Food Additives Encyclopedia

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tert-butylhydroquinone ​

Basic Information ​

FieldContent
Chinese nametert-butylhydroquinone
English nametert-butylhydroquinone
INS/E numberINS 319
Functional classAntioxidant
Year adopted1987
Approved byAustralia/New Zealand (FSANZ)

What is it? ​

Tertiary butylhydroquinone (TBHQ) is a lipid-soluble food antioxidant synthesised by alkylating hydroquinone with tert-butanol. It is highly effective, especially against oxidation of frying oils.

Source ​

Industrial：烷基化反应、结晶精制得到 TBHQ

Why is it used? ​

  • Strongly inhibits oxidation of oils and frying oils
  • Extends shelf life of fried and fatty foods
  • Synergises with BHA, BHT, PG
  • Used in vegetable oils, instant noodles, extruded snacks

Common Foods ​

  • Edible vegetable oils
  • Fried instant foods
  • Extruded snacks
  • Nuts and seeds
  • Meat products
  • Bakery

Safety ​

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

Concerns：

  • 避免与铁等金属离子接触
  • 按规定限量使用，勿超量

Usage Standard ​

China：GB 2760《食品安全国家标准 食品添加剂使用标准》

International：

  • FDA 21 CFR 172.185
  • Codex GSFA (INS 319)
  • FSANZ Food Standards Code (319)

In a nutshell ​

TBHQ is a potent synthetic fat-soluble antioxidant safe within limits for oils and frying foods.

Consumer Advice ​

TBHQ (tert-butylhydroquinone) is a synthetic antioxidant used mainly in cooking oils, fried foods, instant noodles and biscuits to prevent oxidation and rancidity. It is permitted with strict limits in many countries, but its safety has been debated based on animal studies, and a few countries such as Japan restrict it. It is wise to moderate intake of fried and highly processed foods and to favour a less oily diet.

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.