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Title: Wheat variety and barley malt properties: Influence on haze intensity and foam stability of wheat beer
Authors: Depraetere, SA ×
Delvaux, Filip
Coghe, Stefan
Delvaux, Freddy #
Issue Date: 2004
Publisher: Inst brewing
Series Title: Journal of the institute of brewing vol:110 issue:3 pages:200-206
Abstract: Laboratory wheat beers were brewed with different wheat varieties of different protein content (8.7-14.4%) and with five different barley malts, varying in degree of modification (soluble protein: 3.9-6.9%). In a first series of experiments, it was investigated whether wheat positively influences the foam stability, a major characteristic of wheat beers. NIBEM and Rudin (CO,) foam analyses revealed that the effect of wheat on foam stability depended on the barley malt used for brewing. When using malt with high foaming potential, wheat exerts a negative influence. However, wheat added to over-modified malt with less foam promoting factors, ameliorates beer foaming characteristics proving that wheat contains foam active compounds. In addition, Rudin (N-2) values suggested that wheat positively influences foam stability by decreasing liquid drainage, probably caused by a higher beer viscosity and/or a finer foam bubble size distribution.
URI: 
ISSN: 0046-9750
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Centre for Food and Microbial Technology
× corresponding author
# (joint) last author

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