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The Effects of Ventilation, Humidity, and Temperature on Bacterial Growth and Bacterial Genera Distribution
Background: Bacteria are readily nourished in airtight environments with high humidity, such as storage cabinets, clothing closets, and corners, where ventilation is normally low and humidity is high. Objectives: We characterized the role of humidity and ventilation in bacterial growth and genus dis...
Autores principales: | , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9691097/ https://www.ncbi.nlm.nih.gov/pubmed/36430064 http://dx.doi.org/10.3390/ijerph192215345 |
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author | Qiu, Yujia Zhou, Yan Chang, Yanfen Liang, Xinyue Zhang, Hui Lin, Xiaorui Qing, Ke Zhou, Xiaojie Luo, Ziqiang |
author_facet | Qiu, Yujia Zhou, Yan Chang, Yanfen Liang, Xinyue Zhang, Hui Lin, Xiaorui Qing, Ke Zhou, Xiaojie Luo, Ziqiang |
author_sort | Qiu, Yujia |
collection | PubMed |
description | Background: Bacteria are readily nourished in airtight environments with high humidity, such as storage cabinets, clothing closets, and corners, where ventilation is normally low and humidity is high. Objectives: We characterized the role of humidity and ventilation in bacterial growth and genus distribution at different temperatures (26 °C and 34 °C). Methods: Fresh pork, which was used as the substrate for bacterial culture, was placed in storage cabinets. Bacterial growth and genera distribution on the surface of pork placed in a storage cabinet under different temperatures (26 °C and 34 °C); relative humidity levels (RH: 50%, 70%, 90%); and ventilation conditions (no ventilation and low, medium, and high levels of ventilation) were assessed by rDNA sequencing. Results: Increased ventilation and reduced humidity significantly decreased bacterial growth at 26 °C and 34 °C. The contribution of increased ventilation to the reduction in bacterial growth exceeded that of decreased humidity. Ventilation had the greatest effect on reducing bacterial growth compared to the unventilated conditions at 70% RH. At 34 °C, medium and high levels of ventilation were required to reduce bacterial growth. High temperatures greatly increased bacterial growth, but ventilation could reduce the degree of this increase. |
format | Online Article Text |
id | pubmed-9691097 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-96910972022-11-25 The Effects of Ventilation, Humidity, and Temperature on Bacterial Growth and Bacterial Genera Distribution Qiu, Yujia Zhou, Yan Chang, Yanfen Liang, Xinyue Zhang, Hui Lin, Xiaorui Qing, Ke Zhou, Xiaojie Luo, Ziqiang Int J Environ Res Public Health Article Background: Bacteria are readily nourished in airtight environments with high humidity, such as storage cabinets, clothing closets, and corners, where ventilation is normally low and humidity is high. Objectives: We characterized the role of humidity and ventilation in bacterial growth and genus distribution at different temperatures (26 °C and 34 °C). Methods: Fresh pork, which was used as the substrate for bacterial culture, was placed in storage cabinets. Bacterial growth and genera distribution on the surface of pork placed in a storage cabinet under different temperatures (26 °C and 34 °C); relative humidity levels (RH: 50%, 70%, 90%); and ventilation conditions (no ventilation and low, medium, and high levels of ventilation) were assessed by rDNA sequencing. Results: Increased ventilation and reduced humidity significantly decreased bacterial growth at 26 °C and 34 °C. The contribution of increased ventilation to the reduction in bacterial growth exceeded that of decreased humidity. Ventilation had the greatest effect on reducing bacterial growth compared to the unventilated conditions at 70% RH. At 34 °C, medium and high levels of ventilation were required to reduce bacterial growth. High temperatures greatly increased bacterial growth, but ventilation could reduce the degree of this increase. MDPI 2022-11-20 /pmc/articles/PMC9691097/ /pubmed/36430064 http://dx.doi.org/10.3390/ijerph192215345 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Qiu, Yujia Zhou, Yan Chang, Yanfen Liang, Xinyue Zhang, Hui Lin, Xiaorui Qing, Ke Zhou, Xiaojie Luo, Ziqiang The Effects of Ventilation, Humidity, and Temperature on Bacterial Growth and Bacterial Genera Distribution |
title | The Effects of Ventilation, Humidity, and Temperature on Bacterial Growth and Bacterial Genera Distribution |
title_full | The Effects of Ventilation, Humidity, and Temperature on Bacterial Growth and Bacterial Genera Distribution |
title_fullStr | The Effects of Ventilation, Humidity, and Temperature on Bacterial Growth and Bacterial Genera Distribution |
title_full_unstemmed | The Effects of Ventilation, Humidity, and Temperature on Bacterial Growth and Bacterial Genera Distribution |
title_short | The Effects of Ventilation, Humidity, and Temperature on Bacterial Growth and Bacterial Genera Distribution |
title_sort | effects of ventilation, humidity, and temperature on bacterial growth and bacterial genera distribution |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9691097/ https://www.ncbi.nlm.nih.gov/pubmed/36430064 http://dx.doi.org/10.3390/ijerph192215345 |
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