Side-by-Side Comparison
Food Additives & E-Numbers
E251: Sodium Nitrate (Chile Saltpeter / Slow Curing) vs. E412: Guar Gum (Cold-Soluble Galactomannan)
Comparing 2 standards across 10 specifications. 10 key differences identified.
Comparing:
E251: Sodium Nitrate (Chile Saltpeter / Slow Curing)
E412: Guar Gum (Cold-Soluble Galactomannan)
E251 (Sodium Nitrate / NaNO3) is an inorganic salt serving as a slow-release chemical reservoir of nitrite in long-aged cured meats and hard cheeses. INS 251, ADI is 3.7 mg/kg bw/day, enzymatically reduced into nitrite over months of curing.
E412 (Guar Gum) is a natural galactomannan hydrocolloid extracted from guar beans (Cyamopsis tetragonoloba). INS 412, ADI is Not Limited (Quantum Satis), boasting 8x the thickening power of cornstarch and hydrating completely in cold water.
Specification Comparison Table
10 Parameters| Parameter / Spec | ||
|---|---|---|
|
E-Number Code
|
E251 | E412 |
|
INS / Codex Number
|
INS 251 | INS 412 |
|
Functional Class
|
Preservative, Curing Agent, Antimicrobial | Thickener, Emulsion Stabilizer, Dietary Fiber |
|
Acceptable Daily Intake (ADI)
|
3.7 mg / kg body weight per day (as nitrate ion) | Not Limited (Quantum Satis) |
|
Primary Mechanism
|
Micrococcus and Staphylococcus bacterial nitrate reductase slowly converts nitrate (NO3-) into bioactive nitrite (NO2-) | Entangles water molecules via extensive hydrogen bonding, producing high viscosity at low shear |
|
Common Target Foods
|
Prosciutto di Parma, dry-cured salamis, Gouda cheeses (prevents late blowing by Clostridium tyrobutyricum) | Gluten-free baked goods, salad dressings, ice creams, sauces, instant soup powders |
|
Dietary Compliance
|
Mineral synthesis, Halal, Kosher, Vegan compliance | 100% Vegan (Guar bean seed endosperm), Halal, Kosher, Non-GMO |
|
Safety Approval
|
EFSA Authorized / FDA 9 CFR 424.21 | EFSA Authorized / FDA GRAS (21 CFR 184.1339) |
|
Chemical Formula
|
NaNO3 | — |
|
Mannose to Galactose Ratio
|
— | 2 : 1 (High galactose substitution enables instant cold water solubility) |
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