| 摘要 |
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: a) preparing an aqueous dispersion containing essen- tially these fat-soluble active substances, film- forming colloids arid reducing sugars, b) converting this dispersion into dry vitamin and/or carotenoid products in powder form and c) thermally curing the powder at from 60 to 180.degree.C, wherein gelatin in combination with one or more organic, amino compounds which axe free or bonded in the manner of a salt and which contain a basic primary amino group and, in addition, either another amino group, a hydroxyl group, an alkoxy group or a carboxyl group, and/or in combination with sufficient basic alkali metal or alkaline earth metal compound for the dispersion to have a pH of from 7.5 to 10, is used as film-forming colloid, and the dry powders obtainable via this process are described.
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