Side-by-Side Comparison
Food Additives & E-Numbers
E440: Pectin (Citrus & Apple Jam Gelling Fiber) vs. E627: Disodium Guanylate (GMP Umami Synergist)
Comparing 2 standards across 10 specifications. 10 key differences identified.
Comparing:
E440: Pectin (Citrus & Apple Jam Gelling Fiber)
E627: Disodium Guanylate (GMP Umami Synergist)
E440 (Pectin) is a complex heteropolysaccharide rich in alpha-(1->4)-linked D-galacturonic acid extracted from citrus peels and apple pomace. INS 440, ADI is Not Limited (Quantum Satis), the global gold standard gelling agent for jams, jellies, and fruit spreads.
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
10 Parameters| Parameter / Spec | ||
|---|---|---|
|
E-Number Code
|
E440 | E627 |
|
INS / Codex Number
|
INS 440(i) / 440(ii) | INS 627 |
|
Functional Class
|
Gelling Agent, Thickener, Stabilizer, Soluble Fiber | Flavor Enhancer (Purine Nucleotide Umami Synergist) |
|
Acceptable Daily Intake (ADI)
|
Not Limited (Quantum Satis) | Not Specified (Quantum Satis) |
|
Primary Mechanism
|
HM forms junction zones with sugar (Brix > 55%) + acid (pH < 3.5); LM gels with calcium ions (Ca2+) | Binds allosteric site on T1R1/T1R3 umami receptor, locking glutamate into the orthosteric binding pocket |
|
Common Target Foods
|
Fruit jams, marmalades, gummy confectionery, fruit preparations for yogurt, glazes | Savory snack seasonings (Doritos, chips), instant ramen noodle seasoning packets, bouillon cubes |
|
Dietary Compliance
|
100% Vegan (Citrus peel/apple extraction), Halal, Kosher | Vegan (Microbial fermentation of tapioca/sugar), Halal, Kosher |
|
Safety Approval
|
EFSA Authorized / FDA GRAS (21 CFR 184.1588) | EFSA Authorized / FDA GRAS (21 CFR 172.530) |
|
Primary Classes
|
High Methoxyl Pectin (HM, DE > 50%), Low Methoxyl Pectin (LM, DE < 50%) | — |
|
Chemical Formula
|
— | C10H12N5Na2O8P · xH2O |
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