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VIEW ARTICLE    doi:10.1094/ASBCJ-2007-0820-01

Trace Analysis of Hop Essential Oils in Spent Hop. Mirosław Anioł (1), Ewa Huszcza, Agnieszka Bartmańska, Anna Żołnierczyk, Wanda Mączka, and Czesław Wawrzeńczyk, Department of Chemistry, Wrocław University of Environmental and Life Sciences, Wrocław, Poland. (1) Corresponding author. E-mail: <aniol@ozi.ar.wroc.pl>; Fax: +48-71-3284124. J. Am. Soc. Brew. Chem. 65(4):214-218, 2007.

The volatile constituents of spent hop (obtained by industrial supercritical CO(2) extraction) were extracted using the Deryng apparatus and determined by gas chromatography and gas chromatography–mass spectrometry. Isooctane containing hexadecane as an internal standard was used as an extracting solvent. beta-Myrcene (241 µg/g) was a predominant component of the spent hop obtained by supercritical CO(2) extraction of hop variety Ma­rynka. Limonene (7.83 µg/g), linalool (8.08 µg/g), geraniol (3.08 µg/g), 2-undecanone (1.36 µg/g), beta-caryophyllene (11.2 µg/g), and alpha-humulene (19.1 µg/g) also were determined. Caryophyllene oxide was not detected. Keywords: Deryng apparatus, Essential oils, Spent hop


Los componentes volátiles del lúpulo gastado (obtenido por extracción industrial usando el CO(2) supercrítico) fueron extraídos usando el aparato de Deryng y determinados por cromatografía de gases y cromatografía de gases–espectrometría de masas. El isooctano que contenía hexadecano como estándar interno fue utilizado como solvente que extraía. El beta-myrcene (241 µg/g) era un componente predominante del lúpulo gastado obtenido por la extracción usando el CO(2) supercrítico de la variedad de lúpulo Marynka. El limonene (7.83 µg/g), linalool (8.08 µg/g), geraniol (3.08 µg/g), 2-undecanone (1.36 µg/g), beta-caryophyllene (11.2 µg/g), y alfa-humulene (19.1 µg/g) también fueron determinados. El óxido de caryophyllene no fue detectado. Palabras claves: Aceites esenciales, Aparato de Deryng, Lúpulo gastado

 
 
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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.