Acesulfame (E 950) - Sweetener Simply Explained
Acesulfame is a calorie-free artificial sweetener used in foods and beverages as a sugar substitute. It is approximately 200 times sweeter than table sugar.
Things worth knowing about "Acesulfame"
Acesulfame is a calorie-free artificial sweetener used in foods and beverages as a sugar substitute. It is approximately 200 times sweeter than table sugar.
What is Acesulfame?
Acesulfame (also known as Acesulfame-K or Acesulfame Potassium) is a synthetically produced sweetener widely used in the food industry. It is labeled with the food additive code E 950 and belongs to the group of non-nutritive sweeteners, meaning it provides virtually no calories to the body. Acesulfame is approximately 130 to 200 times sweeter than regular table sugar (sucrose).
Production and Chemical Properties
Acesulfame was discovered in 1967 by German chemist Karl Clauss and was approved for use in food products in various countries during the 1980s. Chemically, it is the potassium salt of 6-methyl-1,2,3-oxathiazine-4(3H)-one-2,2-dioxide. The compound is water-stable and heat-resistant, making it suitable for baking and cooking. Unlike some other sweeteners, acesulfame remains stable at high temperatures without losing its sweetening properties.
Occurrence and Uses
Acesulfame-K is found in a wide variety of products, including:
- Diet and light soft drinks
- Sugar-free chewing gums and candies
- Baked goods and sweets for diabetics
- Yogurts and dairy products with reduced sugar content
- Table-top sweeteners
- Mouthwashes and toothpastes
- Pharmaceuticals and dietary supplements (as a carrier or excipient)
Acesulfame-K is frequently combined with other sweeteners such as aspartame or sucralose to achieve a rounder, more sugar-like taste and to reduce a slightly bitter aftertaste.
Metabolism in the Body
Acesulfame-K is not metabolized in the human body, meaning it is not broken down or converted into energy. It is excreted almost completely unchanged by the kidneys via urine. For this reason, it has no effect on blood glucose levels and is considered suitable for individuals with diabetes mellitus.
Safety and Regulatory Approval
Acesulfame-K has been classified as safe and approved by numerous international regulatory authorities, including:
- The European Food Safety Authority (EFSA)
- The U.S. Food and Drug Administration (FDA)
- The Joint FAO/WHO Expert Committee on Food Additives (JECFA)
The Acceptable Daily Intake (ADI) for acesulfame-K according to EFSA is 9 mg per kilogram of body weight per day. This value indicates the amount of a substance that a person can consume daily throughout their lifetime without a health risk.
Debated Health Aspects
Although acesulfame-K is classified as safe by regulatory authorities, there is ongoing scientific debate about its potential effects on the gut microbiota (microbiome) and glucose metabolism. Some animal studies have suggested possible changes in the gut microbiome, but the relevance for humans has not yet been conclusively determined. The majority of current scientific data continues to support the safety of acesulfame-K when consumed within the ADI limit.
Acesulfame and Dental Health
Since acesulfame-K is not fermented by oral bacteria, it does not lead to acid formation in the mouth and is therefore considered tooth-friendly. It does not promote tooth decay and can therefore be used as a sugar substitute in tooth-friendly products.
References
- European Food Safety Authority (EFSA): Scientific Opinion on the re-evaluation of acesulfame K (E 950) as a food additive. EFSA Journal, 2000.
- World Health Organization (WHO) / FAO: Evaluation of certain food additives. JECFA Monographs on Acesulfame potassium. Geneva, 2019.
- Tandel, K.R.: Sugar substitutes: Health controversy over perceived benefits. Journal of Pharmacology and Pharmacotherapeutics, 2011;2(4):236-243.
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