Basf Aktiengesellschaft

Horst Schumacher

Joachim U Schneider

Wolfgang Bewert

Paul Grafen

Udo Rheude

Hubert Tiefenbacher

Arie Kuipers

Gerhard Schwarz

Chiharu Fukamachi

Herbert Becker

Guenter Gaus

A process for preparing stable dry powders which are insoluble in hot water and which contain fat-soluble vitamins and/or carotenoids, which comprises the following steps:

Stable vitamin and/or carotenoid products in powder form, and the

Pulverulent products composed of a water-insoluble core substance and of a protective covering, are obtainable by

Pulverulent products composed of a water-insoluble core substance and of

A stable mixture of an oxidation-sensitive compound contains triglycerides, complexing agents and coating substances as well as the oxidation-sensitive compound.

Stable mixture containing oxidation-sensitive compounds, preparation

A process for pulverizing substances which are sensitive to oxidation, in particular oily substances, by dispersing oil-soluble substances, e.g. vitamins, carotinoids, pharmaceutically active compounds or aromas, in an aqueous solution of a film-forming colloid, which constitutes the continuous phase of the dispersion, with the addition of one or more substances from the group comprising the mono-, di- and polysaccharides, atomizing the dispersion, in a spray tower, in the presence of a spraying assistant and collecting the resulting particles in a fluidized bed, wherein, as the spraying auxiliary, a hydrophobic silica or a metal salt of a higher fatty acid is introduced above the fluidized bed and distributed uniformly in the spraying space, at a temperature at which the colloid of the atomized particles has not yet solidified, and the assistant-laden particles, colloid material of which essentially has not yet gelatinized, is collected in a fluidized bed, and dried therein in a conventional manner.

Production of dry powders of substances which are sensitive to oxidation

A vitamin E dry powder, which contains a protein colloid and a disaccharide as carriers, is prepared by dispersing a vitamin E ester in a residual liquor, low in alkaline earth metal ions and rich in lactose, from the production of lactose, in the presence of from 2 to 30% by weight, based on the solids content of the residual liquor, of a caseinate, and spray-drying the dispersion. The vitamin E dry powder thus prepared is stable, easy to dose and physiologically safe, so that it can be used for any desired purpose.

Growing community of inventors

Bobenheim, Germany

Horst Schumacher