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doi:10.1094/ASBCJ-2007-0824-02
Comparison of Methods for Degassing Beer for Analysis (1). Karl J.
Siebert (2) and P. Y. Lynn, Food Science and Technology Department,
Cornell University, Geneva, NY. (1) This work was presented at the 2006
ASBC Annual Meeting, La Quinta, CA. (2) Corresponding author. E-mail:
<kjs3@cornell.edu>; Phone: +1.315.787.2299; Fax: +1.315.787.2284. J.
Am. Soc. Brew. Chem. 65(4):229-231, 2007.
Replicate beer samples were degassed using ASBC Method Beer-1D (rotary
shaker) and the Innlab decarbonyzer. Assessments of alcohol and real
extract (RE) were made using an Anton Paar beer analyzer. The results for
foam-active (FA) and haze-active (HA) proteins also were compared. RE and
alcohol results were significantly lower (P < 0.001) with the
decarbonyzer than with the Beer-1D method, indicating more vigorous
removal of CO(2) and other volatile compounds. The results for HA and FA
proteins were not significantly different between the two methods.
Keywords: Alcohol, Decarbonation, Decarbonyzer, RE, Shaker
Replegar las muestras de la cerveza fueron desgasificados con el método
Beer-1D (agitador rotatorio) de ASBC y con un decarbonyzer de Innlab.
Evaluación del alcohol y extracto real (RE) fueron hechos con un
analizador de cerveza de Anton Paar. Las comparaciones de resultados de
proteínas que participan en la formación de espuma y proteínas causantes
de turbiedad también fueron hechas. Los resultados de RE y alcohol eran
perceptiblemente más bajos (P < 0.001) con el decarbonyzer que con
el método Beer-1D, indicando un eliminación más vigoroso de CO(2) y de
otros compuestos volátiles. Los resultados para las proteínas causantes de
turbiedad y de proteínas que participan en la formación no eran
perceptiblemente diferentes entre los dos métodos. Palabras claves:
Agitador, Alcohol, Decarbonyzer, Descarbonización, Extracto real
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The ASBC Journal publishes scientific papers, review articles, and technical reports dealing with the chemistry and microbiology of brewing ingredients and relevant technology, as well as the analytical techniques used in the malting and brewing industry.
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