Predictive risk models combined with employee- and management-implemented SSOPs identified and reduced Listeria monocytogenes prevalence in retail delis

Wu, Sophie Tongyu; Hammons, Susan R.; Wang, Jingjin; Assisi, Clara; DiPietro, Brittany; Oliver, Haley F.

doi:10.1016/j.foodcont.2019.106942

Cited by 9 publications

(5 citation statements)

References 51 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Deep cleaning of facilities may reduce L. monocytogenes prevalence and potentially eliminate the pathogen from facilities. However, effective cleaning and sanitation efforts can be limited because of recontamination of the processing environment over time (30). In addition, other methods such as environmental monitoring, good manufacturing practices, and sanitation standard operating procedures are implemented in processing facilities as efforts to reduce pathogen contamination in the facilities.…”

Section: Discussionmentioning

confidence: 99%

Prevalence of Listeria Species and Listeria monocytogenes on Raw Produce Arriving at Frozen Food Manufacturing Facilities

Magdovitz¹,

Gummalla²,

Garren³

et al. 2021

Journal of Food Protection

View full text Add to dashboard Cite

Ubiquity of Listeria monocytogenes in the environment impacts the food industry and presents concerns for frozen food facilities. This study determined the prevalence and numbers of Listeria species and L. monocytogenes on raw produce arriving at frozen food facilities. Raw produce was collected using multi-level blinding protocols to ensure anonymity of participants and avoid traceback. Five raw vegetables were selected: corn, carrots, green beans, peas, and spinach. Raw products were collected after arrival at the facilities but before any cleaning or other pre-processing steps that are typically performed inside the facility. The FDA BAM method for detection of Listeria spp. and L. monocytogenes was followed, with PCR screening followed by selective plating methods. Listeria numbers were estimated from positive samples using MPN methodology. A total of 290 samples were collected, with 96 and 17 samples positive for Listeria spp. (33.1%) and L. monocytogenes (5.9%), respectively. Enumeration data for the 96 Listeria spp. samples indicated 82 samples had greater than 100 MPN Listeria spp./g and 14 samples less than 100 MPN Listeria spp./g. The prevalence of Listeria spp. varied by commodity: spinach (66.7%), peas (50%), corn (32.2%), green beans (22.2%), and carrots (13%). L. monocytogenes prevalence was determined in corn (13.6%), peas (6.3%), and green beans (4.2%) arriving at processing facilities. Such data was previously unavailable to frozen vegetable processors and is valuable in implementing process control standards. The prevalence and pathogen concentration data from raw commodities found in this study can provide the industry information to conduct more accurate quantitative risk assessments and provide a baseline to model and target appropriate pathogen reduction steps during processing.

show abstract

Section: Discussionmentioning

confidence: 99%

Prevalence of Listeria Species and Listeria monocytogenes on Raw Produce Arriving at Frozen Food Manufacturing Facilities

Magdovitz¹,

Gummalla²,

Garren³

et al. 2021

Journal of Food Protection

View full text Add to dashboard Cite

show abstract

“…This points toward the possible role of employees in facilitating L. monocytogenes spread from their introduction point in the FPEs to across a facility (Tompkin, 2002). Hence, in addition to deep cleaning and facility improvements, the practice of training employees, educating them, and maintaining programs could reduce L. monocytogenes prevalence considerably (Wu et al., 2020).…”

Section: Influence Of Processing Environmentmentioning

confidence: 99%

Environmental persistence of Listeria monocytogenes and its implications in dairy processing plants

Chowdhury,

Anand

2023

Comp Rev Food Sci Food Safe

View full text Add to dashboard Cite

Listeriosis, an invasive illness with a fatality rate between 20% and 30%, is caused by the ubiquitous bacterium Listeria monocytogenes. Human listeriosis has long been associated with foods. This is because the ubiquitous nature of the bacteria renders it a common food contaminant, posing a significant risk to the food processing sector. Although several sophisticated stress coping mechanisms have been identified as significant contributing factors toward the pathogen's persistence, a complete understanding of the mechanisms underlying persistence across various strains remains limited. Moreover, aside from genetic aspects that promote the ability to cope with stress, various environmental factors that exist in food manufacturing plants could also contribute to the persistence of the pathogen. The objective of this review is to provide insight into the challenges faced by the dairy industry because of the pathogens’ environmental persistence. Additionally, it also aims to emphasize the diverse adaptation and response mechanisms utilized by L. monocytogenes in food manufacturing plants to evade environmental stressors. The persistence of L. monocytogenes in the food processing environment poses a serious threat to food safety and public health. The emergence of areas with high levels of L. monocytogenes contamination could facilitate Listeria transmission through aerosols, potentially leading to the recontamination of food, particularly from floors and drains, when sanitation is implemented alongside product manufacturing. Hence, to produce safe dairy products and reduce the frequency of outbreaks of listeriosis, it is crucial to understand the factors that contribute to the persistence of this pathogen and to implement efficient control strategies.

show abstract

“…Sufficient training is also needed so that they will understand the new work patterns correctly. The implementation of Standard operating procedures needs to be complemented with training [27].…”

Section: Work Fatiguementioning

confidence: 99%

Implementation of Ergonomic-Based Work Procedures Reducing Complaints of Postural Stress and Work Fatigue Resulting in Increased Employee Income and Company Profit

Susihono

Ariesca

Lady

2021

Int. J. Adv. Sci. Eng. Inf. Technol.

View full text Add to dashboard Cite

In general, the manufacturing industry relies more on machine-based processes. However, in certain activities, human labor is still needed due to the limitations of the machine function, as humans are faster than the machine. However, the activities using human muscle power are at risk of postural stress and early work fatigue. Work fatigue will affect work performance and productivity. The Standard Operating Procedures (SOP), which do not consider work attitude, will result in inconvenience at work and complaints on body parts and decreased performance. Besides, it also causes the inability to meet production targets so that employees cannot reach the maximum wage, and the company suffers losses. The redesign of the Standard Operating Procedures (SOP) is needed to make people as the center of all improvement activities. The design used in this study was treatment by subject design. The results showed that there were differences (p <0.05) between pre- and post-intervention results, Decreased postural stress complaints (moment of compressive force) in posture 1 (7.31%), posture 2 (23.09%), and posture 3 (4.74%). In comparison, the reduction of work fatigue was obtained from 81.26±10.85 to 70.87±3.68 (12.78%). After the implementation of ergonomic-based SOPs, there was an increase in employee income by 25.23% or (IDR 2,068,091/month) and an increase in company profits (IDR 51,702,286/month). The implementation of ergonomic-based SOPs was able to reduce postural stress, fatigue, and to increase employee income and company profits.

show abstract

Predictive risk models combined with employee- and management-implemented SSOPs identified and reduced Listeria monocytogenes prevalence in retail delis

Cited by 9 publications

References 51 publications

Prevalence of Listeria Species and Listeria monocytogenes on Raw Produce Arriving at Frozen Food Manufacturing Facilities

Prevalence of Listeria Species and Listeria monocytogenes on Raw Produce Arriving at Frozen Food Manufacturing Facilities

Environmental persistence of Listeria monocytogenes and its implications in dairy processing plants

Implementation of Ergonomic-Based Work Procedures Reducing Complaints of Postural Stress and Work Fatigue Resulting in Increased Employee Income and Company Profit

Contact Info

Product

Resources

About