Nonacid meat decontamination technologies: model studies and commercial applications

Area of Science:

• Food Science
• Microbiology
• Public Health

Background:

• Growing consumer concern over foodborne illnesses necessitates improved raw meat safety.
• New US regulations mandate Hazard Analysis Critical Control Point (HACCP) principles and microbiological testing for meat and poultry plants.
• These factors have spurred innovation in meat and poultry decontamination technologies.

Purpose of the Study:

• To review carcass decontamination technologies for meat and poultry, focusing on recent advancements and commercial use.
• To evaluate the effectiveness of various decontamination methods in reducing microbial contamination.
• To assess the role of these technologies in enhancing overall food safety.

Main Methods:

• Review of existing literature on meat and poultry decontamination technologies.
• Analysis of technologies including live animal cleaning, chemical dehairing, knife-trimming, steam/hot water-vacuuming, spray washing, and pressurized steam exposure.
• Exclusion of organic acid-based decontamination methods from the primary review.

Main Results:

• Several decontamination technologies can reduce microbial counts by 1-3 log colony forming units (cfu)/cm2 under optimal conditions.
• Approved commercial applications include steam-vacuuming, spray washing (water, chlorine, trisodium phosphate), hot water rinsing, and pressurized steam.
• These methods aim to reduce microbial load on carcasses, contributing to safer meat products.

Conclusions:

• Various carcass decontamination technologies show promise in reducing microbial contamination on meat and poultry.
• Commercial adoption of methods like steam-vacuuming and spray washing indicates their practical application.
• Long-term surveillance data on foodborne illnesses will be crucial to fully determine the impact of these decontamination strategies on public health.