Abstract: A controlled-release composition for a biologically active material, characterized in that it comprises a mixture of: a) monocaproin, optionally in admixture with moncaprylin and/or monocaprin, and b) a polar liquid selected from the group consisting of such polar liquids which are capable of forming an L2 phase with a), and c) a biologically active material dissolved or dispersed in said mixture of a) and b), a) being present in the composition, based on the total weight of a)+b), in an amount of from the lower limit where the mixture of a) and b) forms a reversed micellar (L2) structure and up to 100% by weight of a), with the further proviso that said mixture of a) and b) is essentially within that specific domain of the L2 structure, in a phase diagram, where said L2 structure will change to a normal micellar (L1) structure if contacted with an external polar liquid. Said composition is preferably used as a medial composition.

Abstract: A biologically active composition containing (a) a diacyl glycerol, (b) a phospholipid and, optionally, (c) a polar liquid in such proportions that they together form an L2-phase or a cubic liquid crystalline phase, in which a biologically active material is dissolved or dispersed. A method for preparing the composition by mixing (a), (b) and, optionally, (c) for forming an L2-phase or a cubic liquid crystalline phase, the biologically active material being added before, during or after the formation of said phase. Use of the L2-phase or the cubic liquid crystalline phase for encapsulating a biologically active material for obtaining a preparation is provided, which yields a controlled release of the biologically active material.

Abstract: A method and product for preparing a controlled-release composition are provided. The method comprises formation of a mixture containing at least one amphiphilic substance capable of forming a liquid crystalline phase, in contact with a liquid selected from the group consisting of water, glycerol, ethylene glycol, propylene glycol and mixtures thereof. The method includes a step of providing in such mixture a bioactive material.

Abstract: A cleaning machine operating with granules having a pump for ejecting liquid optionally with or without granules which are heavier than the liquid, through nozzles against the goods to be cleaned in a treatment space (10) connected to the suction side of the pump via a bottom outlet (11). A granule valve having a socket (38) open at each en thereof is associated with the bottom outlet, said socket being guided for vertical displacement between the upper position with an opening at the lower end of the socket for drawing liquid with granules entrained therein by the pump from the treatment space at a lower level, and a lower position with the opening at the lower ned of the socket closed for drawing liquid only by the pump from a higher level at the upper end of the socket.