Influence of thermal and osmotic stresses on the viability of the yeast Saccharomyces cerevisiae

被引:35
作者
Beney, L [1 ]
de Marañón, IM [1 ]
Marechal, PA [1 ]
Gervais, P [1 ]
机构
[1] Univ Bourgogne 1, Ecole Natl Super Biol Appl Nutr & Alimentat, Lab Genie Procedes Alimentaires & Biotechnol, F-21000 Dijon, France
关键词
osmotic pressure; temperature; variation rater; viability;
D O I
10.1016/S0168-1605(00)00203-8
中图分类号
TS2 [食品工业];
学科分类号
0832 ;
摘要
This work studies the effect of thermal and dehydration kinetics on the viability of Saccharomyces cerevisiae. The influence of the rate of temperature (T) and osmotic pressure (Pi) increases are first investigated. Results showed that yeast viability is preserved by slow variations of temperature or osmotic pressure in a precise range of T or Pi. The influence of a previous thermal stress on the resistance to a hyperosmotic stress is also studied. Temperatures equal to or lower than 10 degrees C allowed the presentation of viability after an osmotic stress whereas temperatures above 10 degrees C did not preserve yeast survival. (C) 2000 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:275 / 279
页数:5
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