# item.guide
Side-by-Side Comparison Food Additives & E-Numbers

E100: Curcumin (Turmeric Yellow Color) vs. E631: Disodium Inosinate (IMP Meat Umami Synergist)

Comparing 2 standards across 9 specifications. 9 key differences identified.

Comparing:
E100: Curcumin (Turmeric Yellow Color)
E631: Disodium Inosinate (IMP Meat Umami Synergist)
E100: Curcumin (Turmeric Yellow Color) →

E100 (Curcumin) is a natural diarylheptanoid yellow pigment extracted from the rhizomes of turmeric (Curcuma longa). INS 100(i), ADI is 3 mg/kg bw/day, providing bright yellow-orange coloration in mustard, cheese, and curry powders.

View full E100: Curcumin (Turmeric Yellow 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

9 Parameters
Parameter / Spec
E100: Curcumin (Turmeric Yellow Color)
E631: Disodium Inosinate (IMP Meat Umami Synergist)
E-Number Code
E100 E631
INS / Codex Number
INS 100(i) INS 631
Functional Class
Food Color (Yellow-Orange) Flavor Enhancer (Meat Purine Umami Synergist)
Acceptable Daily Intake (ADI)
3 mg / kg body weight per day Not Specified (Quantum Satis)
Chemical Formula
C21H20O6 C10H11N4Na2O8P · xH2O
Primary Mechanism
Light absorption at 420–430nm producing vibrant golden-yellow hue; polyphenol antioxidant activity Allosteric conformational stabilizer of human T1R1/T1R3 G-protein umami receptor heterodimer
Common Target Foods
Prepared mustard, curry seasonings, margarine, cheese rinds, confectionery Instant soups, meat seasonings, potato chips, canned meat gravies, cured snacks
Dietary Compliance
100% Vegan (Turmeric root extraction), Halal, Kosher Certified Vegan (Bacterial Corynebacterium fermentation standard), Halal, Kosher
Safety Approval
EFSA Authorized / FDA GRAS (21 CFR 73.600) EFSA Authorized / FDA GRAS (21 CFR 172.535)

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