Comparing E392 - Extracts of rosemary vs E302 - Calcium ascorbate
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Found in 3,436 products
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Interest over time for 3 keywords in U.S. during the last 10 years.
Interest over time for 2 keywords in U.S. during the last 10 years.
Popular questions
Can dogs have rosemary extract?
Yes—small amounts of rosemary extract (E392) used as a food preservative are generally safe for dogs; avoid giving concentrated essential oils and stop if stomach upset occurs.
Can dogs eat rosemary extract?
It’s commonly used in dog foods as a natural antioxidant and is considered safe at low levels, but consult your vet if your dog is prone to seizures or is pregnant/lactating.
Can cats have rosemary extract?
In the tiny amounts used as a preservative, rosemary extract is generally considered safe for cats; do not use rosemary essential oil, as cats are very sensitive to concentrated oils.
How to extract rosemary oil?
Rosemary essential oil is typically obtained by steam distillation of the herb, producing a highly concentrated oil that is not the same as E392 and isn’t intended for ingestion without expert guidance.
How to make rosemary extract?
Commercial E392 is made by extracting rosemary with food‑grade solvents (e.g., ethanol), then purifying and standardizing carnosic acid/carnosol levels; at home you can approximate it by steeping dried rosemary in high‑proof food‑grade alcohol and filtering, though it won’t be standardized.
Is calcium ascorbate bad for you?
No—at the small amounts used in foods it isn’t considered harmful and can provide vitamin C (and a little calcium). Very high supplemental intakes may cause stomach upset, and people prone to kidney stones or with iron overload should be cautious with high vitamin C.
What is calcium ascorbate made from?
It’s the calcium salt of ascorbic acid (vitamin C). Industrially, ascorbic acid is made by fermenting plant-derived glucose, then neutralized with a calcium source (e.g., calcium carbonate or hydroxide) to form calcium ascorbate.
Is calcium ascorbate safe?
Yes—it's approved in the EU, US, and Australia/New Zealand and is generally recognized as safe at normal food-use levels. Excessive supplemental doses may cause gastrointestinal upset.
Is calcium ascorbate synthetic?
Usually yes: it's produced via microbial fermentation of sugars followed by chemical neutralization with calcium, rather than being extracted directly from plants.
What is calcium ascorbate used for?
It’s used as an antioxidant to slow oxidation and browning, helping preserve flavor and color (e.g., in beverages, fresh-cut produce, and meats), and to fortify foods with vitamin C (and some calcium).