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Side-by-Side Comparison Food Additives & E-Numbers

E150a: Plain Caramel (Class I Caramel Color) vs. E631: Disodium Inosinate (IMP Meat Umami Synergist)

Comparing 2 standards across 10 specifications. 10 key differences identified.

Comparing:

E150a: Plain Caramel (Class I Caramel Color)

E631: Disodium Inosinate (IMP Meat Umami Synergist)

Highlight Diffs (10)

E150a: Plain Caramel (Class I Caramel Color) →

E150a (Class I / Plain Caramel) is produced by controlled thermal heating of food carbohydrates without ammonium or sulfite compounds. INS 150a, ADI is Not Specified, yielding a warm brown-amber color in spirits, whiskey, and vinegars.

View full E150a: Plain Caramel (Class I Caramel Color) spec sheet →

E631: Disodium Inosinate (IMP Meat Umami Synergist) →

E631 (Disodium 5'-Inosinate / IMP) is the sodium salt of inosinic acid, a purine nucleotide naturally found in aged beef, katsuobushi bonito flakes, and cured meats. INS 631, ADI is Not Specified, multiplying glutamate umami flavor.

View full E631: Disodium Inosinate (IMP Meat Umami Synergist) spec sheet →

Specification Comparison Table

10 Parameters

Parameter / Spec	E150a: Plain Caramel (Class I Caramel Color)	E631: Disodium Inosinate (IMP Meat Umami Synergist)
E-Number Code	E150a	E631
INS / Codex Number	INS 150a	INS 631
Functional Class	Food Color (Brown), Aromatic Flavoring	Flavor Enhancer (Meat Purine Umami Synergist)
Acceptable Daily Intake (ADI)	Not Specified (Quantum Satis / Highest purity class)	Not Specified (Quantum Satis)
Primary Mechanism	Pyrolysis and non-enzymatic caramelization forming high-molecular-weight chromophores	Allosteric conformational stabilizer of human T1R1/T1R3 G-protein umami receptor heterodimer
Common Target Foods	Scotch whisky, bourbon, brandy, rum, balsamic vinegar, craft ales	Instant soups, meat seasonings, potato chips, canned meat gravies, cured snacks
Dietary Compliance	100% Vegan (Sugar derived), Halal, Kosher, 4-MEI Free	Vegan (Bacterial Corynebacterium fermentation standard), Halal, Kosher
Safety Approval	EFSA Authorized / FDA GRAS (21 CFR 73.85)	EFSA Authorized / FDA GRAS (21 CFR 172.535)
Chemical Class	Complex polymeric carbohydrate breakdown caramelans, caramelens, caramelins	—
Chemical Formula	—	C10H11N4Na2O8P · xH2O

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