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

E290: Carbon Dioxide (Carbonation & MAP Gas) vs. E410: Locust Bean Gum (Carob Bean Gum / LBG)

Comparing 2 standards across 10 specifications. 9 key differences identified.

Comparing:
E290: Carbon Dioxide (Carbonation & MAP Gas)
E410: Locust Bean Gum (Carob Bean Gum / LBG)

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).

View full E290: Carbon Dioxide (Carbonation & MAP Gas) spec sheet →

E410 (Locust Bean Gum / LBG) is a galactomannan polysaccharide milled from the seeds of the carob tree (Ceratonia siliqua). INS 410, ADI is Not Limited (Quantum Satis), providing smooth melt-down and freeze-thaw ice crystal inhibition in premium ice creams.

View full E410: Locust Bean Gum (Carob Bean Gum / LBG) spec sheet →

Specification Comparison Table

10 Parameters
Parameter / Spec
E-Number Code
E290 E410
INS / Codex Number
INS 290 INS 410
Functional Class
Carbonating Gas, Packaging Gas, Preservative, Propellant Thickener, Stabilizer, Syneresis Inhibitor
Acceptable Daily Intake (ADI)
Not Limited (Quantum Satis) Not Limited (Quantum Satis)
Primary Mechanism
Dissolves in water forming carbonic acid (H2CO3) for effervescence; displaces O2 in packaging to block aerobic mold growth Synergistically cross-links with xanthan gum and carrageenan to form elastic gels and halt ice crystallization
Common Target Foods
Carbonated soft drinks, sparkling water, beer, champagne, MAP bagged salads, fresh meats Ice creams (prevents icy graininess), cream cheeses, infant formula thickeners, fruit sauces
Dietary Compliance
100% Vegan, Halal, Kosher 100% Vegan (Carob tree seed endosperm), Halal, Kosher
Safety Approval
EFSA Authorized / FDA GRAS (21 CFR 184.1240) EFSA Authorized / FDA GRAS (21 CFR 184.1343)
Chemical Formula
CO2
Mannose to Galactose Ratio
4 : 1 (High mannose backbone requires heating to 85°C for full hydration)

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