potassium bisulfite, potassium hydrogen sulfite
Basic Information
| Field | Content |
|---|---|
| Chinese name | potassium bisulfite, potassium hydrogen sulfite |
| English name | potassium bisulfite, potassium hydrogen sulfite |
| INS/E number | INS 228 |
| Functional class | Preservative, Antioxidant |
| Year adopted | 1965 |
| Approved by | Australia/New Zealand (FSANZ), European Union (EFSA) |
What is it?
Potassium bisulfite (potassium hydrogen sulfite) is the acid potassium salt of sulfur dioxide; it releases sulfite in solution and is used as a preservative and antioxidant.
Source
Industrial：二氧化硫气体与氢氧化钾按小于等摩尔比反应制得
Why is it used?
- Inhibits microbial growth
- Prevents oxidative browning and discolouration
- Used in wine as antioxidant and antimicrobial
- Maintains colour of dried fruits and fruit/vegetable products
Common Foods
- Wine
- Dried fruits
- Candied fruits
- Pickled vegetables
- Jams
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 228)
- FDA 21 CFR 182.3639 (Potassium bisulfite, GRAS)
- Codex GSFA (INS 228)
- Australia New Zealand Food Standards Code (Potassium bisulfite)
In a nutshell
Potassium bisulfite is an acid potassium sulfite preservative commonly used to protect colour and freshness in wine.
Consumer Advice
Potassium hydrogen sulfite (also called potassium bisulfite) is a sulphite preservative and antioxidant used in winemaking, dried fruit and pickled foods to prevent oxidative browning and microbial contamination by releasing sulfur dioxide. It is safe for most people, but sulphites are a label-required allergen, so asthmatics and other sensitive individuals should avoid them. Use within legal limits is safe; choose compliant products.
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.