Abstract: Enzymes isolated from krill of the order Euphausiaceae are used to remove biological contaminants. Preferably, a mixture of enzymes including exo-and endopeptidase is isolated. The enzymes can be used in laundering or to clean or debride living tissue. Isolation may be carried out by homogenizing krill and extracting the enzymes with an aqueous medium. The enzymes may be further purified by gel chromatography. After lipids have been removed, the enzymes can be lyophilized for long time storage.

Abstract: Enzymes from animals belonging to the order Euphausiaaceae are used for cleaning. Preferably, an enzyme mixture containing exo-and endopeptidases from krill are used. Living tissue can be cleaned or debrided with the enzyme mixture, isolation of the enzymes may be carried out by homogenizing krill and extracting with an aqueous medium. Further purification can be by gel chromatography. Enzymes from which lipids have been extracted may be lyophilized for long time storage.

Abstract: A pharmaceutical composition containing an effective amount of an enzyme preparation which is capable of promoting decomposition of food containing meat and/or adipose tissue and is produced from aquatic animals selected from the group consisting of animals of the order Euphausiaceae and animals of the genus Mallotus, said composition being useful as a digestion promoter in gastrointestinal fluids.The invention comprises also a method for promoting degradation of food in gastrointestinal fluids by means of adding or administering said pharmaceutical composition.

Abstract: A carboxylic acid, its salts, esters and derivatives, in which the hydrogen atoms have been replaced, partly or entirely, by deuterium has an antimycotic effect, probably because the fungi cannot metabolize the deuteriated substance. The deuteriated substances can be used for treating living plants, seeds and wood against the attack of destructive fungi, and for curing pathogenic infections of fungi in humans and animals.