Combination of a novel designed spray cabinet and electrolyzed water to reduce microorganisms on chicken carcasses
| Autor: | Guangzhou Zhou, Huhu Wang, Debao Duan, Jun Qi, Xinglian Xu, Yang Dong |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
business.industry
Microorganism Food spoilage 0402 animal and dairy science food and beverages 04 agricultural and veterinary sciences Human decontamination Microbial contamination 040401 food science 040201 dairy & animal science Biotechnology chemistry.chemical_compound 0404 agricultural biotechnology chemistry Sodium hypochlorite Environmental science Food science business Total bacterial count Food Science |
| Zdroj: | Food Control. 86:200-206 |
| ISSN: | 0956-7135 |
| DOI: | 10.1016/j.foodcont.2017.11.027 |
| Popis: | Minimizing microbial contamination on poultry carcasses during processing in slaughterhouses is imperative for delaying spoilage and extending the shelf-life of meat. In the present study, a novel spray cabinet was designed, and the reduction of microorganisms on chicken carcasses achieved by the application of this cabinet combined with electrolyzed water was assessed at a slaughter-line. The spray cabinet, precisely designed to be a U-shaped cabinet according to the transmission of chicken carcasses in plants, primarily consists of side-, down- and up-spray units with 0.3 MPa of pressure for each nozzle, with a total of 188 nozzles. The chicken carcasses were completely cleaned by applying the cabinet, leaving no blind angles. A significant reduction in microbial counts on the chicken carcasses was observed after spraying with this cabinet combined with decontamination measures during post-evisceration and post-chilling procedures, and a total bacterial count reduction of approximately 0.5 log CFU/cm 2 was obtained by spraying with water alone. A microbial reduction of almost 1.0 log CFU/cm 2 or MPN/cm 2 was observed in chicken carcasses after spraying with acidic electrolyzed water (AEW) or slightly acidic electrolyzed water (sAEW) for 15 s. In addition, 30 mg/L of sAEW was as effective as 60 mg/L of AEW in the reduction of microorganism counts. These findings indicate that sAEW may be a promising substitute for traditional sodium hypochlorite in the decontamination of chicken carcasses during slaughter, which may also help poultry companies minimize production costs in carcass decontamination. |
| Databáze: | OpenAIRE |
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