Castillo-Ayala A, Salas-Ubiarco M G, Márquez-Padilla M L, Osorio-Hernández M D
Laboratorie de Microbiología Sanitaria, Facultad de Ciencias Químicas, Universidad de Guadalajara, Jalisco, Mexico.
Rev Latinoam Microbiol. 1993 Oct-Dec;35(4):371-5.
The presence of Campylobacter spp. and Salmonella was studied in 70 samples of fresh retail chicken pieces and in 40 samples of roast chicken. Total plate count was performed in every sample as well. Most of the samples of fresh chicken yielded total plate counts > 10(8)/piece (thigh), while in roast chicken these counts ranged from 10(3) to 10(5)/piece (leg and thigh). Campylobacter was isolated from 33% of fresh chicken and from no sample of roast chicken. Salmonella was isolated from 69% of fresh chicken and 2.5% of roast chicken. There was no relationship between total plate counts in fresh chicken and isolation of either Campylobacter or Salmonella. Sixty percent of the Salmonella isolates belonged to serotype S. anatum, and about 50% of the isolates of Campylobacter were identified as being C. coli. The only Salmonella-positive sample of roast chicken yielded three serotypes: S. give, S. muenster, and S. manhattan. Presence of Campylobacter and Salmonella in chicken is of concern, due to the risk of spreading from the raw food to other cooked foods. The isolation of pathogens from roast chicken indicates mishandling during processing and/or storage of the product.
对70份新鲜零售鸡块样本和40份烤鸡样本进行了弯曲杆菌属和沙门氏菌的检测。同时对每个样本进行了总菌落计数。大多数新鲜鸡肉样本的总菌落计数>10⁸/块（大腿部分），而烤鸡的这些计数范围为10³至10⁵/块（腿和大腿部分）。从33%的新鲜鸡肉中分离出弯曲杆菌，烤鸡样本中未分离出。从69%的新鲜鸡肉和2.5%的烤鸡中分离出沙门氏菌。新鲜鸡肉中的总菌落计数与弯曲杆菌或沙门氏菌的分离之间没有关系。60%的沙门氏菌分离株属于鸭沙门氏菌血清型，约50%的弯曲杆菌分离株被鉴定为大肠弯曲杆菌。唯一一份沙门氏菌呈阳性的烤鸡样本产生了三种血清型：吉韦沙门氏菌、明斯特沙门氏菌和曼哈顿沙门氏菌。鸡肉中存在弯曲杆菌和沙门氏菌令人担忧，因为存在从生食传播到其他熟食的风险。从烤鸡中分离出病原体表明在产品加工和/或储存过程中处理不当。
