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

E100: Curcumin (Turmeric Yellow Color) vs. E101: Riboflavin (Vitamin B2 Yellow Color)

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

Comparing:
E100: Curcumin (Turmeric Yellow Color)
E101: Riboflavin (Vitamin B2 Yellow Color)
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 →
E101: Riboflavin (Vitamin B2 Yellow Color) →

E101 (Riboflavin / Vitamin B2) is an authorized yellow food colorant and essential micronutrient produced via microbial fermentation of Ashbya gossypii. INS 101(i), ADI is 0.5 mg/kg bw/day, commonly used to fortify cereals and color sauces.

View full E101: Riboflavin (Vitamin B2 Yellow Color) spec sheet →

Specification Comparison Table

9 Parameters
Parameter / Spec
E100: Curcumin (Turmeric Yellow Color)
E101: Riboflavin (Vitamin B2 Yellow Color)
E-Number Code
E100 E101
INS / Codex Number
INS 100(i) INS 101(i)
Functional Class
Food Color (Yellow-Orange) Food Color (Yellow-Orange), Nutrient Fortificant
Acceptable Daily Intake (ADI)
3 mg / kg body weight per day 0.5 mg / kg body weight per day
Chemical Formula
C21H20O6 C17H20N4O6
Primary Mechanism
Light absorption at 420–430nm producing vibrant golden-yellow hue; polyphenol antioxidant activity Yellow chromophore acting as precursor to flavin coenzymes (FAD/FMN)
Common Target Foods
Prepared mustard, curry seasonings, margarine, cheese rinds, confectionery Fortified breakfast cereals, baby foods, pasta, dairy desserts, energy drinks
Dietary Compliance
100% Vegan (Turmeric root extraction), Halal, Kosher Certified 100% Vegan (Microbial fermentation), Halal, Kosher
Safety Approval
EFSA Authorized / FDA GRAS (21 CFR 73.600) EFSA Authorized / FDA GRAS (21 CFR 73.450)

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