konjac, konjac gum, konjac glucomannate
Basic Information
| Field | Content |
|---|---|
| Chinese name | konjac, konjac gum, konjac glucomannate |
| English name | konjac, konjac gum, konjac glucomannate |
| INS/E number | INS 425 |
| Functional class | Carrier, Emulsifier, Gelling agent, Glazing agent, Humectant, Stabilizer, Thickener |
| Year adopted | 1985 |
| Approved by | European Union (EFSA) |
What is it?
Konjac (konjac glucomannan) is a natural water-soluble dietary-fibre polysaccharide extracted from konjac tuber; it swells with water to form gels, used as a thickener, gelling agent and fibre.
Source
Natural：魔芋（Amorphophallus konjac）块茎
Why is it used?
- Strongly absorbs water to form gels and viscous systems
- Acts as a low-calorie dietary fibre
- Improves water-holding and texture in noodles/meats
- Used in weight-management and low-GI foods
Common Foods
- Konjac noodles and jelly
- Noodle products
- Meat products
- Jellies and desserts
- Health foods
Safety
Concerns：
- 未充分膨化时吞咽有噎食风险
Usage Standard
China：GB 2760《食品安全国家标准 食品添加剂使用标准》；卫计委公告（魔芋粉可按规定使用）
International：
- EU Regulation 1333/2008 Annex II (E 425)
- FDA 21 CFR 172.620 (konjac flour, with labelling)
- Codex GSFA (INS 425)
- FSANZ Food Standards Code (425)
In a nutshell
Konjac glucomannan is a highly swelling natural fibre gelling agent, safe but must be fully hydrated before consumption.
Consumer Advice
Konjac gum (konjac glucomannan) is a natural dietary fiber extracted from konjac tubers. It is used as a thickener and gelling agent in konjac jelly, jelly cups, noodles and vegan foods; it absorbs water, forms a gel and increases fullness. It is plant-derived, safe at normal levels and may help bowel regularity. Important: jelly-type products made with konjac can easily block the throat if swallowed whole, so children and older adults in particular should chew thoroughly and never swallow them whole.
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.