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An Australian National Survey of the Microbiological Quality of Frozen Boneless Beef and Beef Primal Cuts

机译：澳大利亚全国冷冻无骨牛肉和生牛肉切块的微生物质量调查

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摘要

The fourth national baseline microbiological survey of Australian beef was conducted in 2011, including frozen boneless beef and, for the first time, samples from selected beef primal cuts. Cartons of frozen boneless beef (n = 1,165) sampled at 29 boning (fabrication) plants were found to have a mean total viable count of 2.2 log CFU/g, and the mean count for the 2.1% of samples with detectable Escherichia coli was 1.3 log CFU/g. The mean total viable counts for striploins (longissimus dorsi, n = 572) and outsides (biceps femoris, n = 572) were 1.3 and 1.5 log CFU/cm~2 respectively. E. coli isolates were obtained from 10.7 and 25.2% of striploins and outsides, respectively, with mean counts of -0.5 and -0.3 log CFU/cm~2 on positive samples. E. coli O157:H7, Salmonella, and Campylohacter were not isolated from any primal cut samples, and Salmonella was not isolated from any of the boneless product (E. coli O157:H7 and Campylobacter were not tested for). Listeria spp. Were not detected in any of the boneless product, and one Listeria isolate was obtained on 1 (0.2%) of 572 striploin samples. Coagulase-positive staphylococci were isolated from 3.4% of boneless beef samples, 7.7% of beef striploins, and 8.4% of beef outsides, with positive samples having mean log counts of 1.9 CFU/g, 0.2 CFU/cm~2, and 0.2 CFU/cm~2, respectively.
机译：2011年对澳大利亚牛肉进行了第四次全国基线微生物学调查，包括冷冻无骨牛肉，以及首次从部分牛肉原始切块中取样。发现在29个去骨（制造）工厂采样的纸箱冷冻无骨牛肉（n = 1,165）的平均总生存量为2.2 log CFU / g，可检出大肠杆菌的2.1％样品的平均计数为1.3对数CFU / g。猪腰肉（背最长肌，n = 572）和外面（股二头肌，n = 572）的平均总生存数分别为1.3 log CFU / cm〜2。大肠埃希菌分离株分别从10.7％和25.2％的脱衣舞中和外部获得，阳性样品的平均计数分别为-0.5和-0.3 log CFU / cm〜2。未从任何原始切割样品中分离出大肠杆菌O157：H7，沙门氏菌和弯曲杆菌，也未从任何无骨产品中分离出沙门氏菌（未测试大肠杆菌O157：H7和弯曲杆菌）。李斯特菌属在任何无骨产品中均未检测到，并且在572个里脊肉样品中的1个（0.2％）上获得了一个李斯特菌分离株。从3.4％的无骨牛肉样本，7.7％的牛肉里脊肉和8.4％的牛肉外部分离出凝固酶阳性葡萄球菌，阳性样本的平均对数分别为1.9 CFU / g，0.2 CFU / cm〜2和0.2 CFU / cm〜2。

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  • 来源
    《Journal of food protection》 |2012年第10期|p.1862-1866|共5页
  • 作者

    DAVID PHILLIPS; KATHRYN BRIDGER; IAN JENSON; JOHN SUMNER;

  • 作者单位

    Symbio Alliance, P.O. Box 4312, Eight Mile Plains, Queensland, Australia 4113;

    Symbio Alliance, P.O. Box 4312, Eight Mile Plains, Queensland, Australia 4113;

    Meat and Livestock Australia, Locked Bag 991, North Sydney, Australia 2059;

    Meat and Livestock Australia, Locked Bag 991, North Sydney, Australia 2059;

  • 收录信息 美国《科学引文索引》(SCI);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
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