/sugar), Halal, Kosher |
|
Safety Approval
|
EFSA Authorized / FDA GRAS (21 CFR 184.1221) | EFSA Authorized / FDA GRAS (21 CFR 172.530) |