在可控气氛下储存的新鲜蔬菜上单核细胞增生李斯特菌的生长情况
Growth of Listeria monocytogenes on Fresh Vegetables Stored Under Controlled Atmosphere.
作者信息
Berrang Mark E, Brackett Robert E, Beuchat Larry R
机构信息
Department of Food Science and Technology, University of Georgia, Agricultural Experiment Station, Griffin, GA 30223-1797.
出版信息
J Food Prot. 1989 Oct;52(10):702-705. doi: 10.4315/0362-028X-52.10.702.
The effects of controlled atmosphere storage (CAS) on survival and growth of Listeria monocytogenes on fresh asparagus, broccoli, and cauliflower were investigated. Vegetables were inoculated with L. monocytogenes strain Scott A or LCDC 81-861 (10-10 CFU/g) and stored at 4 and 15°C under CAS and air. L. monocytogenes populations were monitored over 21 day (4°C) and 10 day (15°C) periods using selective recovery media and a direct plating technique. CAS lengthened the time that all vegetables were considered acceptable for consumption by subjective inspection. Populations of L. monocytogenes increased during storage but CAS did not influence the rate of growth.
研究了气调贮藏（CAS）对单核细胞增生李斯特菌在新鲜芦笋、西兰花和花椰菜上存活及生长的影响。将蔬菜接种单核细胞增生李斯特菌菌株Scott A或LCDC 81 - 861（10⁶ - 10⁸CFU/g），并在4℃和15℃条件下分别于气调环境和空气中贮藏。使用选择性复苏培养基和直接平板计数技术，在21天（4℃）和10天（15℃）的时间段内监测单核细胞增生李斯特菌的数量。通过主观检查，气调贮藏延长了所有蔬菜被认为可食用的时间。贮藏期间单核细胞增生李斯特菌数量增加，但气调贮藏并不影响其生长速率。
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