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

E150d: Sulfite Ammonia Caramel (Class IV Caramel) vs. E220: Sulfur Dioxide (Antioxidant & Wine Preservative)

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

Comparing:
E150d: Sulfite Ammonia Caramel (Class IV Caramel)
E220: Sulfur Dioxide (Antioxidant & Wine Preservative)
E150d: Sulfite Ammonia Caramel (Class IV Caramel) →

E150d (Class IV Caramel) is prepared by heating carbohydrates with both sulfite and ammonium compounds, creating an intensely dark, negatively charged colloid. INS 150d, group ADI is 300 mg/kg bw/day, the global color standard in cola soft drinks.

View full E150d: Sulfite Ammonia Caramel (Class IV Caramel) spec sheet →
E220: Sulfur Dioxide (Antioxidant & Wine Preservative) →

E220 (Sulfur Dioxide / SO2) is an inorganic gas dissolved in water to generate bisulfite and sulfite ions, providing potent antimicrobial and polyphenol oxidase enzyme-inhibiting properties. INS 220, group ADI is 0.7 mg/kg bw/day.

View full E220: Sulfur Dioxide (Antioxidant & Wine Preservative) spec sheet →

Specification Comparison Table

10 Parameters
Parameter / Spec
E150d: Sulfite Ammonia Caramel (Class IV Caramel)
E220: Sulfur Dioxide (Antioxidant & Wine Preservative)
E-Number Code
E150d E220
INS / Codex Number
INS 150d INS 220
Functional Class
Food Color (Deep Brown / Black) Preservative, Antioxidant, Enzymatic Browning Inhibitor
Acceptable Daily Intake (ADI)
300 mg / kg body weight per day (Group ADI for caramel colors) 0.7 mg / kg body weight per day (as SO2 equivalent)
Primary Mechanism
High tinctorial power melanoidin polymers soluble and stable in carbonated phosphoric acid matrix Molecular SO2 penetrates microbial membranes; bisulfite (HSO3-) cleaves disulfide bonds in enzymes and binds acetaldehyde
Common Target Foods
Cola soft drinks, dark beers/stouts, gravies, pet foods, soy sauce Wines (Contains sulfites declaration >10mg/L), dried apricots, ciders, potato starch
Dietary Compliance
Vegan (Sugar/syrup base), Halal, Kosher Vegan, Halal, Kosher, Major Allergen Declaration Mandatory
Safety Approval
EFSA Authorized / FDA GRAS (Strictly controlled 4-MEI limits) EFSA Authorized / FDA GRAS (21 CFR 182.3862 - Banned on raw produce)
Isoelectric Point & Charge
Strong negative colloidal charge (pH 0.5–2.0) preventing precipitation in acid sodas —
Chemical Formula
— SO2

