Kvasny Prum. 2009; 55(2): 30-36 | DOI: 10.18832/kp2009004

The Brewing Value of Bohemian and Moravian Hops from the Harvest 2008.Peer-reviewed article

Alexandr MIKYŠKA
Výzkumný ústav pivovarský a sladařský, a. s., Pivovarský ústav Praha, Lípová 15, 120 44 Praha 2

Evaluation of α- and β-bitter acids content of hops in hops crop 2008 in Czech Republic was carried out. Sampling map concerned all three growing areas - Žatec, Úštěk and Tršice area. Saaz hop variety was growing on 88.8% of hop-garden area in CR, other important varieties were Sládek (4.5%) and Premiant (5.0%). Hops were analyzed according to EBC method 7.7 (HPLC), all results are expressed as % w/DM. Average value of bitter acids content of Saaz hops variety in Czech Republic was α = 3.7% (Žatec growing area 3.8%, Úštěk growing area 3.8%, Tršice growing area 3.3%), β = 4.6%. The value of α-bitter acids was higher in 0.8% compare to results of year 2007 and it was higher in 0.8% compare to 15 years average. The content of β-bitter acids was in 0.2% lower compare to 15 years average. Average values of bitter acids content of variety Sládek in Czech Republic were α = 6.6%, β = 6.1%. The value of α-bitter acids was in 0.2% higher compare to 5 years average. Average values of bitter acids content of variety Premiant was α = 10.2%, β = 4.8%. The value of α-bitter acids was in 1.4% higher compare to 5 years average.Evaluation of α- and β-bitter acids content of hops in hops crop 2008 in Czech Republic was carried out. Sampling map concerned all three growing areas - Žatec, Úštěk and Tršice area. Saaz hop variety was growing on 88.8% of hop-garden area in CR, other important varieties were Sládek (4.5%) and Premiant (5.0%). Hops were analyzed according to EBC method 7.7 (HPLC), all results are expressed as % w/DM. Average value of bitter acids content of Saaz hops variety in Czech Republic was α = 3.7% (Žatec growing area 3.8%, Úštěk growing area 3.8%, Tršice growing area 3.3%), β = 4.6%. The value of α-bitter acids was higher in 0.8% compare to results of year 2007 and it was higher in 0.8% compare to 15 years average. The content of β-bitter acids was in 0.2% lower compare to 15 years average. Average values of bitter acids content of variety Sládek in Czech Republic were α = 6.6%, β = 6.1%. The value of α-bitter acids was in 0.2% higher compare to 5 years average. Average values of bitter acids content of variety Premiant was α = 10.2%, β = 4.8%. The value of α-bitter acids was in 1.4% higher compare to 5 years average.

Keywords: hops crop, Saaz hop, bitter acids

Published: February 1, 2009 

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