METHOD FOR PRODUCTION OF EDIBLE WATER-IN-OIL EMULSION

摘要

The present invention provides a method for production of water-in-oil emulsions (in particular low-fat water-in-oil emulsions (<50% oil)), without the requirement of making a premix of the emulsion, and without the requirement to heat an entire premix, and wherein the emulsion can be made in a single process step. It is especially an object of the present invention to produce low-fat water-in-oil emulsions (<50% oil) in a single step method. In this method a distributive and dispersive mixing apparatus of the Controlled Deformation Dynamic Mixer type is used to create a water-in-oil emulsion, and wherein the mixer is suitable for inducing extensional flow in a liquid composition, and wherein the mixer comprises closely spaced relatively moveable confronting surfaces at least one having a series of cavities therein in which the cavities on each surface are arranged such that, in use, the cross-sectional area for flow of the liquid successively increases and decreases by a factor of at least 5 through the apparatus.