phytic acid
Basic Information
| Field | Content |
|---|---|
| Chinese name | phytic acid |
| English name | phytic acid |
| INS/E number | INS 391 |
| Functional class | Preservative |
| Year adopted | 1966 |
| Approved by | To be added. |
What is it?
Phytic acid (inositol hexaphosphoric acid) and its sodium salt occur naturally in plant seeds; they are strong metal chelators used as antioxidants, colour stabilisers and water-treatment aids.
Source
Natural：谷类、油料作物等植物种子（如米糠、麦麸）
Why is it used?
- Chelates metal ions to prevent oxidative discolouration
- Stabilises colour of canned and pickled foods
- Inhibits polyphenol-oxidase browning
- Acts as a water-treatment agent removing Ca/Mg ions
Common Foods
- Canned foods
- Pickled vegetables
- Edible oils
- Beverages
- Soy products
Safety
Concerns：
- 可能降低铁、锌、钙等矿物质的吸收
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 (E 391)
- FDA 21 CFR 184.1062
- Codex GSFA (INS 391)
- FSANZ Food Standards Code (391)
In a nutshell
Phytic acid is a naturally occurring strong metal chelator that protects colour and prevents oxidation, though large intakes may impair mineral absorption.
Consumer Advice
Phytic acid (inositol hexaphosphate) occurs naturally in plant seeds such as grains, legumes and nuts. As a food additive it works mainly as an antioxidant: it binds trace metals to slow fat oxidation and to prevent browning or blackening of fruit, vegetables and shrimp. It is plant-derived and safe at normal use levels. Although very high amounts of phytate in the diet can reduce absorption of some minerals, the small amounts added to food are not a concern.
Dietary Restrictions
- Vegan: ✅
- Halal: ✅
- Kosher: ✅
Allergens
✅ Free from common 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.