Side-by-Side Comparison
Food Additives & E-Numbers
E306: Tocopherol-Rich Extract (Natural Vitamin E Antioxidant) vs. E330: Citric Acid (Universal Acidulant / Chelator)
Comparing 2 standards across 10 specifications. 9 key differences identified.
Comparing:
E306: Tocopherol-Rich Extract (Natural Vitamin E Antioxidant)
E330: Citric Acid (Universal Acidulant / Chelator)
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.
E330 (Citric Acid) is a tricarboxylic organic acid produced by industrial fermentation of Aspergillus niger on carbohydrate substrates. INS 330, ADI is Not Limited (Quantum Satis), the single most widely used acidulant, flavor enhancer, and metal chelator on Earth.
Specification Comparison Table
10 Parameters| Parameter / Spec | ||
|---|---|---|
|
E-Number Code
|
E306 | E330 |
|
INS / Codex Number
|
INS 306 | INS 330 |
|
Functional Class
|
Antioxidant (Lipid Peroxidation Inhibitor) | Acidity Regulator, Acidulant, Sequestrant, Antioxidant Synergist |
|
Acceptable Daily Intake (ADI)
|
Not Limited (Quantum Satis) | Not Limited (Quantum Satis) |
|
Primary Mechanism
|
Free-radical scavenger donating phenolic hydrogen atoms to peroxyl radicals (ROO•), breaking lipid auto-oxidation chain | Delivers bright citrus sourness; chelates pro-oxidant metal ions (Fe/Cu); activates pectin gelation |
|
Common Target Foods
|
Vegetable cooking oils, margarines, infant formula, fish oil capsules, potato crisps | Citrus beverages, candy/confectionery, jams, canned tomatoes, cheese curdling, soft drinks |
|
Dietary Compliance
|
100% Vegan (Plant oil distillate), Halal, Kosher Certified | 100% Vegan (Aspergillus fungal sugar fermentation), Halal, Kosher |
|
Safety Approval
|
EFSA Authorized / FDA GRAS (21 CFR 184.1890) | EFSA Authorized / FDA GRAS (21 CFR 184.1033) |
|
Active Isomers
|
d-Gamma-Tocopherol, d-Delta-Tocopherol, d-Alpha-Tocopherol | — |
|
Chemical Formula
|
— | C6H8O7 (2-hydroxypropane-1,2,3-tricarboxylic acid) |
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