Side-by-Side Comparison
Food Additives & E-Numbers
E211: Sodium Benzoate (Acid Beverage Preservative) vs. E330: Citric Acid (Universal Acidulant / Chelator)
Comparing 2 standards across 9 specifications. 9 key differences identified.
Comparing:
E211: Sodium Benzoate (Acid Beverage Preservative)
E330: Citric Acid (Universal Acidulant / Chelator)
E211 (Sodium Benzoate) is the sodium salt of benzoic acid, highly soluble and active against yeasts and bacteria in acidic environments (pH < 4.5). INS 211, group ADI is 5 mg/kg bw/day, the standard antimicrobial in carbonated soft drinks and fruit juices.
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
9 Parameters| Parameter / Spec | ||
|---|---|---|
|
E-Number Code
|
E211 | E330 |
|
INS / Codex Number
|
INS 211 | INS 330 |
|
Functional Class
|
Preservative (Antibacterial, Antifungal) | Acidity Regulator, Acidulant, Sequestrant, Antioxidant Synergist |
|
Acceptable Daily Intake (ADI)
|
5 mg / kg body weight per day (as benzoic acid equivalent) | Not Limited (Quantum Satis) |
|
Chemical Formula
|
C7H5NaO2 | C6H8O7 (2-hydroxypropane-1,2,3-tricarboxylic acid) |
|
Primary Mechanism
|
In acidic media, converts to lipophilic undissociated benzoic acid which disrupts intracellular pH and anaerobic glycolysis in microbes | Delivers bright citrus sourness; chelates pro-oxidant metal ions (Fe/Cu); activates pectin gelation |
|
Common Target Foods
|
Acidic soft drinks, sparkling waters, salad dressings, jams, pickles, soy sauce | Citrus beverages, candy/confectionery, jams, canned tomatoes, cheese curdling, soft drinks |
|
Dietary Compliance
|
Vegan, Halal, Kosher | 100% Vegan (Aspergillus fungal sugar fermentation), Halal, Kosher |
|
Safety Approval
|
EFSA Authorized / FDA GRAS (21 CFR 184.1733) | EFSA Authorized / FDA GRAS (21 CFR 184.1033) |
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