calcium oxide
Basic Information
| Field | Content |
|---|---|
| Chinese name | 氧化钙(deepl翻译) |
| English name | calcium oxide |
| INS/E number | INS 529 |
| Functional class | Acidity regulator, Flour treatment agent |
| Year adopted | 1999 |
| Approved by | Australia/New Zealand (FSANZ), European Union (EFSA) |
What is it?
calcium oxide (INS 529) is a Acidity regulator, Flour treatment agent food additive. Used to regulate or maintain acidity (pH), affecting flavour, colour and stability.Used to improve baking quality of flour, e.g. bleaching and strengthening gluten.
Source
Natural：Mostly organic acids naturally present in foods (e.g. citric, malic, lactic acid).E.g. ascorbic acid (vitamin C) as an improver.
Industrial：Their salts (e.g. sodium citrate, phosphates) are made by neutralisation.Includes synthetic improvers such as benzoyl peroxide, azodicarbonamide.
Why is it used?
- Adjust pH
- Improve flavour
- Enhance preservation and colour stability
- Improve baking performance
- Bleach flour
- Strengthen gluten network
Common Foods
- Beverages
- Confectionery
- Dairy
- Canned foods
- Bakery
- Wheat flour
- Bakery ingredients
Safety
Mostly organic acids naturally present in foods; safe within permitted use.All evaluated with restricted scope and residues; some are banned in certain regions.
Metabolism：Metabolic pathways vary by substance; generally the material is metabolised or excreted normally.
Concerns：
- Use within permitted levels
- Sensitive individuals should check the ingredient list
Usage Standard
China：依据 GB 2760《食品安全国家标准 食品添加剂使用标准》确定使用范围与最大使用量；具体限值随食品类别而异。
International：
- China GB 2760 National Food Safety Standard for Uses of Food Additives：https://www.cfsa.net.cn/
- Codex GSFA General Standard for Food Additives：https://www.fao.org/food-safety/codex-alimentarius/en/
- FAO/WHO JECFA (Joint Expert Committee on Food Additives)：https://www.fao.org/food-safety/scientific-advice/jecfa/en/
- US FDA Substances Added to Food：https://www.fda.gov/food/food-additives-petitions/substances-added-food-previously-food-additive-status-list
- EU EFSA Food Additives：https://www.efsa.europa.eu/en/topics/topic/food-additives
In a nutshell
calcium oxide is a Acidity regulator, Flour treatment agent, safe for use in food production within permitted limits.
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.