摘要：

1. In a process which includes a step (1) of forming an aqueous emulsion containing dispersed therein a fat-soluble vitamin-active material and a protective colloid, and a step (2) of converting said emulsion to a dry particulate form containing the non-aqueous constituents of said emulsion: the improvement which comprises effecting said step (2) by introducing droplets of said emulsion into a mass of starchy powder pro-dried to a moisture content of not more than about 8 per cent, keeping said droplets in said powder separated from each other until a particulate form has been established in the individual droplets by loss of a portion of their contained water to the starchy powder, and then completing the drying of the individual partially dry vitamin-activc particles so formed; the individual droplets ofsaid emulsion containing such amount of non-aqueous constituents that upon complete drying the vitamin-active particles formed from the respective droplets are substantially entirely in the range from about coarser than 150 mesh to about finer than 10 mesh; the grains of said starchy powder being substantially entirely finer than 150 mesh.

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