E160a: Beta-Carotene (Provitamin A Orange Color) vs. E621: Monosodium Glutamate (MSG / Umami Flavor Enhancer)
Comparing 2 standards across 13 specifications. 13 key differences identified.
E160a (Beta-Carotene) is a fat-soluble orange carotenoid tetraterpenoid obtained by synthesis, fermentation of Blakeslea trispora, or plant extraction. INS 160a(i)/(ii), ADI is Not Specified, providing deep orange-yellow hues in dairy, juices, and fats.
Monosodium Glutamate (E621, MSG, C5H8NO4Na) is the sodium salt of L-glutamic acid produced via Corynebacterium glutamicum sugar fermentation, activating human T1R1/T1R3 heterodimer umami taste receptors to enhance savory mouthfeel.
Specification Comparison Table
13 Parameters| Parameter / Spec | ||
|---|---|---|
|
Functional Class
|
Food Color (Yellow-Orange), Provitamin A Fortificant | Flavor Enhancer (Umami savory tastant) |
|
Acceptable Daily Intake (ADI)
|
Not Specified (Quantum Satis from dietary/fermentation forms) | 30 mg/kg body weight per day (EFSA 2017) / Not Specified (JECFA 1987) |
|
Chemical Formula
|
C40H56 | C₅H₈NO₄Na · H₂O (Sodium 2-aminopentanedioate monohydrate) |
|
E-Number Code
|
E160a | — |
|
INS / Codex Number
|
INS 160a(i) / 160a(ii) | — |
|
Primary Mechanism
|
11 conjugated double-bond chromophore system absorbing blue-violet light; converts into 2 molecules of retinol (Vitamin A) | — |
|
Common Target Foods
|
Butter, margarine, processed cheeses, orange juices, baked pastries | — |
|
Dietary Compliance
|
Vegan (Plant/Fermentation), Halal, Kosher Certified | — |
|
Safety Approval
|
EFSA Authorized / FDA GRAS (21 CFR 73.95) | — |
|
INS / E-Number
|
— | INS 621 / E621 |
|
Taste Receptor Target
|
— | T1R1 + T1R3 G-protein coupled receptor (GPCR) heterodimer + mGluR4 |
|
Sodium Content
|
— | 12.3% Sodium by weight (compared to 39.3% in standard table salt NaCl) |
|
Synergistic Umami Multiplication
|
— | 1:1 ratio with E627 (Disodium Guanylate) / E631 (Disodium Inosinate) increases umami perception up to 8-fold |