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

E100: Curcumin (Turmeric Yellow Color) vs. E306: Tocopherol-Rich Extract (Natural Vitamin E Antioxidant)

Comparing 2 standards across 10 specifications. 10 key differences identified.

Comparing:
E100: Curcumin (Turmeric Yellow Color)
E306: Tocopherol-Rich Extract (Natural Vitamin E Antioxidant)
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 →
E306: Tocopherol-Rich Extract (Natural Vitamin E Antioxidant) →

E306 is a natural mixture of alpha-, beta-, gamma-, and delta-tocopherols steam-distilled from vegetable oils (soybean, sunflower). INS 306, ADI is Not Limited, serving as the gold standard lipid-soluble antioxidant in fats and oils.

View full E306: Tocopherol-Rich Extract (Natural Vitamin E Antioxidant) spec sheet →

Specification Comparison Table

10 Parameters
Parameter / Spec
E100: Curcumin (Turmeric Yellow Color)
E306: Tocopherol-Rich Extract (Natural Vitamin E Antioxidant)
E-Number Code
E100 E306
INS / Codex Number
INS 100(i) INS 306
Functional Class
Food Color (Yellow-Orange) Antioxidant (Lipid Peroxidation Inhibitor)
Acceptable Daily Intake (ADI)
3 mg / kg body weight per day Not Limited (Quantum Satis)
Primary Mechanism
Light absorption at 420–430nm producing vibrant golden-yellow hue; polyphenol antioxidant activity Free-radical scavenger donating phenolic hydrogen atoms to peroxyl radicals (ROO•), breaking lipid auto-oxidation chain
Common Target Foods
Prepared mustard, curry seasonings, margarine, cheese rinds, confectionery Vegetable cooking oils, margarines, infant formula, fish oil capsules, potato crisps
Dietary Compliance
100% Vegan (Turmeric root extraction), Halal, Kosher Certified 100% Vegan (Plant oil distillate), Halal, Kosher Certified
Safety Approval
EFSA Authorized / FDA GRAS (21 CFR 73.600) EFSA Authorized / FDA GRAS (21 CFR 184.1890)
Chemical Formula
C21H20O6 —
Active Isomers
— d-Gamma-Tocopherol, d-Delta-Tocopherol, d-Alpha-Tocopherol

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