Comparing E330 - Citric acid vs E170I - Calcium carbonate
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Found in 95,503 products
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Interest over time for 2 keywords in U.S. during the last 10 years.
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Popular questions
Is citric acid bad for you?
At typical food levels, citric acid (E330) is considered safe by major regulators (GRAS; EFSA/JECFA). Concentrated or frequent acidic exposure can irritate the mouth/stomach or contribute to tooth enamel erosion.
Where does the citric acid cycle occur?
In eukaryotic cells it occurs in the mitochondrial matrix; in bacteria it occurs in the cytosol.
What does citric acid do to your body?
It is a normal intermediate in energy metabolism and is readily metabolized to carbon dioxide and water. Citrate can bind minerals, which may enhance absorption of some and help prevent certain kidney stones by increasing urinary citrate.
Where does citric acid come from?
It occurs naturally in citrus fruits, but most food-grade citric acid is produced by fermenting sugars (e.g., from corn, beet, or cane) with Aspergillus niger.
How is citric acid made?
Industrially, sugars are fermented with Aspergillus niger to produce citric acid, then it is recovered and purified—often by precipitating calcium citrate and converting it back with sulfuric acid or via ion-exchange/crystallization.
What is chalk made of?
Traditional chalk is mostly calcium carbonate (CaCO3), a naturally occurring mineral; some modern blackboard “chalk” sticks may instead use calcium sulfate (gypsum).
What is chalk paint?
It’s a matte decorative paint that uses calcium carbonate as a white pigment/filler to create a chalky, velvety finish with good coverage and adhesion.
How to make chalk paint?
Stir calcium carbonate powder into a little water to make a slurry, then mix it into latex/acrylic paint—about 2–3 tablespoons calcium carbonate per 1 cup of paint—adjusting to reach the desired texture and coverage.
Can you eat chalk?
Food‑grade calcium carbonate (E170i) used in foods and supplements is considered safe at permitted levels, but eating non‑food‑grade chalk sticks isn’t advised and excessive intake can cause constipation or high‑calcium effects.
What is calcium carbonate used for?
In foods, E170i is used mainly as a white colorant and stabilizer and as a source of calcium; beyond food, it’s common in antacids and as a filler/pigment in tablets, paints, paper, and plastics.