Gabis D A, Flowers R S, Evanson D, Faust R E
Silliker Laboratories, Inc., 1304 Halsted Street, Chicago Heights, Illinois, 60411.
J Food Prot. 1989 Feb;52(2):122-124. doi: 10.4315/0362-028X-52.2.122.
An environmental microbiological surveillance program was conducted throughout the dry milk industry in cooperation with the American Dairy Products Institute (ADPI). The purpose of the survey was to determine the frequency and location of certain pathogenic microorganisms in dry milk and whey processing plant environments. A total of 402 samples were collected from 18 plants by each respective plant's personnel. All plants participated on a voluntary basis in response to a request sent to all ADPI members. All 410 samples were tested for Listeria spp., 245 samples were tested for Salmonella , and 312 samples were tested for Yersinia . Of the total, five samples collected from five separate plants were positive for either Salmonella or Listeria . Two samples were positive for Listeria (one for L. monocytogenes ), and three samples were positive for Salmonella . None was positive for Yersinia . Four out of the five positive samples were taken from drains in receiving, dryer, and butter production areas of the plants. The fifth positive sample was collected from a prefilter to a dryer.
与美国乳制品协会（ADPI）合作，在全脂奶粉行业开展了一项环境微生物监测项目。该调查的目的是确定全脂奶粉和乳清加工厂环境中某些致病微生物的出现频率和位置。各工厂的人员从18家工厂共采集了402个样本。所有工厂都是应发给所有ADPI成员的一份请求，自愿参与的。所有410个样本都进行了李斯特菌属检测，245个样本进行了沙门氏菌检测，312个样本进行了耶尔森氏菌检测。其中，从五个不同工厂采集的五个样本沙门氏菌或李斯特菌检测呈阳性。两个样本李斯特菌检测呈阳性（一个为产单核细胞李斯特菌），三个样本沙门氏菌检测呈阳性。耶尔森氏菌检测均为阴性。五个阳性样本中有四个取自工厂接收区、干燥区和黄油生产区的排水口。第五个阳性样本是从干燥机的一个前置过滤器采集的。