Other Alternatives to Compare

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E150d: Sulfite Ammonia Caramel (Class IV Caramel) vs. E200: Sorbic Acid (Antifungal Preservative) → Compare E150d: Sulfite Ammonia Caramel (Class IV Caramel) vs. E202: Potassium Sorbate (Soluble Antimicrobial) → Compare E150d: Sulfite Ammonia Caramel (Class IV Caramel) vs. E211: Sodium Benzoate (Acid Beverage Preservative) → Compare E150d: Sulfite Ammonia Caramel (Class IV Caramel) vs. E224: Potassium Metabisulfite (Campden Salt) → Compare E150d: Sulfite Ammonia Caramel (Class IV Caramel) vs. E250: Sodium Nitrite (Curing Salt / Anti-Botulism Preservative) → Compare E150d: Sulfite Ammonia Caramel (Class IV Caramel) vs. E251: Sodium Nitrate (Chile Saltpeter / Slow Curing) → Compare E150d: Sulfite Ammonia Caramel (Class IV Caramel) vs. E260: Acetic Acid (Vinegar Acidulant / Preservative) → Compare E150d: Sulfite Ammonia Caramel (Class IV Caramel) vs. E270: Lactic Acid (Biological Acidulant) → Compare E150d: Sulfite Ammonia Caramel (Class IV Caramel) vs. E282: Calcium Propionate (Bread Anti-Mold) → Compare E150d: Sulfite Ammonia Caramel (Class IV Caramel) vs. E290: Carbon Dioxide (Carbonation & MAP Gas) → Compare E150d: Sulfite Ammonia Caramel (Class IV Caramel) vs. E300: L-Ascorbic Acid (Vitamin C Antioxidant & Flour Improver) → Compare E150d: Sulfite Ammonia Caramel (Class IV Caramel) vs. E306: Tocopherol-Rich Extract (Natural Vitamin E Antioxidant) → Compare E150d: Sulfite Ammonia Caramel (Class IV Caramel) vs. E322: Lecithin (Phospholipid Emulsifier & Viscosity Reducer) → Compare E150d: Sulfite Ammonia Caramel (Class IV Caramel) vs. E330: Citric Acid (Universal Acidulant / Chelator) → Compare E150d: Sulfite Ammonia Caramel (Class IV Caramel) vs. E334: L-Tartaric Acid (Wine & Baking Acidulant) → Compare E150d: Sulfite Ammonia Caramel (Class IV Caramel) vs. E338: Phosphoric Acid (Cola Acidulant) → Compare E150d: Sulfite Ammonia Caramel (Class IV Caramel) vs. E406: Agar-Agar (Seaweed Hydrocolloid Gel) → Compare E150d: Sulfite Ammonia Caramel (Class IV Caramel) vs. E407: Carrageenan (Dairy Stabilizer Hydrocolloid) → Compare E150d: Sulfite Ammonia Caramel (Class IV Caramel) vs. E410: Locust Bean Gum (Carob Bean Gum / LBG) → Compare E150d: Sulfite Ammonia Caramel (Class IV Caramel) vs. E412: Guar Gum (Cold-Soluble Galactomannan) → Compare E150d: Sulfite Ammonia Caramel (Class IV Caramel) vs. E414: Gum Arabic (Acacia Gum Emulsifier) → Compare E150d: Sulfite Ammonia Caramel (Class IV Caramel) vs. E415: Xanthan Gum (Pseudoplastic Hydrocolloid Thickener) → Compare E150d: Sulfite Ammonia Caramel (Class IV Caramel) vs. E422: Glycerol (Glycerin Humectant & Solvent) → Compare E150d: Sulfite Ammonia Caramel (Class IV Caramel) vs. E440: Pectin (Citrus & Apple Jam Gelling Fiber) → Compare E150d: Sulfite Ammonia Caramel (Class IV Caramel) vs. E460: Microcrystalline Cellulose (MCC / Dietary Bulking) → Compare E150d: Sulfite Ammonia Caramel (Class IV Caramel) vs. E471: Mono- & Diglycerides of Fatty Acids (Bread Softener) → Compare E150d: Sulfite Ammonia Caramel (Class IV Caramel) vs. E500: Sodium Bicarbonate (Baking Soda / Ins 500ii) → Compare E150d: Sulfite Ammonia Caramel (Class IV Caramel) vs. E501: Potassium Carbonate (Potash / Alkaline Noodle Salt) → Compare E150d: Sulfite Ammonia Caramel (Class IV Caramel) vs. E503: Ammonium Bicarbonate (Baker's Ammonia / Hartshorn) → Compare E150d: Sulfite Ammonia Caramel (Class IV Caramel) vs. E509: Calcium Chloride (Firming Agent / Cheese Salt) → Compare E150d: Sulfite Ammonia Caramel (Class IV Caramel) vs. E621: Monosodium Glutamate (MSG / Umami Flavor Enhancer) → Compare E150d: Sulfite Ammonia Caramel (Class IV Caramel) vs. E627: Disodium Guanylate (GMP Umami Synergist) → Compare E150d: Sulfite Ammonia Caramel (Class IV Caramel) vs. E631: Disodium Inosinate (IMP Meat Umami Synergist) → Compare E150d: Sulfite Ammonia Caramel (Class IV Caramel) vs. E635: Disodium 5'-Ribonucleotides (I+G Blend) → Compare E150d: Sulfite Ammonia Caramel (Class IV Caramel) vs. E950: Acesulfame Potassium (Ace-K / 200x Sweetener) → Compare E150d: Sulfite Ammonia Caramel (Class IV Caramel) vs. E951: Aspartame (Dipeptide Sweetener / 200x) → Compare E150d: Sulfite Ammonia Caramel (Class IV Caramel) vs. E955: Sucralose (Splenda / 600x Heat-Stable Sweetener) → Compare E150d: Sulfite Ammonia Caramel (Class IV Caramel) vs. E960: Steviol Glycosides (Reb-A / Stevia Extract) → Compare E150d: Sulfite Ammonia Caramel (Class IV Caramel) vs. E965: Maltitol (Sugar Alcohol / 90% Sweetness) → Compare E150d: Sulfite Ammonia Caramel (Class IV Caramel) vs. E967: Xylitol (Birch Sugar / Dental Caries Inhibitor) → Compare E150d: Sulfite Ammonia Caramel (Class IV Caramel) vs. E968: Erythritol (Zero-Calorie Fermented Polyol) →