Sweeteners are the most discussed among the food additives. Those, used as alternatives to sucrose, are generally referred to as ''alternative sweeteners''. The first registered sweetener was honey, but as time pasts the common sugar took its place. Artificial sweeteners came into use, because diabetes and obesity rate was increased due to use of common sugar. The first used artificial sweetener was saccharin. Aspartame and cyclamate were used following the saccharin.
They are produced to be used instead of sugar, have the same taste as sugar, are not considered as harmful to health, have low calorie and/or without calories. Increasing with the prevalence of obesity, individuals wishing to reduce energy intake have talented particularly to energy-free sweeteners and low-calorie products. The products made with sweeteners are equivalent to the product made with sugar being preferred by producers and consumers. During the past two decades, worldwide low-calorie food consumption has considerably increased, thus leading to an increase in health concerns associated with high intake of synthetic sweeteners. In this book safety of aspartame was reviewed.
Table of Contents
1. INTRODUCTION
2. ASPARTAME
2.1 History
2.2 Chemical Properties
2.3 Aspartame Usage Rules and Safety Assessment
2.4 Biochemistry and Metabolism
2.5 Toxicological Profile
2.5.1 Acute Toxicity
2.5.2 Sub-Chronic Toxicity
2.5.3 Chronic Toxicity
2.5.4 Genotoxicity
2.6 Other Studies Related to Aspartame
3. CONCLUSION
Research Objectives and Key Topics
This work aims to provide a comprehensive scientific evaluation of the safety of aspartame, exploring its metabolic pathways, toxicological profile, and findings from epidemiological and animal studies to address ongoing health concerns and regulatory debates regarding its consumption.
- Historical development and widespread industrial usage of aspartame.
- Biochemical pathways and metabolic breakdown products in the human body.
- Comprehensive analysis of acute, sub-chronic, and chronic toxicity profiles.
- Evaluation of potential links between aspartame consumption and long-term health risks such as cancer.
- Assessment of regulatory safety guidelines and Acceptable Daily Intake (ADI) levels.
Excerpt from the Book
2.2 Chemical Properties
Aspartame (L-aspartic acid, L-phenylalanine methyl ester) is an artificial sweetener non-nourishing dipeptide which is not found naturally in foods and beverages. There are two forms of aspartame, an alpha and a beta form. The sweet one is only alpha, and when it doesn't specified, “aspartame” here will always refer to the alpha form (Magnuson et al., 2007). It is classified as a non-nutritive sweetener because of its intense sweetness and its ability to be used in very small quantities to sweeten the foods (FDA, 2007). Aspartame, by weight, provides the same calorie intake as sugar (i.e., 4 kcal/g), it can be added at almost 200 times lower levels and get the same sweetness, so providing a far lower net caloric intake. This feature has resulted in the use of aspartame as a low calorie or non-nutritive sweetener in foods and drinks worldwide (Magnuson et al., 2007).
Aspartame is not soluble in fats or oils, but it is slightly soluble in water and ethanol (Magnuson et al. 2007). It is not suitable for cooking or baking, because it is unstable at long-term high heat. But in dry form, it is very stable. It is also unstable in aqueous solutions which slowly return to diketopiperazine (DKP). This causes the sweet taste to be lost. The flavor of Aspartame is like sugar and it improves some tastes. The combinations of it with other intense sweeteners, e.g. saccharin and/or cyclamate, taste sweeter than expected from the sum of the individual sweeteners (Mortensen, 2006).Aspartame is used in cold beverage mixes, chewable multi-vitamins, breakfast cereals, chewing gum, puddings, carbonated drinks, iced drinks, yoghurt and in pharmacy. The European Food Safety Authority (EFSA) assessed the safety of aspartame and included in food additives with E951 code (SCF, 2002).
Chapter Summary
1. INTRODUCTION: Provides an overview of the role of artificial sweeteners as sucrose alternatives, highlighting the global shift towards low-calorie products due to the rising prevalence of obesity and diabetes.
2. ASPARTAME: Details the history, chemical properties, metabolic processes, and extensive toxicological research regarding the safety of aspartame in various biological models.
3. CONCLUSION: Summarizes the current understanding that aspartame consumption within the specified Acceptable Daily Intake (ADI) does not pose a health hazard to consumers based on current scientific evidence.
Keywords
Aspartame, Artificial Sweeteners, Food Additives, Phenylalanine, Methanol, Toxicity, Metabolism, Carcinogenicity, ADI, Food Safety, Public Health, Obesity, Metabolic Disorders, Genotoxicity, Toxicological Profile.
Frequently Asked Questions
What is the primary focus of this work?
The work provides a thorough examination of the safety profile of aspartame, acting as an artificial sweetener, and its impact on human health, considering both benefits and potential toxicological risks.
What are the central themes discussed in this document?
The central themes include the history of sweetener development, biochemical properties and metabolism of aspartame, toxicological findings in laboratory animals, and the controversy regarding cancer risks and neurotoxicity.
What is the primary goal of the research?
The primary goal is to synthesize existing scientific knowledge to clarify whether aspartame is safe for general consumption, specifically focusing on its potential for toxicity in both human and animal models.
Which scientific methods are primarily utilized in the studies mentioned?
The studies reviewed utilize diverse methods, including in vitro cell studies, in vivo animal experimentation (such as rats and monkeys), and human epidemiological observation studies.
What is covered in the main body of the text?
The main body covers detailed technical sections on chemical properties, the metabolic pathways of aspartate and phenylalanine, safety assessment guidelines, and an exhaustive review of acute to chronic toxicity studies.
Which keywords best characterize this work?
Key terms include aspartame, toxicity, metabolism, food safety, carcinogenicity, phenylketonuria (PKU), and artificial sweeteners.
How does phenylalanine affect individuals with PKU?
Individuals with phenylketonuria (PKU) lack the enzyme necessary to metabolize phenylalanine properly, leading to accumulation in tissues that can cause severe developmental and neurological issues, thus requiring strict dietary limitations.
What happens to aspartame when it is stored in liquid form?
Aspartame is unstable in aqueous solutions and tends to degrade over time into diketopiperazine (DKP), which results in a loss of sweetness and degradation of the sweetener.
Does aspartame have a proven link to cancer in humans?
Current epidemiological evidence does not show a consistent or definitive correlation between standard aspartame consumption and increased cancer risks in humans, though animal studies have yielded mixed and debated results.
Why is methanol produced during aspartame metabolism?
Methanol is released as one of the three main metabolites when aspartame is hydrolyzed in the gastrointestinal tract, contributing to the debate regarding the safety of its breakdown products.
- Quote paper
- Aslı Ucar (Author), Mustafa Özgür (Author), Serkan Yilmaz (Author), 2017, Safety of Aspartame, Munich, GRIN Verlag, https://www.grin.com/document/374590
