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Optimal Conditions for Propagation in Bottom and Top Brewing Yeast Strains
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  • Optimal Conditions for Propagation in Bottom and Top Brewing Yeast Strains
  • Optimal Conditions for Propagation in Bottom and Top Brewing Yeast Strains
저자명
Cheong. Chul,Wackerbauer. Karl,Lee. Si-Kyung,Kang. Soon-Ah
간행물명
Food science and biotechnology
권/호정보
2008년|17권 4호|pp.739-744 (6 pages)
발행정보
한국식품과학회
파일정보
정기간행물|ENG|
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이 논문은 한국과학기술정보연구원과 논문 연계를 통해 무료로 제공되는 원문입니다.
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기타언어초록

The method of yeast propagation has an influence on yeast physiology, fermentation ability, flocculation rate, and taste stability of beer. In order to find optimal conditions for propagation, several parameters were investigated in combinations. The bottom brewing yeast grown at $10^{circ}C$ indicated that a higher flocculation capacity during the $1^{st}$ fermentation. However, the taste stability and the aroma profile were not affected by parameters of propagation investigated. The beer quality was rather affected by storage duration. In addition, a correlation between tasting and chemiluminescence was found at the beer, which was produced using bottom brewing yeast. The propagation at $10-25^{circ}C$ with addition of zinc ion indicated the best condition to improve fermentation ability, flocculation rate, and filterability for bottom brewing yeast, whereas the propagation at $30^{circ}C$ with addition of zinc ion showed the best condition to increase fermentation ability for top brewing yeasts.