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

E306: Tocopherol-Rich Extract (Natural Vitamin E Antioxidant) vs. E631: Disodium Inosinate (IMP Meat Umami Synergist)

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

Comparing:
E306: Tocopherol-Rich Extract (Natural Vitamin E Antioxidant)
E631: Disodium Inosinate (IMP Meat Umami Synergist)

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 →

E631 (Disodium 5'-Inosinate / IMP) is the sodium salt of inosinic acid, a purine nucleotide naturally found in aged beef, katsuobushi bonito flakes, and cured meats. INS 631, ADI is Not Specified, multiplying glutamate umami flavor.

View full E631: Disodium Inosinate (IMP Meat Umami Synergist) spec sheet →

Specification Comparison Table

10 Parameters
Parameter / Spec
E-Number Code
E306 E631
INS / Codex Number
INS 306 INS 631
Functional Class
Antioxidant (Lipid Peroxidation Inhibitor) Flavor Enhancer (Meat Purine Umami Synergist)
Acceptable Daily Intake (ADI)
Not Limited (Quantum Satis) Not Specified (Quantum Satis)
Primary Mechanism
Free-radical scavenger donating phenolic hydrogen atoms to peroxyl radicals (ROO•), breaking lipid auto-oxidation chain Allosteric conformational stabilizer of human T1R1/T1R3 G-protein umami receptor heterodimer
Common Target Foods
Vegetable cooking oils, margarines, infant formula, fish oil capsules, potato crisps Instant soups, meat seasonings, potato chips, canned meat gravies, cured snacks
Dietary Compliance
100% Vegan (Plant oil distillate), Halal, Kosher Certified Vegan (Bacterial Corynebacterium fermentation standard), Halal, Kosher
Safety Approval
EFSA Authorized / FDA GRAS (21 CFR 184.1890) EFSA Authorized / FDA GRAS (21 CFR 172.535)
Active Isomers
d-Gamma-Tocopherol, d-Delta-Tocopherol, d-Alpha-Tocopherol
Chemical Formula
C10H11N4Na2O8P · xH2O

