A RAPD-based survey of thermophilic bacilli in milk powders from different countries.
A RAPD-based survey of thermophilic bacilli in milk powders from different countries.
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DOI：
10.1016/j.ijfoodmicro.2004.03.020
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发表时间：
2004-11
影响因子：
5.4
通讯作者：
A. Rückert;R. Ronimus;H. Morgan
中科院分区：
文献类型：
--
作者：
A. Rückert;R. Ronimus;H. Morgan
来自18个不同国家的28种奶粉被检测了嗜热杆菌的数量和类型。在742个分离株中，96.8%被分配到与以前在新西兰粉末中发现的相同的杆菌菌株。优势菌株为黄热厌氧芽孢杆菌C株，其次为地衣芽孢杆菌F株。前者也普遍存在于新西兰的粉末，结果表明，A。黄热病是一种广泛存在的污染物，在生产奶粉的工厂中似乎无处不在。再次证实了奶粉中存在嗜热脂肪土芽孢杆菌和较小程度的枯草芽孢杆菌的嗜热菌株。
Twenty-eight milk powders from 18 different countries were examined for the number and type of contaminating thermophilic bacilli. Of 742 isolates examined, 96.8% were assigned to the same strains of bacilli as previously found in New Zealand powders. The dominant isolate was Anoxybacillus flavithermus strain C followed by Bacillus licheniformis strain F. The former was also prevalent in New Zealand powders and the results demonstrate that A. flavithermus represents a widespread contaminant, seemingly ubiquitous in factories producing milk powder. The presence of thermophilic strains of Geobacillus stearothermophilus and to a lesser extent of Bacillus subtilis in milk powders was reconfirmed.