Side-by-Side Comparison
Food Additives & E-Numbers
E224: Potassium Metabisulfite (Campden Salt) vs. E440: Pectin (Citrus & Apple Jam Gelling Fiber)
Comparing 2 standards across 10 specifications. 10 key differences identified.
Comparing:
E224: Potassium Metabisulfite (Campden Salt)
E440: Pectin (Citrus & Apple Jam Gelling Fiber)
E224 (Potassium Metabisulfite / K2S2O5) is a white crystalline powder releasing 57.6% sulfur dioxide by weight when dissolved in acidic liquids. INS 224, ADI is 0.7 mg/kg bw/day, the premier sanitizing and stabilizing agent in commercial winemaking.
E440 (Pectin) is a complex heteropolysaccharide rich in alpha-(1->4)-linked D-galacturonic acid extracted from citrus peels and apple pomace. INS 440, ADI is Not Limited (Quantum Satis), the global gold standard gelling agent for jams, jellies, and fruit spreads.
Specification Comparison Table
10 Parameters| Parameter / Spec | ||
|---|---|---|
|
E-Number Code
|
E224 | E440 |
|
INS / Codex Number
|
INS 224 | INS 440(i) / 440(ii) |
|
Functional Class
|
Preservative, Antioxidant, Sanitizer | Gelling Agent, Thickener, Stabilizer, Soluble Fiber |
|
Acceptable Daily Intake (ADI)
|
0.7 mg / kg body weight per day (as SO2 equivalent) | Not Limited (Quantum Satis) |
|
Primary Mechanism
|
Releases free SO2 and potassium ions, neutralizing wild yeasts and preventing enzymatic must oxidation | HM forms junction zones with sugar (Brix > 55%) + acid (pH < 3.5); LM gels with calcium ions (Ca2+) |
|
Common Target Foods
|
Grape must, commercial wines, ciders, lemon juice concentrates, dried fruit processing | Fruit jams, marmalades, gummy confectionery, fruit preparations for yogurt, glazes |
|
Dietary Compliance
|
Vegan, Halal, Kosher (Allergen labeling required) | 100% Vegan (Citrus peel/apple extraction), Halal, Kosher |
|
Safety Approval
|
EFSA Authorized / FDA GRAS (21 CFR 182.3637) | EFSA Authorized / FDA GRAS (21 CFR 184.1588) |
|
Chemical Formula
|
K2S2O5 | — |
|
Primary Classes
|
— | High Methoxyl Pectin (HM, DE > 50%), Low Methoxyl Pectin (LM, DE < 50%) |
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