International Numbering System (INS) for Food Additives: 410
Food additives Europe numbers: E172
Iron oxides and hydroxides (E 172) are a group of minerals used as coloring agents in some foods. They come in various colors depending on the specific compound:
- Yellow iron oxide (FeO(OH)•H2O)
- Red iron oxide (Fe2O3)
- Black iron oxide (FeO•Fe2O3)
- Brown iron oxide (a commercial blend)
Here's a breakdown of their use in food:
- Safety: Considered safe for consumption by regulatory bodies like EFSA (European Food Safety Authority).
- Function: Primarily coloring agents, adding a range of colors from yellow to black to food products.
- Regulation: Usage is generally limited and controlled. For instance, the US allows it only for sausage casings at a specific level.
- Current Use: While approved for use in some regions, its presence in food seems to be uncommon these days.