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

E224: Potassium Metabisulfite (Campden Salt) vs. E414: Gum Arabic (Acacia Gum Emulsifier)

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

Comparing:
E224: Potassium Metabisulfite (Campden Salt)
E414: Gum Arabic (Acacia Gum Emulsifier)
E224: Potassium Metabisulfite (Campden Salt) →

E224 (Potassium Metabisulfite / K2S2O5) is a white crystalline powder releasing 57.6% sulfur dioxide by weight when dissolved in acidic liquids. INS 224, ADI is 0.7 mg/kg bw/day, the premier sanitizing and stabilizing agent in commercial winemaking.

View full E224: Potassium Metabisulfite (Campden Salt) spec sheet →
E414: Gum Arabic (Acacia Gum Emulsifier) →

E414 (Gum Arabic / Acacia Gum) is a complex arabinogalactan-protein glycoprotein exudate harvested from Acacia senegal trees. INS 414, ADI is Not Limited (Quantum Satis), the premier film-forming emulsifier for citrus beverage flavor oils.

View full E414: Gum Arabic (Acacia Gum Emulsifier) spec sheet →

Specification Comparison Table

10 Parameters
Parameter / Spec
E224: Potassium Metabisulfite (Campden Salt)
E414: Gum Arabic (Acacia Gum Emulsifier)
E-Number Code
E224 E414
INS / Codex Number
INS 224 INS 414
Functional Class
Preservative, Antioxidant, Sanitizer Emulsifier, Stabilizer, Encapsulating Agent, Prebiotic Fiber
Acceptable Daily Intake (ADI)
0.7 mg / kg body weight per day (as SO2 equivalent) Not Limited (Quantum Satis)
Primary Mechanism
Releases free SO2 and potassium ions, neutralizing wild yeasts and preventing enzymatic must oxidation Amphiphilic glycoprotein anchors hydrophobic oil droplets while polysaccharide branches project into water, preventing coalescence
Common Target Foods
Grape must, commercial wines, ciders, lemon juice concentrates, dried fruit processing Citrus soft drinks (Suspends essential oils), gummy candies, confectionery pan coatings, flavor spray drying
Dietary Compliance
Vegan, Halal, Kosher (Allergen labeling required) 100% Vegan (Wild Acacia tree gum), Halal, Kosher
Safety Approval
EFSA Authorized / FDA GRAS (21 CFR 182.3637) EFSA Authorized / FDA GRAS (21 CFR 184.1330)
Chemical Formula
K2S2O5 —
Chemical Structure
— Arabinogalactan core covalently linked to hydroxyproline-rich peptide chains (~2% protein)

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