生物气溶胶雾化器对大肠杆菌活性影响的评价

doi:10.3969/j.issn.1000-1158.2022.05.21

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Abstract The research of bioaerosol relies on a stable and reliable atomization process. The performances of different aerosol generators are evaluated from the aspects of particle concentration, particle size distribution, bacterial culturability and cell membrane damage, and the influence of inlet flow is discussed.The results show that the mechanical stress in the process of aerosol generation seriously damages the integrity of the cell membrane, which reduces the cultivable rate of bacteria by more than 90%, and with the increase of air flow, the proportion of cell debris increases, and the cell membrane damage becomes more serious. Since the research of bioaerosol not only requires high concentrations of microorganisms, but also ensures the integrity and cultivability of cells, the above study will provide a basis for the performance evaluation and selection of bioaerosol generators.

Key words： metrology bioaerosol atomizer real-time quantitative PCR cell membrane integrity bacterial culturability

Received: 19 July 2021 Published: 18 May 2022

PACS:

TB99

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	Articles by authors
	TIAN Ying
	ZHANG Guo-cheng
	LI Jing-jing
	LIU Jia-qi
	PAN Yi-ting
	WU Dan
	SHEN Shang-yi
	HUO Sheng-wei

Cite this article:

TIAN Ying,ZHANG Guo-cheng,LI Jing-jing, et al. Evaluation of the Influence of Bioaerosol Atomizers on the Activity of E.coli[J]. Acta Metrologica Sinica, 2022, 43(5): 696-700.

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http://jlxb.china-csm.org:81/Jwk_jlxb/EN/10.3969/j.issn.1000-1158.2022.05.21 OR http://jlxb.china-csm.org:81/Jwk_jlxb/EN/Y2022/V43/I5/696

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