# item.guide
Side-by-Side Comparison Food Additives & E-Numbers

E100: Curcumin (Turmeric Yellow Color) vs. E220: Sulfur Dioxide (Antioxidant & Wine Preservative)

Comparing 2 standards across 9 specifications. 9 key differences identified.

Comparing:
E100: Curcumin (Turmeric Yellow Color)
E220: Sulfur Dioxide (Antioxidant & Wine Preservative)
E100: Curcumin (Turmeric Yellow Color) →

E100 (Curcumin) is a natural diarylheptanoid yellow pigment extracted from the rhizomes of turmeric (Curcuma longa). INS 100(i), ADI is 3 mg/kg bw/day, providing bright yellow-orange coloration in mustard, cheese, and curry powders.

View full E100: Curcumin (Turmeric Yellow Color) spec sheet →
E220: Sulfur Dioxide (Antioxidant & Wine Preservative) →

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.

View full E220: Sulfur Dioxide (Antioxidant & Wine Preservative) spec sheet →

Specification Comparison Table

9 Parameters
Parameter / Spec
E100: Curcumin (Turmeric Yellow Color)
E220: Sulfur Dioxide (Antioxidant & Wine Preservative)
E-Number Code
E100 E220
INS / Codex Number
INS 100(i) INS 220
Functional Class
Food Color (Yellow-Orange) Preservative, Antioxidant, Enzymatic Browning Inhibitor
Acceptable Daily Intake (ADI)
3 mg / kg body weight per day 0.7 mg / kg body weight per day (as SO2 equivalent)
Chemical Formula
C21H20O6 SO2
Primary Mechanism
Light absorption at 420–430nm producing vibrant golden-yellow hue; polyphenol antioxidant activity Molecular SO2 penetrates microbial membranes; bisulfite (HSO3-) cleaves disulfide bonds in enzymes and binds acetaldehyde
Common Target Foods
Prepared mustard, curry seasonings, margarine, cheese rinds, confectionery Wines (Contains sulfites declaration >10mg/L), dried apricots, ciders, potato starch
Dietary Compliance
100% Vegan (Turmeric root extraction), Halal, Kosher Certified Vegan, Halal, Kosher, Major Allergen Declaration Mandatory
Safety Approval
EFSA Authorized / FDA GRAS (21 CFR 73.600) EFSA Authorized / FDA GRAS (21 CFR 182.3862 - Banned on raw produce)

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