Methods for Extraction of Hops

Abstract: For beer production efforts arc made to use hops extracts which contain all constituents of genuine hops. Today the method of choice is the extraction with hypocritical CO2 . By means of this method a, resine fraction with a low hop oil content is obtaines, containing mainly bitter compounds and a fraction with a high hop oil content (mainly flavouring substances). Preparations for pharmaceutical purposes are produced by extraction with aqueous methanol or ethanol. CO2 extraction is recommended resulting in better standardized extracts for the production of pharmaceutical preparations.

Keyword(s): Hop

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