Patent ID: 9353341
Filing Date: 2016-05-31
CPC Classification: C12C

Claim Text:
1. A process for forming a stable, high solids content, partially aqueous, single phase composition containing 26 to 95 weight percent solids, including rho-iso-α-acids, which comprises the steps of: (A) preparing a hop extract by extraction with an organic solvent or carbon dioxide; (B) preparing from said hop extract a substantially pure mixture of rho-iso-α-acids in their free-acid, resinous state; (C) heating said mixture of rho-iso-α-acids from step (B) to fluid state; (D) adding beta-acids and hop oil fractions to the fluidized mixture of rho-iso-α-acids of step (C) while maintaining the mixture in an agitated and fluid state; (E) adding an aqueous alkali hydroxide concentrated solution to the fluidized mixture of step (D) to obtain a mixture comprising at least 20 weight percent rho-iso-α-acids in their alkaline salt form; and (F) cooling the mixture of step (E) whereby to form a stable mixture comprising alkaline salts of rho-iso-α-acids, beta-acids, and hop oil.