E170: Calcium Carbonate (Mineral White Color / Anti-Caking) vs. E415: Xanthan Gum (Pseudoplastic Hydrocolloid Thickener)
Comparing 2 standards across 16 specifications. 16 key differences identified.
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.
Xanthan gum (E415) is a high-molecular-weight microbial exopolysaccharide produced by Xanthomonas campestris fermentation, renowned for extreme pseudoplastic shear-thinning rheology, freeze-thaw stability, and gluten-free dough structural binding.
Specification Comparison Table
16 Parameters| Parameter / Spec | ||
|---|---|---|
|
E-Number Code
|
E170 | — |
|
INS / Codex Number
|
INS 170(i) | — |
|
Functional Class
|
Food Color (White / Opacifier), Anti-Caking, Acidity Regulator, Nutrient | — |
|
Acceptable Daily Intake (ADI)
|
Not Limited (Quantum Satis) | — |
|
Chemical Formula
|
CaCO3 | — |
|
Primary Mechanism
|
High refractive index light scattering creating white opacity; neutralizes acids to calcium salts and CO2 | — |
|
Common Target Foods
|
Chewing gum coatings, plant milks (Soy/Almond calcium fortification), baking powders, tablets | — |
|
Dietary Compliance
|
Vegan (Mineral limestone), Halal, Kosher | — |
|
Safety Approval
|
EFSA Authorized / FDA GRAS (21 CFR 184.1191) | — |
|
INS / E-Number
|
— | INS 415 / E415 |
|
Polymer Structure
|
— | Cellulose β-(1,4)-D-glucan backbone with trisaccharide side chains (mannose-glucuronic acid-mannose) |
|
Molecular Weight
|
— | 2.0 × 10⁶ to 5.0 × 10⁶ Da (2–5 MDa) |
|
Rheological Behavior
|
— | Extreme Pseudoplasticity (Shear-thinning index n ≈ 0.15–0.25) |
|
Yield Stress
|
— | High at rest (suspends dense particulates like herbs in salad dressing permanently) |
|
Thermal Stability
|
— | Maintains constant viscosity from 0°C to 100°C across pH 2.0 to 12.0 |
|
Synergistic Gelation
|
— | Forms thermo-reversible firm gels when blended with Locust Bean Gum (E410) or Guar Gum (E412) |