Fredericks J, Hawkins-Cooper D S, Hill D E, Luchansky J, Porto-Fett A, Gamble H R, Fournet V M, Urban J F, Holley R, Dubey J P
USDA, ARS, NEA, Animal Parasitic Diseases Laboratory, BARC-East, Bldgs. 1001 & 307-C, Beltsville, MD 20705, United States of America.
USDA, ARS, NEA, Food Safety and Intervention Technologies, 600 E. Mermaid Ln. ERRC, Wyndmoor, PA 19038-8598, United States of America.
Food Waterborne Parasitol. 2019 Mar 14;15:e00047. doi: 10.1016/j.fawpar.2019.e00047. eCollection 2019 Jun.
The production of safe and healthy food products represents one of the main objectives of the food industry. The presence of microorganisms in meat and products containing meat can result in a range of human health problems, as well as economic losses to producers of these products. However, contaminated meat products continue to initiate serious and large-scale outbreaks of disease in consumers. In addition to outbreaks of diseases caused by bacteria and viruses, parasitic organisms, such as , are responsible for foodborne infections worldwide, and in the case of , is considered the 2nd leading cause of death from foodborne illness in the U.S. Transmission of has historically been linked to the consumption of raw or undercooked meat products, including pork. Specific concerns with respect to pork products are ready-to-eat (RTE) pork meals. These are pork or products containing pork that are prepared by curing or drying, and are not intended to be cooked before being consumed. Previous studies have demonstrated that is inactivated during dry cured sausage preparation, apparently in the batter during fermentation. In this study, we have analyzed timing of inactivation of in freshly prepared pepperoni batter to confirm our previous findings, to determine how quickly inactivation occurs during fermentation, and to confirm what parameters of the sausage preparation are involved in inactivation of the parasite. Results from the current and previous study indicate that rapid inactivation of bradyzoites occurs in low salt batter for dry cured sausage within 4 h of initiation of fermentation.
生产安全健康的食品是食品工业的主要目标之一。肉类及含肉产品中存在微生物会导致一系列人类健康问题,同时也会给这些产品的生产商造成经济损失。然而,受污染的肉类产品仍不断引发消费者严重的大规模疾病爆发。除了由细菌和病毒引起的疾病爆发外,诸如弓形虫等寄生虫也是全球食源性感染的罪魁祸首,就弓形虫而言,它被认为是美国食源性疾病致死的第二大原因。弓形虫的传播历来与食用生的或未煮熟的肉类产品(包括猪肉)有关。对于猪肉产品,即食(RTE)猪肉餐尤其令人担忧。这些是通过腌制或干燥制备的猪肉或含猪肉的产品,食用前无需烹饪。先前的研究表明,在干腌香肠制备过程中,弓形虫会被灭活,显然是在发酵过程中的面糊中。在本研究中,我们分析了新鲜制备的意大利辣香肠面糊中弓形虫灭活的时间,以证实我们之前的发现,确定发酵过程中灭活发生的速度,并确定香肠制备的哪些参数与寄生虫的灭活有关。当前研究和先前研究的结果表明,在发酵开始后的4小时内,干腌香肠低盐面糊中的弓形虫速殖子会迅速灭活。