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Selective Recovery of Flavor Compounds from Fermentation Byproduct Carbon Dioxide Gas by Adsorption

MBAA TQ vol. 38, Number 4, 2001, Pages 235-241  |  VIEW ARTICLE

Gil Sanchez. Miller Brewing Company, Milwaukee, WI, USA. Poster selected for presentation at the 2001 MBAA Convention.

Abstract
In this study, a pilot test skid equipped with an adsorption column demonstrated the ability to selectively adsorb and concentrate flavor compounds from brewery fermentation byproduct carbon dioxide gas without adsorbing sulfides. Dosing brewed products with the recovered flavor concentrate further enhanced the flavor characteristics of those products. This paper provides a description of the pilot adsorption equipment and the method for producing a flavor concentrate. In addition, the experimental test procedures, analytical and sensory results, along with the effect of several process variables such as time and temperature are summarized in figures and tables. The final conclusions are listed.
Keywords: flavor recovery, brewery fermentation, carbon dioxide, gas adsorption  

S�ntesis
En este estudio, una prueba piloto equipada con una columna de absorci�n demostr� la capacidad de concentrar y absorber selectivamente compuestos de sabor provenientes del gas di�xido de carbono subproducto fermentador de la cervecer�a sin absorber sulfuros. El dosificar a los productos de la elaboraci�n de la cerveza con el concentrado de sabor recuperado mejor� aun m�s las caracter�sticas de sabor de esos productos. Este documento ofrece una descripci�n del equipo de absorci�n piloto y el m�todo para producir el concentrado de sabor. Adem�s, se resumen en figuras y tablas los procedimientos de pruebas experimentales, los resultados anal�ticos y sensoriales, as� como el efecto de varias variables del proceso tales como tiempo y temperatura. Se enumeran las conclusiones finales.

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