期刊
JOURNAL OF THE AMERICAN SOCIETY OF BREWING CHEMISTS
卷 65, 期 4, 页码 208-213出版社
AMER SOC BREWING CHEMISTS INC
DOI: 10.1094/ASBCJ-2007-0817-01
关键词
anaerobiosis; brewing yeast; flocculation; measurement of; flocculation; pH
For the production brewer, predicting fermentation performance may also involve the determination of the flocculation capacity of a given yeast slurry. Several methods have been reported, and a few, most notably the Helm's test. have been adopted as recommended methods of analysis by the industry. It has been suggested that the Helm's test could be further adapted to include additional extrinsic factors known to influence flocculation. In the current study, the impact of CO2-induced anaerobiosis on this key fermentation performance indicator was investigated. The flocculation of aerobically and CO2-induced anacrobically incubated NewFLO lager brewing yeast strains was quantified using a modified version of the Helm's test. It was observed that the rate of onset and extent of expression of flocculation were modified in response to CO2-induced anaerobic incubation in all the yeast strains assessed in the study. It is suggested that the quantification of flocculation during CO2-induced anaerobic incubation rather than the currently utilized aerobic incubation provides a more representative and predictive assessment of the performance of this attribute during a production-scale brewery fermentation.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据