Comparing E334 - L(+)-tartaric acid vs E490 - Propylene glycol
Overview
Synonyms
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Found in 2,434 products
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Search rank & volume
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Search volume over time
Interest over time for 9 keywords in U.S. during the last 10 years.
Interest over time for 9 keywords in U.S. during the last 10 years.
Popular questions
Is tartaric acid bad for you?
No—L(+)-tartaric acid (E334) is approved for use in foods (e.g., EU E-number; FDA GRAS) and is considered safe at typical levels; very high intakes may cause stomach upset, and only the L(+)-form is used as an additive.
What is tartaric acid used for?
It’s used as an acidulant to add sourness and control pH, and as an antioxidant/sequestrant; it also partners with baking soda in leavening and is added to wine to adjust acidity.
How much tartaric acid to add to wine?
It depends on your must/wine’s pH and titratable acidity—bench trials are essential; as a rule of thumb, 1 g/L tartaric acid raises TA by about 1 g/L and can lower pH by ~0.1–0.3, with typical adjustments in the 0.5–2 g/L range subject to local regulations.
What does tartaric acid do?
It provides a sharp, tart flavor while regulating acidity, chelating metals, and limiting oxidation; in baking it reacts with sodium bicarbonate to release CO2, and in wine it helps set acid balance and stability.
What foods have tartaric acid?
It occurs naturally in grapes, wine, and tamarind (also in smaller amounts in some fruits), and as an additive it’s found in soft drinks, candies, jams/jellies, gelatin desserts, and baking powders/cream of tartar.
Is propylene glycol safe?
Yes—when used within regulatory limits in foods, propylene glycol is considered safe; the FDA classifies it as GRAS and EFSA set an acceptable daily intake of 25 mg/kg body weight per day.
What is propylene glycol used for?
In foods it acts as a solvent and carrier for flavors and colors, a humectant to retain moisture, and sometimes a stabilizer; it’s also used as a solvent in medicines and cosmetics.
Does propylene glycol cause cancer?
No—major health agencies do not classify propylene glycol as carcinogenic, and studies have not linked typical exposures to cancer.
Is propylene glycol antifreeze?
Yes, it’s used as a less‑toxic antifreeze/heat‑transfer fluid (e.g., RV or food‑industry systems), which is separate from its low‑level use in foods.
Is propylene glycol bad for you?
At normal food levels it isn’t considered harmful; very high intakes can cause irritation or metabolic effects, and people with kidney or liver disease and infants may be more sensitive.