Abstract: Disclosed is an additive and an aqueous liquor for washing or cleaning comprising at least one lipase enzyme concentrate in a specified range plus at least one protease enzyme concentrate, also containing total proteins in a specified range, further containing at least one amine oxide as a first surfactant and optionally containing further selected surfactants. Further disclosed is a process for producing these products, some including the use of a highly suitable apparatus that may also be equipped for supplying the additive to an on-site washing and/or cleaning operation. Further disclosed is the use of the products in the context of performing a washing or cleaning step.

Abstract: Disclosed is a method for the preparation and supply of an enzyme-containing detergent formulation, the method comprising the steps of: a transferring from a plurality of feed sources (3a to 3f) the ingredients required for forming a batch of the detergent formulation into a mixing vessel (25), b mixing the ingredients to form the batch, c discharging the batch from the mixing vessel, d by pumping supplying at least a part of the batch to at least one treatment device (42), wherein at least one feed source is comprising an enzyme-containing concentrate, wherein the preparation is performed on-site with the treatment device, and wherein the amounts supplied of the batch and of the enzyme concentrate as part of the batch are determined by weight. Also disclosed is an apparatus (41) for on-site with the treatment devices (42) preparing and supplying the detergent formulation.