Side-by-Side Comparison
Food Additives & E-Numbers
E334: L-Tartaric Acid (Wine & Baking Acidulant) vs. E951: Aspartame (Dipeptide Sweetener / 200x)
Comparing 2 standards across 11 specifications. 11 key differences identified.
Comparing:
E334: L-Tartaric Acid (Wine & Baking Acidulant)
E951: Aspartame (Dipeptide Sweetener / 200x)
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.
E951 (Aspartame) is a methyl ester of the aspartic acid/phenylalanine dipeptide yielding ~200x the sweetness of sucrose. INS 951, ADI is 40 mg/kg bw/day, the historic sweetener in Diet Coke and tabletop sweetener packets.
Specification Comparison Table
11 Parameters| Parameter / Spec | ||
|---|---|---|
|
E-Number Code
|
E334 | E951 |
|
INS / Codex Number
|
INS 334 | INS 951 |
|
Functional Class
|
Acidity Regulator, Acidulant, Synergist for Antioxidants | High-Intensity Artificial Sweetener |
|
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) | 40 mg / kg body weight per day (US FDA: 50 mg/kg) |
|
Primary Mechanism
|
Stronger sourness profile than citric acid (pKa1 2.98), stimulating salivation and activating baking soda | Stimulates T1R2/T1R3 sweet taste receptors with clean, sugar-like taste profile |
|
Common Target Foods
|
Hard sour candies, baking powder (Cream of tartar), grape beverages, wine adjustment | Diet sodas, tabletop sweetener packets (Equal), sugar-free gelatin desserts, drink mixes |
|
Dietary Compliance
|
100% Vegan (Wine by-product), Halal, Kosher | Vegetarian, Halal, Kosher, Contains Phenylalanine (Warning for PKU patients mandatory) |
|
Safety Approval
|
EFSA Authorized / FDA GRAS (21 CFR 184.1099) | EFSA Authorized / FDA Approved (21 CFR 172.804) |
|
Chemical Formula
|
C4H6O6 (2,3-dihydroxybutanedioic acid) | — |
|
Relative Sweetness Index
|
— | 200x Sucrose |
|
Caloric Value
|
— | 4.0 kcal / g (Negligible at use levels / ~0.1 kcal per serving) kcal/g |
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