Propyl gallate-containing vitamin preparations

A process for producing finely divided, pulverulent vitamin formulations in which the vitamin essentially has a particle size of less than 0.7 μm, comprising the steps of

• a1) dissolving the vitamins in a volatile, water-miscible organic solvent or in a mixture of water and a water-miscible organic solvent at temperatures between 50° C. and 200° C., optionally under elevated pressure, within a period of less than 10 seconds,
• a2) rapidly mixing the solution obtained after a) with an aqueous or colloidally dispersed solution of a colloid at temperatures between 0° C. and 50° C., with precipitation of the vitamin in colloidally dispersed form,
• a3) converting the dispersion formed to a dry powder by removing the majority of solvent and then drying,
• or
• a2) dissolving the vitamins in a volatile, water-immiscible organic solvent at temperatures of 30 to 150° C., optionally under elevated pressure,
• b2) mixing the solution obtained after a) with an aqueous or colloidally dispersed solution of a colloid, forming an emulsion,
• c2) removing the organic solvent from the emulsion and converting the suspension/dispersion formed to a dry powder by removing the water and then drying,
• or
• a3) converting the vitamin to a liquid by heating above its melting point or dissolving it in an oil or incubating it at room temperature,
• b3) mixing the melt obtained after a3) with an aqueous or colloidally dispersed solution of a colloid, forming an emulsion,
• c3) converting the dispersion formed to a dry powder by removing the water and then drying, wherein the process is conducted in the presence of an effective amount of propyl gallate.