Enterobacteriaceae count

  • 文章类型: Journal Article
    肉类工业在蒙古受到了极大的关注,拥有超过七千万头牲畜,对国家经济很重要。没有在所有屠宰场强制监管尸体的系统微生物测试,在蒙古,尚未对某些植物引入良好卫生实践和危害分析关键控制点(HACCP)的功效进行微生物测试。因此,样品从两个机构收集:具有来自第三方的HACCP证书的植物A和没有HACCP证书的植物B。总细菌计数(TBC)的比率和水平作为总体卫生指标,肠杆菌科细菌计数(EBC)作为粪便污染指标,和葡萄球菌属。在牛肉尸体的不同部位确定了作为个人卫生指标的计数(SC)。A厂大部分地区的污染率低于B厂(例如,臀部和侧翼的TBC:103-105和105-107,在植物A与工厂B中的104-106和105-108,分别)。植物A也具有较低的EBC和SC(p<0.001)。此外,100个牛肉屠中有2个(2%)对肠出血性大肠杆菌呈阳性,作为植物A中的食源性病原体指标。
    The meat industry has received great attention in Mongolia, having over 70 million livestock, and is important to the nation\'s economy. Systematic microbiological testing of carcasses has not been mandatorily regulated in all abattoir premises, and the efficacy of the introduction of the Good Hygiene Practice and Hazard Analysis Critical Control Points (HACCP) to some plants has not yet been tested microbiologically in Mongolia. Therefore, samples were collected from two establishments: plant A with an HACCP certificate from a third party and plant B without an HACCP certificate. The rates and levels of the total bacterial count (TBC) as overall hygiene indicators, the Enterobacteriaceae count (EBC) as fecal contamination indicators, and the Staphylococcus spp. count (SC) as personal hygiene indicators were determined on different parts of beef carcasses. The contamination rates in most parts were lower in plant A than in plant B (e.g., TBC in the rump and flank: 103-105 and 105-107, in plant A vs. 104-106 and 105-108 in plant B, respectively). Plant A also had a lower EBC and SC (p < 0.001). Furthermore, 2 out of 100 beef carcasses (2%) were positive for enterohemorrhagic Escherichia coli as a foodborne pathogen indicator in plant A.
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  • 文章类型: Journal Article
    对经过认证的游戏肉链的兴趣突出表明,需要在生产的特殊步骤中评估和管理影响car体卫生的因素。特别评估了冷藏前时间和温度对狩猎野猪尸体的需氧菌落计数和肠杆菌科细菌计数的影响。在两个过程步骤中考虑了30头野猪,其中被猎杀的动物仍然没有冷藏:内脏后和冷藏前。环境温度,记录了car体温度和所考虑的两步之间的经过时间。此外,对屠体内部的表面微生物负荷进行了分析。两个采样步骤之间的平均时间为6小时,平均环境温度为20.49°C。在此期间观察到屠体温度下降9.6°C。在这段时间内,需氧菌落计数和肠杆菌科细菌计数分别增加了0.68LogCFU/cm2和1.01LogCFU/cm2,与时间适度相关,但与温度增量无关。结果表明,意大利中部狩猎区的温度条件无法迅速降低car体温度,因此car体内脏和冷藏之间的时间不应超过6小时。
    The interest in certified game meat chains highlights the need for the evaluation and the management of factors affecting carcass hygiene along the peculiar steps of the production. The effects of time and temperature before chilling were specifically evaluated on aerobic colony count and Enterobacteriaceae count in hunted wild boar carcasses. Thirty wild boars were considered in two process steps where the hunted animal are still not chilled: after evisceration and just before chilling. Environmental temperature, carcass temperature and the elapse time between the two-step considered were registered. Furthermore, surface microbial loads were analyzed on the inner part of the carcasses. The mean time between the two sampling steps was 6 hours with an average environmental temperature of 20.49°C. A carcass temperature 9.6°C drop was observed during this period. In this lap of time aerobic colony count and Enterobacteriaceae count increased of 0.68 Log CFU/cm2 and 1.01 Log CFU/cm2 respectively, with a moderate correlation with the time but not with the temperature delta. The results reveal that the temperature conditions in central Italy hunting areas were not able to quickly reduce the carcass temperature and therefore the time between carcass evisceration and chilling should not exceed 6 hours.
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