Poultry Poultry processing equipment may harbor persistent salmonella
Sản phẩm khuyên dùng
Máy thổi khí AT thiết kế nhỏ gọn, lưu lượng khí lớn, áp suất mạnh. Phù hợp để lắp đặt sục khí ao nuôi tôm, trại giống, ương tôm, nuôi tôm nhà màng …
Sản phẩm khuyên dùng
Tima - Tủ điều khiển ứng dụng mạng không dây LoRa. Tima sử dụng giao thức truyền dữ liệu không dây tầm xa LoRa điều khiển thiết bị như máy bơm nước, động cơ điện…
Sản phẩm khuyên dùng
Chúng tôi tự hào giới thiệu Ống thông khí Nano-Tube bọt khí mịn, oxy hoà tan cao, cải tiến quan trọng để khuếch tán oxy hoà tan trong nước phục vụ nuôi tôm công nghệ cao.

Poultry processing equipment may harbor persistent salmonella

Author Tim Lundeen, publish date Thursday. January 9th, 2020

Poultry processing equipment may harbor persistent salmonella

Stringent environmental sampling plans and appropriate follow-up actions may help eliminate persistent salmonella strains from second unit processing equipment.

The prevalence of salmonella in poultry and poultry products is a source of concern for the poultry industry, consumers and regulatory agencies.

The U.S. Poultry & Egg Assn. (USPOULTRY) and the USPOULTRY Foundation funded a recent research project at Clemson University in Clemson, S.C., in which Dr. Kay Cooksey and colleagues evaluated poultry parts (cut pieces) coming out of second unit processing to see if the product had an increased salmonella prevalence compared with whole poultry carcasses processed in the same plant.

In a research summary, professor Cooksey, the Cryovac endowed chair in the Clemson food, nutrition and packaging sciences department, noted that most consumers buy their poultry in parts — legs, drumsticks, wings, etc. — instead of whole carcasses. She added that the salmonella contamination rate has been shown to be higher in parts compared to whole carcasses.

According to Cooksey, the project's intent was to see if poultry cut pieces coming out of second unit processing had an increased prevalence of salmonella than whole poultry carcasses processed in the same plant. She explained that the main goal was to evaluate potential contamination patterns and track the origin of salmonella on cut poultry parts.

The project had the three objectives: (1) identify risk factors leading to salmonella contamination in post-chilled whole poultry carcasses and poultry parts; (2) identify high-risk areas or steps during processing that promote salmonella dissemination on cut chicken pieces during second unit processing, and (3) use the findings to create a model for predicting cross-contamination during second unit processing.

Cooksey said the collected data showed that contamination patterns were different on skin-covered chicken parts versus chicken parts with no skin, suggesting that skin-covered chicken parts promote the presence and survival of salmonella, especially in suboptimal concentrations of disinfectant. Further, she said this allows for the increased possibility of cross-contamination.

Assessments of the collected strains suggested the presence of "persisters," or salmonella strains strongly associated with environmental samples that survive the sanitation process and are present on equipment for an extended time, Cooksey reported.

Poultry parts resulting from second processing had more salmonella than incoming carcasses, but the source appeared to be the processing equipment, Cooksey said, noting that the predominant salmonella patterns and isolates were significantly associated with the persistent strains on the processing line.

Cooksey suggested that the solution may reside with stringent environmental sampling plans and appropriate follow-up actions to eliminate persistent strains. When antimicrobial treatments such as chlorine are applied, chlorine concentration and contact time with the poultry carcass are important factors to eliminate salmonella on carcasses and parts, she concluded.


Sản phẩm khuyên dùng
Máy thổi khí AT-80 đang rất được ưa chuộng hiện nay trên thị trường, lưu lượng khí lớn, hoạt động mạnh mẽ.
Sản phẩm khuyên dùng
Tima - Tủ điều khiển ứng dụng mạng không dây LoRa. Tima sử dụng giao thức truyền dữ liệu không dây tầm xa LoRa điều khiển thiết bị như máy bơm nước, động cơ điện…
Nutrient sparing enzyme based monogastric concept touted as sustainable and cost effective Nutrient sparing enzyme based monogastric… Impact of lowering the protein content in feed for broilers Impact of lowering the protein…