Carlton and United Breweries Limited

David George Lance

Raymond N Skinner

Robert Peter Hildebrand

Brian James Clarke

Alexander William White

A method for the solvent-free processing and/or handling of a complex organic mixture, characterized in that the mixture is coated on to an inert hydrophobic support prior to such processing or handling. Also included is a method for separating a two-phase system having a phase comprising a complex organic mixture and an aqueous phase by contact with an inert hydrophobic support. The invention is particularly concerned with the treatment of complex materials of a resinous nature, especially those of plant origin and, specifically, hop resins. The invention further includes a method for the selective extraction of hop resin components wherein a hop resin extract is coated onto an inert hydrophobic support, from which components of the resin can be selectively extracted.

Processing of hop resins and similar materials

A solid product for use in the flavoring of food or beverages which comprises a water-insoluble calcium, magnesium, nickel, manganese or zinc isohumolone complex and an alkali metal compound selected from sodium or potassium tripolyphosphate or a mixture of the disodium or dipotassium salt of ethylenediamine tetracetic acid with the tetrasodium or tetrapotassium salt of ethylenediaminetetracetic acid, the molar ratio of the alkali metal compound to the isohumulone present in the water-insoluble isohumulone complex being at least 0.8 to 1. The product can be immediately dissolved in water or an aqueous medium to produce a solution containing no significant amount of insoluble residues. The solution can be used, for example, as a bittering additive for beer.

Growing community of inventors

Melbourne, Australia

David George Lance