Induced cryotolerance of Lactobacillus delbrueckii subsp. bulgaricus LBB by preincubation at suboptimal temperatures with a fermentable sugar

被引：18

作者：

deUrraza, P

DeAntoni, G

机构：

[1] Ctro. Invest. y Desarrollo C., UNLP, 47 y 116, 1900, La Plata

来源：

CRYOBIOLOGY | 1997年 / 35卷 / 02期

关键词：

D O I：

10.1006/cryo.1997.2036

中图分类号：

Q [生物科学];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

The resistance of Lactobacillus delbrueckii subsp. bulgaricus to freeze-thaw cycles can be increased by incubating bacterial suspensions in nongrowing conditions before freezing. Incubation at 30 degrees C during 60 min in medium with a fermentable sugar induces cryotolerance of strain LBB. No change of viable counts but a decrease of extracellular pH and an increase of intracellular ATP during preincubation were observed. Other preincubation conditions did not show any improvement in cryotolerance. (C) 1997 Academic Press.

引用

页码：159 / 164

页数：6

共 13 条

[1] EFFECT OF CALCIUM ON THE CRYOPRESERVATION OF LACTOBACILLUS-BULGARICUS IN DIFFERENT FREEZING MEDIA [J].