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calcium sulfite ​

Basic Information ​

FieldContent
Chinese namecalcium sulfite
English namecalcium sulfite
INS/E numberINS 226
Functional classPreservative, Antioxidant
Year adopted1965
Approved byEuropean Union (EFSA)

What is it? ​

Calcium sulfite is the calcium salt of sulfur dioxide, used as a preservative, antioxidant and bleaching agent, and may serve as a processing aid.

Source ​

Industrial:二氧化硫气体与氢氧化钙悬液中和反应制得

Why is it used? ​

  • Inhibits microbial growth
  • Prevents oxidative browning and discolouration
  • Acts as a bleaching agent in processing
  • Serves as a processing aid in some products

Common Foods ​

  • Dried fruits
  • Candied fruits
  • Pickled vegetables
  • Wine
  • Some cereal products

Safety ​

ADI (Acceptable Daily Intake):0-0.7 mg/kg bw (以 SO₂ 计)

Concerns:

  • 哮喘及敏感者可能过敏
  • 破坏硫胺素(维生素B1)

Usage Standard ​

China:GB 2760《食品安全国家标准 食品添加剂使用标准》

International:

  • EU Regulation 1333/2008 Annex II/III (E 226)
  • FDA 21 CFR 182.3221 (Calcium sulfite, GRAS)
  • Codex GSFA (INS 226)
  • Australia New Zealand Food Standards Code (Calcium sulfite)

In a nutshell ​

Calcium sulfite is a calcium sulfite preservative providing antimicrobial, antioxidant and bleaching effects.

Consumer Advice ​

Calcium sulfite is a sulphite preservative and antioxidant used in dried fruit, candied fruit and wine to prevent browning and spoilage; it works by releasing sulfur dioxide. It is safe for the vast majority of people, but sulphites are a legally declared allergen, so asthmatics and sensitive individuals should avoid them. Residual levels are strictly limited worldwide, so compliant products are not a concern.

Dietary Restrictions ​

  • Vegan: ✅
  • Halal: ✅
  • Kosher: ✅

Allergens ​

⚠️ Contains allergens

Disclaimer ​

The information provided here is for discussion and educational purposes only. It is not medical advice or an evaluation/rating of any product or ingredient. This information may not apply to you; before using or taking any action, you should contact the manufacturer, vendor, medical, dietary, fitness, or other professionals. If you use any information provided here, you do so at your own risk.