Side-by-Side Comparison
Food Additives & E-Numbers
E220: Sulfur Dioxide (Antioxidant & Wine Preservative) vs. E322: Lecithin (Phospholipid Emulsifier & Viscosity Reducer)
Comparing 2 standards across 14 specifications. 14 key differences identified.
Comparing:
E220: Sulfur Dioxide (Antioxidant & Wine Preservative)
E322: Lecithin (Phospholipid Emulsifier & Viscosity Reducer)
E220 (Sulfur Dioxide / SO2) is an inorganic gas dissolved in water to generate bisulfite and sulfite ions, providing potent antimicrobial and polyphenol oxidase enzyme-inhibiting properties. INS 220, group ADI is 0.7 mg/kg bw/day.
Lecithin (E322) is a complex mixture of zwitterionic polar phospholipids (phosphatidylcholine, phosphatidylethanolamine, phosphatidylinositol) derived from soybeans, sunflower seeds, or egg yolks, functioning as an amphiphilic oil-in-water surfactant and chocolate viscosity reducer.
Specification Comparison Table
14 Parameters| Parameter / Spec | ||
|---|---|---|
|
Acceptable Daily Intake (ADI)
|
0.7 mg / kg body weight per day (as SO2 equivalent) | Not Specified (Quantum Satis / GRAS under FDA 21 CFR 184.1400) |
|
E-Number Code
|
E220 | — |
|
INS / Codex Number
|
INS 220 | — |
|
Functional Class
|
Preservative, Antioxidant, Enzymatic Browning Inhibitor | — |
|
Chemical Formula
|
SO2 | — |
|
Primary Mechanism
|
Molecular SO2 penetrates microbial membranes; bisulfite (HSO3-) cleaves disulfide bonds in enzymes and binds acetaldehyde | — |
|
Common Target Foods
|
Wines (Contains sulfites declaration >10mg/L), dried apricots, ciders, potato starch | — |
|
Dietary Compliance
|
Vegan, Halal, Kosher, Major Allergen Declaration Mandatory | — |
|
Safety Approval
|
EFSA Authorized / FDA GRAS (21 CFR 182.3862 - Banned on raw produce) | — |
|
INS / E-Number
|
— | INS 322i (Lecithin) / INS 322ii (Partially Hydrolyzed) |
|
Primary Phospholipid Composition
|
— | 19–21% Phosphatidylcholine (PC), 8–20% PE, 10–15% PI |
|
Hydrophilic-Lipophilic Balance (HLB)
|
— | HLB 4.0–6.0 (Standard unbleached) / HLB 8.0–10.0 (Enzymatically modified lyso-lecithin) |
|
Acetone-Insoluble Matter
|
— | ≥ 60.0% (standard benchmark of active phospholipid content) |
|
Major Sources
|
— | Soybean (Glycine max), Sunflower (Helianthus annuus - non-GMO / allergen-free), Rapeseed, Egg yolk |
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