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  • Food additives play a crucial role in modern food production, enhancing the flavor, texture, and shelf life of various products. Among these additives, E451i, also known as disodium phosphate, is a common ingredient that often goes unnoticed by consumers. Understanding its purpose, safety, and effects can provide valuable insights into the food we consume daily.


  • Sodium or calcium propionate — Most commonly used to prevent mold in baked goods and long regarded as safe even at relatively high levels, though a recent Harvard study linked propionate to increased risk of obesity and diabetes. McDonald's removed propionate from its buns in 2018.

  • Sorbates inhibit microbial growth primarily by affecting the permeability of microbial cell membranes and altering the intracellular pH. When sorbates are present in food products, they can penetrate the cells of bacteria, yeast, and molds, leading to cell death or stunted growth. This is particularly useful in foods that are more prone to spoilage, such as dairy products, baked goods, and fruit preparations.


  • The chemical structure of sodium benzoate includes a carboxylate group (-COO-) attached to a benzene ring. This structure allows it to effectively disrupt microbial cellular processes. When used in acidic environments, such as in many fruit juices or soft drinks, sodium benzoate converts to benzoic acid, which is the active form that provides antimicrobial properties. The effectiveness of sodium benzoate is pH-dependent, with optimal activity occurring at a pH of 4.5 or lower.


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  • E105 is primarily used as a food coloring agent, imparting a vibrant yellow hue to various products. It can be found in a variety of processed foods including, but not limited to, dairy products, baked goods, confectionery items, and beverages. Additionally, due to its riboflavin content, it is commonly added to baked goods to enrich them with essential nutrients, promoting healthier consumer choices.