Side-by-Side Comparison
Food Additives & E-Numbers
E334: L-Tartaric Acid (Wine & Baking Acidulant) vs. E415: Xanthan Gum (Pseudoplastic Hydrocolloid Thickener)
Comparing 2 standards across 16 specifications. 16 key differences identified.
Comparing:
E334: L-Tartaric Acid (Wine & Baking Acidulant)
E415: Xanthan Gum (Pseudoplastic Hydrocolloid Thickener)
E334 (L(+)-Tartaric Acid) is a dicarboxylic organic acid recovered as potassium bitartrate by-product from wine barrels. INS 334, ADI has historically been set at up to 20 mg/kg bw/day by JECFA, delivering a sharp, lingering tartness in candies, soft drinks, and baking powders.
Xanthan gum (E415) is a high-molecular-weight microbial exopolysaccharide produced by Xanthomonas campestris fermentation, renowned for extreme pseudoplastic shear-thinning rheology, freeze-thaw stability, and gluten-free dough structural binding.
Specification Comparison Table
16 Parameters| Parameter / Spec | ||
|---|---|---|
|
E-Number Code
|
E334 | — |
|
INS / Codex Number
|
INS 334 | — |
|
Functional Class
|
Acidity Regulator, Acidulant, Synergist for Antioxidants | — |
|
Acceptable Daily Intake (ADI)
|
Historically up to 20 mg / kg body weight per day (JECFA: 0–6 mg/kg unconditional + 6–20 mg/kg conditional acceptance) | — |
|
Chemical Formula
|
C4H6O6 (2,3-dihydroxybutanedioic acid) | — |
|
Primary Mechanism
|
Stronger sourness profile than citric acid (pKa1 2.98), stimulating salivation and activating baking soda | — |
|
Common Target Foods
|
Hard sour candies, baking powder (Cream of tartar), grape beverages, wine adjustment | — |
|
Dietary Compliance
|
100% Vegan (Wine by-product), Halal, Kosher | — |
|
Safety Approval
|
EFSA Authorized / FDA GRAS (21 CFR 184.1099) | — |
|
INS / E-Number
|
— | INS 415 / E415 |
|
Polymer Structure
|
— | Cellulose β-(1,4)-D-glucan backbone with trisaccharide side chains (mannose-glucuronic acid-mannose) |
|
Molecular Weight
|
— | 2.0 × 10⁶ to 5.0 × 10⁶ Da (2–5 MDa) |
|
Rheological Behavior
|
— | Extreme Pseudoplasticity (Shear-thinning index n ≈ 0.15–0.25) |
|
Yield Stress
|
— | High at rest (suspends dense particulates like herbs in salad dressing permanently) |
|
Thermal Stability
|
— | Maintains constant viscosity from 0°C to 100°C across pH 2.0 to 12.0 |
|
Synergistic Gelation
|
— | Forms thermo-reversible firm gels when blended with Locust Bean Gum (E410) or Guar Gum (E412) |
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