Bioaerosol biomonitoring: Sampling optimization for molecular microbial ecology

Ferguson, Robert; Garcia‐Alcega, Sonia; Coulon, Frédéric; Dumbrell, Alex J.; Whitby, Corinne; Colbeck, I.

doi:10.1111/1755-0998.13002

Cited by 66 publications

(39 citation statements)

References 102 publications

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“…The suspensions of microscopic solid or liquid particles in the air are defined as aerosols (Ferguson, Cumbrell, & Whitby, 2019). Those of major impact in the food sector are known as bioaerosols and consist of living substances with diameters up to 50 µm (Burfoot, 2016).…”

Section: What Is a Bioaerosol And Why Air Monitoring Is Important?mentioning

confidence: 99%

Airborne contamination in the food industry: An update on monitoring and disinfection techniques of air

Masotti

Cattaneo

Stuknytė

et al. 2019

Trends in Food Science & Technology

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Background: Hygienic and safe production is a high priority in the food industry. During processing, food may be subjected to bio-contamination. Accordingly, preservation of overall quality by keeping a clean environment is a goal to pursue. Among microbial vectors, air is considered a contributing factor to crosscontamination. Scope and approach: Nowadays, in food plants emphasis is paid to the assessment of air bioload in view of prevention of recontamination. Normally, air entering a processing plant is chilled and filtered to remove undesired microorganisms from outside. Nevertheless, apart from clean-room environments, uncontrolled factors (processes, personnel, structures, etc.) contribute to the release of microorganisms in indoor environments, resulting in generation of bioaerosols highly variable within and among plants, and on a daily basis within the same plant. Key findings and conclusions: This review focuses on the relevance of bioaerosol monitoring in the food industry, providing an update of air sampling techniques and methods of analysis in view to strengthen preventive hygienic actions. Disinfection procedures to minimize microbial counts in the air as additional safeguard to the standard chemical sanitation protocols are reviewed. Benefits and limitations of air treatment by chemical fogging, ozonation, UV irradiation or cold plasma are outlined. Air bioload monitoring and the implementation of subsequent air disinfection procedures are a feasible and a routinely exploitable strategy to satisfy hygienic requirements in food plants. Further research is required to face technical challenges and optimize the feasibility of some disinfection technologies for the real-world of food environments.

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Section: What Is a Bioaerosol And Why Air Monitoring Is Important?mentioning

confidence: 99%

Airborne contamination in the food industry: An update on monitoring and disinfection techniques of air

Masotti

Cattaneo

Stuknytė

et al. 2019

Trends in Food Science & Technology

View full text Add to dashboard Cite

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“…The main disadvantage of impingementation is related to the evaporation of liquid. However, this may sometimes benefit the experiment, as it increases the concentration of the sample before the subsequent analyses [ 24 , 26 ].…”

Section: Inspection Of Methodologies Applied For Identification Anmentioning

confidence: 99%

The Bad and the Good—Microorganisms in Cultural Heritage Environments—An Update on Biodeterioration and Biotreatment Approaches

et al. 2021

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Cultural heritage objects constitute a very diverse environment, inhabited by various bacteria and fungi. The impact of these microorganisms on the degradation of artworks is undeniable, but at the same time, some of them may be applied for the efficient biotreatment of cultural heritage assets. Interventions with microorganisms have been proven to be useful in restoration of artworks, when classical chemical and mechanical methods fail or produce poor or short-term effects. The path to understanding the impact of microbes on historical objects relies mostly on multidisciplinary approaches, combining novel meta-omic technologies with classical cultivation experiments, and physico-chemical characterization of artworks. In particular, the development of metabolomic- and metatranscriptomic-based analyses associated with metagenomic studies may significantly increase our understanding of the microbial processes occurring on different materials and under various environmental conditions. Moreover, the progress in environmental microbiology and biotechnology may enable more effective application of microorganisms in the biotreatment of historical objects, creating an alternative to highly invasive chemical and mechanical methods.

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“…The determination of the concentration of aerosol with viral SARS-CoV-2 RNA was enabled by a droplet digital polymerase chain reaction (ddPCR) method [24]. The ddPCR method specifically detects SARS-CoV-2, discarding any possible artifact from using presterilized gelatin filters that could contain bacterial DNA [25]. Figure 1 displays the relative high concentration of SARS-CoV-2 RNA in two protective apparel removal rooms and a medical staff office of the Fangcang Hospital.…”

Section: Sampling Methods and Characterization Of Bioaerosols With Samentioning

confidence: 99%

Bioaerosol Size Effect in COVID-19 Transmission

Guzmán¹

2020

Preprint

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The fast spread of COVID-19 constitutes a worldwide challenge to the public health, educational, and trade systems, affecting the overall wellbeing of human societies. The high transmission and mortality rates of this virus, and the unavailability of a vaccine and antidote, resulted in the decision of multiple governments to force measurements of social distancing. Thus, it is of general interest to consider the validity of the proposal for keeping a social distancing of at least 6.0 ft (1.8 m) from persons with COVID-19. The eventual exposure to the bioaerosol can result in the deposition o the pathogen in the respiratory track of the host causing disease and an immunological response. In the atmospheric context, the work evaluates the effect of aerodynamic particle size in carrying RNA copies of the novel coronavirus. A COVID-19 carrier person talking, sneezing, or coughing at distance of 1.8 m can still provide a pathogenic bioaerosol load with submicron particles that remain viable in air for up to 3 hours for exposure of healthy persons near and far the source in a stagnant environment. The deposited bioaerosol creates contaminated surfaces, which if touched can act as a path to introduce the pathogen by mouth, nose, or eyes and cause disease.

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Bioaerosol biomonitoring: Sampling optimization for molecular microbial ecology

Cited by 66 publications

References 102 publications

Airborne contamination in the food industry: An update on monitoring and disinfection techniques of air

Airborne contamination in the food industry: An update on monitoring and disinfection techniques of air

The Bad and the Good—Microorganisms in Cultural Heritage Environments—An Update on Biodeterioration and Biotreatment Approaches

Bioaerosol Size Effect in COVID-19 Transmission

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