A liquid nutritional andor refreshing preparation is described to which an emulsion is added containing oils with polyunsaturated fatty acids and remedial substances in a water-based drink, in such a manner that the drink does not turn rancid within the storage time of the water-based phase, a method for its production and its application. The elements may be light emitting diodes. The first and second index TRIE structure respectively store index information to specify the sub character strings stored in the first and second dictionary TRIE structures.