Abstract Hops are an essential raw material for beer production in the brewery. The hop constituents give the beer its bitter taste, additional aroma, and can make it more stable. As hops are a cost-intensive ingredient, the bitter substance yield plays a major role for breweries. Various approaches are available to increase hop utilization in brewhouses. They range from pre-isomerized hop products or catalysts, which are only utilized outside the German Beer Purity Law, to different procedures, as well as novel brewhouse and dosing equipment. Examples include changes in the mashing process, pre-isomerization systems, or fractional wort boiling.

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提高α-酸异构化率的可用性和技术机会：综述

摘要 啤酒花是啤酒厂生产啤酒必不可少的原料。啤酒花成分赋予啤酒苦味、额外香气，并使其更稳定。由于啤酒花是一种成本密集型原料，苦味物质的产量对啤酒厂起着重要作用。有多种方法可以提高啤酒厂的啤酒花利用率。它们的范围从仅在德国啤酒纯度法之外使用的预异构化啤酒花产品或催化剂，到不同的程序，以及新型啤酒厂和配料设备。例子包括糖化过程、预异构化系统或麦汁分馏的变化。