Safety and Regulatory Considerations

5. Pharmaceuticals In the pharmaceutical sector, sodium metabisulfite is used as a reducing agent and preservative. It plays a crucial role in formulations that require stability against oxidative degradation.

Late last year the maker of Orville Redenbacher's popcorn was sued for putting mixed tocopherols in its Naturals line of microwave popcorn, which claims on the front of the package to have Only Real Ingredients.

One of the primary arguments against high levels of preservatives is their potential link to health problems. Studies have shown that some synthetic preservatives can pose risks, especially when consumed in large quantities. For instance, preservatives like sodium nitrite and certain artificial colors have raised concerns regarding their carcinogenic properties. This connection has fueled public fears, prompting consumers to lean towards organic and preservative-free options, often at a higher price point.

Another potential concern is the source of E392. While tocopherols can be derived from various vegetable oils, the quality of these oils can vary. Some may be sourced from genetically modified organisms (GMOs), which is a concern for those preferring non-GMO products. This underscores the importance of purchasing products from reputable brands that prioritize transparency in their ingredient sourcing.

E435 is a non-ionic surfactant and emulsifier that possesses excellent emulsifying properties. It is derived from the esterification of sorbitol with stearic acid, followed by ethoxylation, which introduces ethylene oxide into the molecule. This process gives E435 its unique characteristics, such as hydrophilicity and lipophilicity, allowing it to bridge the gap between water and oil phases. The number 20 in its name signifies the average number of ethylene oxide units added, which enhances its emulsifying capacity.

Carrageenan is extracted from several species of red algae, primarily Chondrus crispus (Irish moss) and Eucheuma cottonii. The extraction process involves boiling the seaweed, followed by filtration and drying to obtain a fine powder. There are three main types of carrageenan kappa, iota, and lambda. Each type has unique gelling properties and is used for different purposes. Kappa carrageenan forms a strong gel in the presence of potassium ions, making it ideal for dairy products. Iota carrageenan, on the other hand, creates softer gels and is typically used in puddings and sauces. Lambda carrageenan does not gel but is an excellent thickening agent, often used in salad dressings and sauces.

Sucralose, known as E955, is a popular option among keto dieters. This sweetener is derived from sugar but is modified to be calorie-free and does not affect blood glucose levels. Sucralose is about 600 times sweeter than sugar, meaning that even trace amounts can provide substantial sweetness. One of the key advantages of sucralose is its stability; it remains sweet even at high temperatures, making it suitable for baking. This quality allows keto dieters to indulge in homemade desserts without compromising their dietary goals. Moreover, sucralose does not have a significant aftertaste, which can be a concern with some other artificial sweeteners.