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potassium ascorbate ​

Basic Information ​

FieldContent
Chinese namepotassium ascorbate
English namepotassium ascorbate
INS/E numberINS 303
Functional classAntioxidant
Year adopted1958
Approved byAustralia/New Zealand (FSANZ)

What is it? ​

Potassium ascorbate is the potassium salt of ascorbic acid, used as an antioxidant and colour stabiliser and as a low-sodium alternative.

Source ​

Industrial：抗坏血酸与碳酸钾（或氢氧化钾）中和反应制得抗坏血酸钾

Why is it used? ​

  • Antioxidant preventing oxidation and browning
  • Inhibits enzymatic browning
  • Suitable for low-sodium formulations
  • Suitable for liquid and high-moisture foods

Common Foods ​

  • Beverages and fruit juices
  • Canned fruits
  • Meat products (colour fix)
  • Dairy products
  • Sauces

Safety ​

ADI (Acceptable Daily Intake)：not limited (维生素C)

Concerns：

  • 肾功能不全者需控制钾摄入

Usage Standard ​

China：GB 2760《食品安全国家标准 食品添加剂使用标准》；GB 14880 营养强化剂

International：

  • EU Regulation 1333/2008 Annex II (E 303)
  • FDA 21 CFR 182.3625 (Potassium ascorbate, GRAS)
  • Codex GSFA (INS 303)
  • Australia New Zealand Food Standards Code (Potassium ascorbate)
  • JECFA Monograph (ADI not specified)

In a nutshell ​

Potassium ascorbate is the potassium salt of vitamin C, used as antioxidant and colour stabiliser and as a low-sodium option, highly safe.

Consumer Advice ​

Potassium ascorbate is the potassium salt of vitamin C, used as an antioxidant and nutrient fortifier to prevent oxidation and supply potassium and vitamin C. It is safe at authorised levels. People with kidney problems or on potassium-restricted diets should count the potassium from additives towards their daily allowance.

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.