Side-by-Side Comparison
Food Additives & E-Numbers
E306: Tocopherol-Rich Extract (Natural Vitamin E Antioxidant) vs. E501: Potassium Carbonate (Potash / Alkaline Noodle Salt)
Comparing 2 standards across 10 specifications. 9 key differences identified.
Comparing:
E306: Tocopherol-Rich Extract (Natural Vitamin E Antioxidant)
E501: Potassium Carbonate (Potash / Alkaline Noodle Salt)
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.
E501 (Potassium Carbonates / K2CO3) is an inorganic alkaline mineral salt. INS 501(i), ADI is Not Limited (Quantum Satis), used as the key 'Kansui' alkaline agent in Japanese ramen noodles and in the Dutch processing of cocoa powder.
Specification Comparison Table
10 Parameters| Parameter / Spec | ||
|---|---|---|
|
E-Number Code
|
E306 | E501 |
|
INS / Codex Number
|
INS 306 | INS 501(i) (Potassium Carbonate) |
|
Functional Class
|
Antioxidant (Lipid Peroxidation Inhibitor) | Acidity Regulator, Alkaline Leavening, Kansui Salt |
|
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 | Alkalinizes noodle dough (pH 9–11), tightening glutenin network and converting flavonoid pigments yellow |
|
Common Target Foods
|
Vegetable cooking oils, margarines, infant formula, fish oil capsules, potato crisps | Ramen noodles (Kansui), Dutch-process alkalized cocoa powder, gingerbread leavening |
|
Dietary Compliance
|
100% Vegan (Plant oil distillate), Halal, Kosher Certified | Vegan (Mineral salt), Halal, Kosher |
|
Safety Approval
|
EFSA Authorized / FDA GRAS (21 CFR 184.1890) | EFSA Authorized / FDA GRAS (21 CFR 184.1619) |
|
Active Isomers
|
d-Gamma-Tocopherol, d-Delta-Tocopherol, d-Alpha-Tocopherol | — |
|
Chemical Formula
|
— | K2CO3 |
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