Side-by-Side Comparison
Food Additives & E-Numbers
E290: Carbon Dioxide (Carbonation & MAP Gas) vs. E509: Calcium Chloride (Firming Agent / Cheese Salt)
Comparing 2 standards across 9 specifications. 8 key differences identified.
Comparing:
E290: Carbon Dioxide (Carbonation & MAP Gas)
E509: Calcium Chloride (Firming Agent / Cheese Salt)
E290 (Carbon Dioxide / CO2) is an authorized food additive functioning as a carbonating gas, modified atmosphere packaging (MAP) preservative, and cryogenic freezing propellant. INS 290, ADI is Not Limited (Quantum Satis).
E509 (Calcium Chloride / CaCl2) is an inorganic calcium mineral salt. INS 509, ADI is Not Limited (Quantum Satis), serving as a crucial firming agent in canned tomatoes, tofu coagulant, and rennet coagulation restorer in pasteurized milk cheese making.
Specification Comparison Table
9 Parameters| Parameter / Spec | ||
|---|---|---|
|
E-Number Code
|
E290 | E509 |
|
INS / Codex Number
|
INS 290 | INS 509 |
|
Functional Class
|
Carbonating Gas, Packaging Gas, Preservative, Propellant | Firming Agent, Coagulant, Sequestrant, Electrolyte |
|
Acceptable Daily Intake (ADI)
|
Not Limited (Quantum Satis) | Not Limited (Quantum Satis) |
|
Chemical Formula
|
CO2 | CaCl2 |
|
Primary Mechanism
|
Dissolves in water forming carbonic acid (H2CO3) for effervescence; displaces O2 in packaging to block aerobic mold growth | Divalent Ca2+ ions cross-link pectin galacturonan chains in plant cell walls and bridge casein micelles in milk |
|
Common Target Foods
|
Carbonated soft drinks, sparkling water, beer, champagne, MAP bagged salads, fresh meats | Canned whole peeled tomatoes (prevents mushiness), pasteurized cheese vats, soy tofu coagulation, sports pickles |
|
Dietary Compliance
|
100% Vegan, Halal, Kosher | Vegan (Natural brine/limestone salt), Halal, Kosher |
|
Safety Approval
|
EFSA Authorized / FDA GRAS (21 CFR 184.1240) | EFSA Authorized / FDA GRAS (21 CFR 184.1193) |
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