E384 – Isopropyl citrates
PreservativeDescription
Mixture of isopropyl and other esters of citric acid; colorless to light yellow liquid
Notes
Isopropyl citrates are made by combining citric acid with isopropyl alcohol through a chemical process called esterification. This creates a colorless to light yellow liquid that blends well with both water and oil. The citric acid used is typically produced through fermentation of sugars, while isopropyl alcohol is derived from petroleum or natural gas through industrial processes. This additive works as an antioxidant synergist, which means it doesn't prevent food spoilage on its own, but instead helps other antioxidants work more effectively. Think of it as a helper that makes the main antioxidants in food more powerful and longer-lasting. You'll find isopropyl citrates in processed foods that contain oils and fats, such as margarine, shortening, processed meats, and some packaged snacks, where preventing rancidity is important. Isopropyl citrates are synthetically produced and suitable for vegetarians and vegans since no animal products are involved in their manufacture. The additive is considered safe by food safety authorities and is used in very small quantities. While it contains alcohol chemically, the amounts used in food are so tiny that they pose no concerns for people avoiding alcohol for religious or health reasons - it's not the same as drinking alcohol.