Dickens J A, Berrang M E, Cox N A
Poultry Processing and Meat Quality Research Unit, USDA, Agricultural Research Service, South Atlantic Area, Russell Research Center, Athens, Georgia 30604-5677, USA.
Poult Sci. 2000 Aug;79(8):1200-3. doi: 10.1093/ps/79.8.1200.
Protecta II, an herbal extract on an NaCl carrier, was evaluated in a 30-min, 1 C simulated chill for its effectiveness of lowering microbial counts on broiler carcasses. Eighteen broiler carcasses were obtained from a local processing plant after final wash but before chill, placed into an insulated container, and transported to the research facility for treatment. Six plant run controls (PRC) were immediately bagged on return to the pilot plant, and a whole-carcass rinse was performed. The remaining carcasses were subjected to a 30-min chill (1 C) in tap water or a 2% solution of Protecta II, (n = 6 per treatment). After treatment, carcasses were rinsed with tap water and subjected to the whole-carcass rinse procedure. All rinse diluents were microbiologically analyzed for total aerobes, coliforms, generic Escherichia coli, and Campylobacter. Six replications were analyzed on 6 different d for a total 36 carcasses per treatment and 36 PRC. The PRC carcasses had 3.7, 2.5, 2.1, and 2.0 log10 cfu/mL for total aerobes, coliforms, generic E. coli, and Campylobacter. Water treatment significantly reduced counts (2.6, 1.4, 0.7, and 0.9 log10 cfu/mL, respectively) when compared with the PRC. Protecta II treatment significantly reduced counts (P < 0.01) even further to counts of 0.06, 0.04, 0.01, and 0.00 log10 cfu/mL for total aerobes, coliforms, Campylobacter, and E. coli, respectively. Detectable levels of the monitored organisms were 1 cell/mL (log10 0) for the E. coli, coliforms, and total counts and 10 cells/mL (log10 1) for the Campylobacter. Microbial counts for carcasses treated with Protecta II would be considered too low to be detected (<1 cell/mL).
“Protecta II”是一种以氯化钠为载体的草药提取物，在1℃模拟冷藏30分钟的条件下，对其降低肉鸡胴体微生物数量的效果进行了评估。从当地加工厂获取18只肉鸡胴体，在最后清洗后但冷藏前，将其放入隔热容器中，运至研究设施进行处理。6只工厂运行对照（PRC）在返回中试工厂后立即装袋，并进行全胴体冲洗。其余胴体在自来水中或2%的“Protecta II”溶液中进行30分钟的冷藏（1℃）处理（每种处理n = 6）。处理后，胴体用自来水冲洗，并进行全胴体冲洗程序。对所有冲洗稀释液进行微生物分析，检测总需氧菌、大肠菌群、普通大肠杆菌和弯曲杆菌。在6个不同的日期进行了6次重复分析，每种处理和36只PRC总共36只胴体。PRC胴体的总需氧菌、大肠菌群、普通大肠杆菌和弯曲杆菌数量分别为3.7、2.5、2.1和2.0 log10 cfu/mL。与PRC相比，水处理显著降低了菌数（分别为2.6、1.4、0.7和0.9 log10 cfu/mL）。“Protecta II”处理显著进一步降低了菌数（P < 0.01），总需氧菌、大肠菌群、弯曲杆菌和大肠杆菌的菌数分别降至0.06、0.04、0.01和0.00 log10 cfu/mL。所监测微生物的可检测水平，大肠杆菌、大肠菌群和总菌数为1个细胞/mL（log10 0），弯曲杆菌为10个细胞/mL（log10 1）。用“Protecta II”处理的胴体微生物数量会被认为过低而无法检测到（<1个细胞/mL）。
