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

E100: Curcumin (Turmeric Yellow Color) vs. E170: Calcium Carbonate (Mineral White Color / Anti-Caking)

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

Comparing:
E100: Curcumin (Turmeric Yellow Color)
E170: Calcium Carbonate (Mineral White Color / Anti-Caking)
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 →
E170: Calcium Carbonate (Mineral White Color / Anti-Caking) →

E170 (Calcium Carbonate / CaCO3) is a fine mineral salt mined from limestone or precipitated synthetically. INS 170(i), ADI is Not Limited (Quantum Satis), serving as a white surface colorant, acidity buffer, anti-caking agent, and calcium nutrient fortificant.

View full E170: Calcium Carbonate (Mineral White Color / Anti-Caking) spec sheet →

Specification Comparison Table

9 Parameters
Parameter / Spec
E100: Curcumin (Turmeric Yellow Color)
E170: Calcium Carbonate (Mineral White Color / Anti-Caking)
E-Number Code
E100 E170
INS / Codex Number
INS 100(i) INS 170(i)
Functional Class
Food Color (Yellow-Orange) Food Color (White / Opacifier), Anti-Caking, Acidity Regulator, Nutrient
Acceptable Daily Intake (ADI)
3 mg / kg body weight per day Not Limited (Quantum Satis)
Chemical Formula
C21H20O6 CaCO3
Primary Mechanism
Light absorption at 420–430nm producing vibrant golden-yellow hue; polyphenol antioxidant activity High refractive index light scattering creating white opacity; neutralizes acids to calcium salts and CO2
Common Target Foods
Prepared mustard, curry seasonings, margarine, cheese rinds, confectionery Chewing gum coatings, plant milks (Soy/Almond calcium fortification), baking powders, tablets
Dietary Compliance
100% Vegan (Turmeric root extraction), Halal, Kosher Certified Vegan (Mineral limestone), Halal, Kosher
Safety Approval
EFSA Authorized / FDA GRAS (21 CFR 73.600) EFSA Authorized / FDA GRAS (21 CFR 184.1191)

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