E163: Anthocyanins (Grape Skin & Berry Red/Purple) vs. E220: Sulfur Dioxide (Antioxidant & Wine Preservative)
Comparing 2 standards across 10 specifications. 10 key differences identified.
E163 (Anthocyanins) are natural water-soluble flavonoid polyphenol pigments extracted from grape skins, elderberries, and black carrots. INS 163, ADI is 2.5 mg/kg bw/day (grape skin extract), exhibiting pH-dependent colors from red to blue.
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.
Specification Comparison Table
10 Parameters| Parameter / Spec | ||
|---|---|---|
|
E-Number Code
|
E163 | E220 |
|
INS / Codex Number
|
INS 163(i)–(v) | INS 220 |
|
Functional Class
|
Food Color (Red, Purple, Blue) | Preservative, Antioxidant, Enzymatic Browning Inhibitor |
|
Acceptable Daily Intake (ADI)
|
2.5 mg / kg body weight per day (as anthocyanins) | 0.7 mg / kg body weight per day (as SO2 equivalent) |
|
Primary Mechanism
|
Flavylium cation red at pH 1–3, converting to blue quinoidal base at neutral/alkaline pH | Molecular SO2 penetrates microbial membranes; bisulfite (HSO3-) cleaves disulfide bonds in enzymes and binds acetaldehyde |
|
Common Target Foods
|
Red fruit beverages, sports drinks, jams, jellies, wine gums | Wines (Contains sulfites declaration >10mg/L), dried apricots, ciders, potato starch |
|
Dietary Compliance
|
100% Vegan (Fruit/Vegetable extraction), Halal, Kosher | Vegan, Halal, Kosher, Major Allergen Declaration Mandatory |
|
Safety Approval
|
EFSA Authorized / FDA 21 CFR 73.170 | EFSA Authorized / FDA GRAS (21 CFR 182.3862 - Banned on raw produce) |
|
Key Flavylium Cations
|
Cyanidin, Delphinidin, Malvidin, Peonidin, Petunidin | — |
|
Chemical Formula
|
— | SO2 |