Site icon Brookston Beer Bulletin

Patent No. 2290089A2: Barley For Production Of Flavor-Stable Beverage


Today in 2011, US Patent 2290089 A2 was issued, an invention of Søren Knudsen, Lene Mølskov Bech, Klaus Breddam, Finn Lok, Ole Olsen, and Birgitte Skadhauge, assigned to Carlsberg A/S, for their “Barley for Production of Flavor-Stable Beverage.” Here’s the Abstract:

According to the invention, there is provided null-LOX-1 barley and plant products produced thereof, such as malt manufactured by using barley kernels defective in synthesis of the fatty acid-converting enzyme lipoxygenase-1. Said enzyme accounts for the principal activity related to conversion of linoleic acid into 9-hydroperoxy octadecadienoic acid, a lipoxygenase pathway metabolite, which – through further enzymatic or spontaneous reactions – may lead to the appearance of trans-2-nonenal. The invention enables brewers to produce a beer devoid of detectable trans-2-nonenal-specific off-flavors, even after prolonged storage of the beverage.


Exit mobile version