The industrial applications of formic acid are extensive. It is used as a preservative and antibacterial agent in livestock feed, ensuring that the nutrients are retained during storage, thus promoting better animal health and growth. In the textile industry, formic acid serves as a dyeing and tanning agent, enhancing the quality and durability of fabrics.
The safety of E420 has been assessed by numerous food safety organizations, including the European Food Safety Authority (EFSA) and the U.S. Food and Drug Administration (FDA). Both agencies have classified sorbitol and mannitol as safe for consumption when used in appropriate amounts. However, like many food additives, excessive intake can lead to gastrointestinal discomfort, including bloating, gas, and diarrhea, particularly in individuals with sensitivities to sugar alcohols.