E391 – Phytic acid
AntioxidantsDescription
Myo-inositol hexakisphosphate
Notes
Phytic acid is a natural compound found abundantly in seeds, nuts, grains, and legumes, where it serves as the plant's way of storing phosphorus. It's essentially nature's own mineral storage system - when you eat foods like wheat bran, rice bran, or sesame seeds, you're consuming phytic acid. The compound can be extracted from these plant sources, particularly from rice bran or wheat bran, through water extraction processes that don't require harsh chemicals. In food production, phytic acid works as an antioxidant and metal chelator, which means it binds to metal ions that could otherwise cause foods to spoil or change color. You'll find it used in oils, canned foods, and processed products where it helps prevent rancidity and maintains freshness. It's particularly valuable in preserving the quality of vegetable oils and preventing the metallic taste that can develop in canned goods. This additive is completely natural and plant-derived, making it suitable for vegetarian, vegan, and all religious dietary requirements. Interestingly, phytic acid has been studied for its potential health benefits, though it can also bind to minerals in your digestive system, which is why some people refer to it as an "anti-nutrient." However, at the levels used as a food additive, this effect is minimal and the compound is considered safe by food safety authorities worldwide.