Side-by-Side Comparison
Food Additives & E-Numbers
E250: Sodium Nitrite (Curing Salt / Anti-Botulism Preservative) vs. E471: Mono- & Diglycerides of Fatty Acids (Bread Softener)
Comparing 2 standards across 13 specifications. 13 key differences identified.
Comparing:
E250: Sodium Nitrite (Curing Salt / Anti-Botulism Preservative)
E471: Mono- & Diglycerides of Fatty Acids (Bread Softener)
Sodium nitrite (E250, NaNO2) is an inorganic salt used in cured charcuterie, bacon, and processed meats to inhibit Clostridium botulinum neurotoxin germination, fix cured pink nitrosyl-myoglobin color, and retard lipid autoxidation.
E471 is an authorized food emulsifier composed of glycerol esterified with one or two fatty acid chains (glycerol monostearate / monooleate). INS 471, ADI is Not Limited (Quantum Satis), globally recognized as the ultimate crumb softener and amylose complexing agent in bakery.
Specification Comparison Table
13 Parameters| Parameter / Spec | ||
|---|---|---|
|
Functional Class
|
Preservative / Color Retention Agent (Curing Salt) | Emulsifier, Anti-Staling Agent, Crumb Softener, Defoamer |
|
Acceptable Daily Intake (ADI)
|
0–0.07 mg/kg body weight per day (EFSA / JECFA) | Not Limited (Quantum Satis) |
|
INS / E-Number
|
INS 250 / E250 | — |
|
Chemical Formula
|
NaNO₂ (Molecular Weight: 68.995 g/mol) | — |
|
USDA Maximum Residual Level
|
156 ppm in cured meat / 200 ppm in dry cured ham / 120 ppm in bacon with ascorbate | — |
|
Botulism Inhibition Threshold
|
Inhibits Clostridium botulinum spore outgrowth at ≥50–100 mg/kg in presence of NaCl | — |
|
E-Number Code
|
— | E471 |
|
INS / Codex Number
|
— | INS 471 |
|
Hydrophilic-Lipophilic Balance (HLB)
|
— | 3.5 – 4.5 (Lipophilic water-in-oil emulsifier) |
|
Primary Mechanism
|
— | Fatty acid chain complexes into helical starch amylose cavity, preventing retrogradation staling |
|
Common Target Foods
|
— | Sliced sandwich bread, margarines, ice creams, peanut butter (Prevents oil separation), cake mixes |
|
Dietary Compliance
|
— | Vegan (When derived from palm/sunflower oil; animal fat variants must be labeled) |
|
Safety Approval
|
— | EFSA Authorized / FDA GRAS (21 CFR 184.1505) |
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