Methods of making and using purified kettle hop flavorants

US6716472B2 · kind B2 · utility

Assignee

• Miller Brewing Company · US

Inventors

• Henry Goldstein · Brookfield, US
• Patrick L. Ting · Brookfield, US
• William G. Schulze · Waukesha, US
• Aki A. Murakami · Mequon, US
• Lance T. Lusk · Milwaukee, US
• Velta D. Young · New Berlin, US

Key dates

• Filing date: Aug 4, 1999
• Grant date: Apr 6, 2004
• Expiry date: Aug 4, 2019

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C12C5/026
• WIPO field: Food chemistry
• WIPO sector: Chemistry

Abstract

The isolation and characterization of a group of odorless and non-volatile glycosides from extracted hops (hop solids which have been previously extracted with non-polar solvents) is disclosed. These glycosides are water soluble and consist of a group of aromatic compounds conjugated to mono-, di-, and trisaccharides. These glycosides are responsible for the formation of kettle hop flavor and taste through both chemical and biological transformations. When these glycosides are transformed, they yield an essence and flavorant which imparts a kettle hop flavor and taste when the essence and flavorant is added to an unhopped beer. These kettle hop flavor essences and flavorants provide economy, consistency, flexibility, quality, and convenience to the brewing process because only one unhopped wort is required to brew a stock of unhopped beer. The unhopped beer can then be dosed with the desired amount of kettle hop flavor essence and flavorant.