E163: Anthocyanins (Grape Skin & Berry Red/Purple) vs. E330: Citric Acid (Universal Acidulant / Chelator)
Comparing 2 standards across 10 specifications. 10 key differences identified.
E163 (Anthocyanins) are natural water-soluble flavonoid polyphenol pigments extracted from grape skins, elderberries, and black carrots. INS 163, ADI is 2.5 mg/kg bw/day (grape skin extract), exhibiting pH-dependent colors from red to blue.
E330 (Citric Acid) is a tricarboxylic organic acid produced by industrial fermentation of Aspergillus niger on carbohydrate substrates. INS 330, ADI is Not Limited (Quantum Satis), the single most widely used acidulant, flavor enhancer, and metal chelator on Earth.
Specification Comparison Table
10 Parameters| Parameter / Spec | ||
|---|---|---|
|
E-Number Code
|
E163 | E330 |
|
INS / Codex Number
|
INS 163(i)–(v) | INS 330 |
|
Functional Class
|
Food Color (Red, Purple, Blue) | Acidity Regulator, Acidulant, Sequestrant, Antioxidant Synergist |
|
Acceptable Daily Intake (ADI)
|
2.5 mg / kg body weight per day (as anthocyanins) | Not Limited (Quantum Satis) |
|
Primary Mechanism
|
Flavylium cation red at pH 1–3, converting to blue quinoidal base at neutral/alkaline pH | Delivers bright citrus sourness; chelates pro-oxidant metal ions (Fe/Cu); activates pectin gelation |
|
Common Target Foods
|
Red fruit beverages, sports drinks, jams, jellies, wine gums | Citrus beverages, candy/confectionery, jams, canned tomatoes, cheese curdling, soft drinks |
|
Dietary Compliance
|
100% Vegan (Fruit/Vegetable extraction), Halal, Kosher | 100% Vegan (Aspergillus fungal sugar fermentation), Halal, Kosher |
|
Safety Approval
|
EFSA Authorized / FDA 21 CFR 73.170 | EFSA Authorized / FDA GRAS (21 CFR 184.1033) |
|
Key Flavylium Cations
|
Cyanidin, Delphinidin, Malvidin, Peonidin, Petunidin | — |
|
Chemical Formula
|
— | C6H8O7 (2-hydroxypropane-1,2,3-tricarboxylic acid) |