Thermophilic bacteria colony growth and its consequences in the food industry

被引：1
|
作者：
Melzoch, K
Votruba, J
Sekavová, B
Piterkova, L
Rychtera, M
机构：
[1] Acad Sci Czech Republ, Inst Microbiol, Prague, Czech Republic
[2] Inst Chem Technol, Dept Fermentat Chem & Bioengn, CR-16628 Prague, Czech Republic
来源：
CZECH JOURNAL OF FOOD SCIENCES | 2004年 / 22卷 / 01期
关键词：
thermophilic bacteria; colony growth; predictive modelling; microbial food spoilage;
D O I：
10.17221/3400-CJFS
中图分类号：
TS2 [食品工业];
学科分类号：
0832 ;
摘要：
The growth kinetics of thermophilic bacteria Bacillus acidocaldarius (CCM 3497), Bacillus stearothermophilus (CCMI 237), Thermus aquaticus (CCM 3488), Thermus ruber (CCM 4212), and Thermus species (CCM 4199) on solid media were studied in the temperature range of 40-60degreesC. The behaviour of bacterial colonies on agar plates was recorded with a digital camera during 160 hours of experiment. The growth of colony diameter was found to be linear with time at lower temperatures and an acceleration of the growth with time at suboptimal growth temperature 60degreesC was observed. A simple mathematical model describing the effect of irregular colony growth pattern on its rim can elucidate this unusual phenomenon.
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页码：1 / 8
页数：8
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