Side-by-Side Comparison
Food Additives & E-Numbers
E170: Calcium Carbonate (Mineral White Color / Anti-Caking) vs. E306: Tocopherol-Rich Extract (Natural Vitamin E Antioxidant)
Comparing 2 standards across 10 specifications. 9 key differences identified.
Comparing:
E170: Calcium Carbonate (Mineral White Color / Anti-Caking)
E306: Tocopherol-Rich Extract (Natural Vitamin E Antioxidant)
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.
E306 is a natural mixture of alpha-, beta-, gamma-, and delta-tocopherols steam-distilled from vegetable oils (soybean, sunflower). INS 306, ADI is Not Limited, serving as the gold standard lipid-soluble antioxidant in fats and oils.
Specification Comparison Table
10 Parameters| Parameter / Spec | ||
|---|---|---|
|
E-Number Code
|
E170 | E306 |
|
INS / Codex Number
|
INS 170(i) | INS 306 |
|
Functional Class
|
Food Color (White / Opacifier), Anti-Caking, Acidity Regulator, Nutrient | Antioxidant (Lipid Peroxidation Inhibitor) |
|
Acceptable Daily Intake (ADI)
|
Not Limited (Quantum Satis) | Not Limited (Quantum Satis) |
|
Primary Mechanism
|
High refractive index light scattering creating white opacity; neutralizes acids to calcium salts and CO2 | Free-radical scavenger donating phenolic hydrogen atoms to peroxyl radicals (ROO•), breaking lipid auto-oxidation chain |
|
Common Target Foods
|
Chewing gum coatings, plant milks (Soy/Almond calcium fortification), baking powders, tablets | Vegetable cooking oils, margarines, infant formula, fish oil capsules, potato crisps |
|
Dietary Compliance
|
Vegan (Mineral limestone), Halal, Kosher | 100% Vegan (Plant oil distillate), Halal, Kosher Certified |
|
Safety Approval
|
EFSA Authorized / FDA GRAS (21 CFR 184.1191) | EFSA Authorized / FDA GRAS (21 CFR 184.1890) |
|
Chemical Formula
|
CaCO3 | — |
|
Active Isomers
|
— | d-Gamma-Tocopherol, d-Delta-Tocopherol, d-Alpha-Tocopherol |
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