Other Alternatives to Compare

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(Natural Vitamin E Antioxidant) vs. E163: Anthocyanins (Grape Skin & Berry Red/Purple) → Compare E306: Tocopherol-Rich Extract (Natural Vitamin E Antioxidant) vs. E170: Calcium Carbonate (Mineral White Color / Anti-Caking) → Compare E306: Tocopherol-Rich Extract (Natural Vitamin E Antioxidant) vs. E200: Sorbic Acid (Antifungal Preservative) → Compare E306: Tocopherol-Rich Extract (Natural Vitamin E Antioxidant) vs. E202: Potassium Sorbate (Soluble Antimicrobial) → Compare E306: Tocopherol-Rich Extract (Natural Vitamin E Antioxidant) vs. E211: Sodium Benzoate (Acid Beverage Preservative) → Compare E306: Tocopherol-Rich Extract (Natural Vitamin E Antioxidant) vs. E220: Sulfur Dioxide (Antioxidant & Wine Preservative) → Compare E306: Tocopherol-Rich Extract (Natural Vitamin E Antioxidant) vs. E224: Potassium Metabisulfite (Campden Salt) → Compare E306: Tocopherol-Rich Extract (Natural Vitamin E Antioxidant) vs. E250: Sodium Nitrite (Curing Salt / Anti-Botulism Preservative) → Compare E306: Tocopherol-Rich Extract (Natural Vitamin E Antioxidant) vs. E251: Sodium Nitrate (Chile Saltpeter / Slow Curing) → Compare E306: Tocopherol-Rich Extract (Natural Vitamin E Antioxidant) vs. E260: Acetic Acid (Vinegar Acidulant / Preservative) → Compare E306: Tocopherol-Rich Extract (Natural Vitamin E Antioxidant) vs. E270: Lactic Acid (Biological Acidulant) → Compare E306: Tocopherol-Rich Extract (Natural Vitamin E Antioxidant) vs. E282: Calcium Propionate (Bread Anti-Mold) → Compare E306: Tocopherol-Rich Extract (Natural Vitamin E Antioxidant) vs. E290: Carbon Dioxide (Carbonation & MAP Gas) → Compare E306: Tocopherol-Rich Extract (Natural Vitamin E Antioxidant) vs. E300: L-Ascorbic Acid (Vitamin C Antioxidant & Flour Improver) → Compare E306: Tocopherol-Rich Extract (Natural Vitamin E Antioxidant) vs. E322: Lecithin (Phospholipid Emulsifier & Viscosity Reducer) → Compare E306: Tocopherol-Rich Extract (Natural Vitamin E Antioxidant) vs. E330: Citric Acid (Universal Acidulant / Chelator) → Compare E306: Tocopherol-Rich Extract (Natural Vitamin E Antioxidant) vs. E334: L-Tartaric Acid (Wine & Baking Acidulant) → Compare E306: Tocopherol-Rich Extract (Natural Vitamin E Antioxidant) vs. E338: Phosphoric Acid (Cola Acidulant) → Compare E306: Tocopherol-Rich Extract (Natural Vitamin E Antioxidant) vs. E406: Agar-Agar (Seaweed Hydrocolloid Gel) → Compare E306: Tocopherol-Rich Extract (Natural Vitamin E Antioxidant) vs. E407: Carrageenan (Dairy Stabilizer Hydrocolloid) → Compare E306: Tocopherol-Rich Extract (Natural Vitamin E Antioxidant) vs. E410: Locust Bean Gum (Carob Bean Gum / LBG) → Compare E306: Tocopherol-Rich Extract (Natural Vitamin E Antioxidant) vs. E412: Guar Gum (Cold-Soluble Galactomannan) → Compare E306: Tocopherol-Rich Extract (Natural Vitamin E Antioxidant) vs. E414: Gum Arabic (Acacia Gum Emulsifier) → Compare E306: Tocopherol-Rich Extract (Natural Vitamin E Antioxidant) vs. E415: Xanthan Gum (Pseudoplastic Hydrocolloid Thickener) → Compare E306: Tocopherol-Rich Extract (Natural Vitamin E Antioxidant) vs. E422: Glycerol (Glycerin Humectant & Solvent) → Compare E306: Tocopherol-Rich Extract (Natural Vitamin E Antioxidant) vs. E440: Pectin (Citrus & Apple Jam Gelling Fiber) → Compare E306: Tocopherol-Rich Extract (Natural Vitamin E Antioxidant) vs. E460: Microcrystalline Cellulose (MCC / Dietary Bulking) → Compare E306: Tocopherol-Rich Extract (Natural Vitamin E Antioxidant) vs. E471: Mono- & Diglycerides of Fatty Acids (Bread Softener) → Compare E306: Tocopherol-Rich Extract (Natural Vitamin E Antioxidant) vs. E500: Sodium Bicarbonate (Baking Soda / Ins 500ii) → Compare E306: Tocopherol-Rich Extract (Natural Vitamin E Antioxidant) vs. E501: Potassium Carbonate (Potash / Alkaline Noodle Salt) → Compare E306: Tocopherol-Rich Extract (Natural Vitamin E Antioxidant) vs. E503: Ammonium Bicarbonate (Baker's Ammonia / Hartshorn) → Compare E306: Tocopherol-Rich Extract (Natural Vitamin E Antioxidant) vs. E509: Calcium Chloride (Firming Agent / Cheese Salt) → Compare E306: Tocopherol-Rich Extract (Natural Vitamin E Antioxidant) vs. E621: Monosodium Glutamate (MSG / Umami Flavor Enhancer) → Compare E306: Tocopherol-Rich Extract (Natural Vitamin E Antioxidant) vs. E627: Disodium Guanylate (GMP Umami Synergist) → Compare E306: Tocopherol-Rich Extract (Natural Vitamin E Antioxidant) vs. E635: Disodium 5'-Ribonucleotides (I+G Blend) → Compare E306: Tocopherol-Rich Extract (Natural Vitamin E Antioxidant) vs. E950: Acesulfame Potassium (Ace-K / 200x Sweetener) → Compare E306: Tocopherol-Rich Extract (Natural Vitamin E Antioxidant) vs. E951: Aspartame (Dipeptide Sweetener / 200x) → Compare E306: Tocopherol-Rich Extract (Natural Vitamin E Antioxidant) vs. E955: Sucralose (Splenda / 600x Heat-Stable Sweetener) → Compare E306: Tocopherol-Rich Extract (Natural Vitamin E Antioxidant) vs. E960: Steviol Glycosides (Reb-A / Stevia Extract) → Compare E306: Tocopherol-Rich Extract (Natural Vitamin E Antioxidant) vs. E965: Maltitol (Sugar Alcohol / 90% Sweetness) → Compare E306: Tocopherol-Rich Extract (Natural Vitamin E Antioxidant) vs. E967: Xylitol (Birch Sugar / Dental Caries Inhibitor) → Compare E306: Tocopherol-Rich Extract (Natural Vitamin E Antioxidant) vs. E968: Erythritol (Zero-Calorie Fermented Polyol) →