Abstract: A process for obtaining 3′-epilutein, by epimerization of a lutein-containing extract with an aqueous solution of a strong organic acid which is slowly added under agitation at room temperature, in the presence of an organic aprotic media, to obtain 3′-epilutein(crystals) in a solution which is neutralized with an alkali and extracting the 3′-epilutein from said solution by means of an organic media, then washing and drying the crystals and purifying them by chromatography by means of a chromatography column.

Abstract: Spontaneously dispersible concentrates capable of forming ultramicroemulsions are described. The concentrates include esters of formula (I) and (II): wherein (a) R1, R3, R4, and R5 each independently represents a C6-22 alkyl, a C6-22 alkenyl or a C6-22 alkapolyene and R2 is glucose:(1,2); (b) R2, R3, R4, and R5 each independently represents a C6-22 alkyl, a C6-22 alkenyl or a C6-22 alkapolyene and R1 is glucose:(1,3); (c) R2, R3, R4, and R5 each independently represents a C6-22 alkyl, a C6-22 alkenyl or a C6-22 alkapolyene and R1 is rhamnose:(1,4); or (d) R2, R3, R4, and R5 each independently represents a C6-22 alkyl, a C6-22 alkenyl or a C6-22 alkapolyene and R1 is rutinose:(1,5); wherein (a) R1, R2, and R4 each independently represents a C6-22 alkyl, a C6-22 alkenyl or a C6-22 alkapolyene and R3 is rhamnose:(11,7); or (b) R2 and R4 each independently represents a C6-22 alkyl, a C6-22 alkenyl or a C6-22 alkapolyene, R1 is methyl, and R3 is rutinose:(11,8).

Abstract: New biotenside esters and phosphatides formed with Vitamin-D and Vitamin-E compounds possessing a pronounced antitumor activity, processes for their production as well as for the preparation of concentrates and pharmaceutical compositions containing these new esters and phosphatides, and their use for treating tumors are described.

Abstract: A process for increasing the apparent density of spray-dried detergents comprising spraying the spray-dried detergents with both a liquid nonionic surfactant and an aqueous solution of an alkali metal silicate either simultaneously or in successive steps, and mixing the resultant mixture.