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聚醚砜（PES）过滤器可提高 spp. 的回收率，并增强对水样中干扰微生物的选择性。

Polyethersulfone (PES) Filters Improve the Recovery of spp. and Enhance Selectivity against Interfering Microorganisms in Water Samples.

作者信息

Casino Pablo, López Asunción, Peiró Sara, Rios Santiago, Porta Aldous, Agustí Gemma, Terlevich Daniela, Asensio Daniel, Marqués Ana María, Piqué Núria

机构信息

Department of Quality Control, Reactivos para Diagnóstico, S.L. (RPD), Josep Tura, 9H, Polígon Industrial Mas d'en Cisa, Sentmenat, 08181 Barcelona, Catalonia, Spain.

Microbiology Section, Department of Biology, Healthcare and Environment, Faculty of Pharmacy and Food Sciences, Universitat de Barcelona (UB), Av. Joan XXIII, 27-31, 08028 Barcelona, Catalonia, Spain.

出版信息

Polymers (Basel). 2023 Jun 13;15(12):2670. doi: 10.3390/polym15122670.

DOI:10.3390/polym15122670
PMID:37376316
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC10305515/
Abstract

In the analysis of water samples, the type of filtration membrane material can influence the recovery of species, although this issue has been poorly investigated. Filtration membranes (0.45 µm) from different materials and manufacturers (numbered as 1, 2, 3, 4, and 5) were compared: mixed cellulose esters (MCEs), nitrocellulose (NC), and polyethersulfone (PES). After membrane filtration of samples, filters were placed directly onto GVPC agar and incubated at 36 ± 2 °C. The highest mean counts of colony-forming units and colony sizes for and were obtained with PES filters ( < 0.001). All membranes placed on GVPC agar totally inhibited and ATCC 19443 and ATCC 29212, whereas only the PES filter from manufacturer 3 (3-PES) totally inhibited . PES membrane performance also differed according to the manufacturer, with 3-PES providing the best productivity and selectivity. In real water samples, 3-PES also produced a higher recovery and better inhibition of interfering microorganisms. These results support the use of PES membranes in methods where the filter is placed directly on the culture media and not only in procedures where membrane filtration is followed by a washing step (according to ISO 11731:2017).

摘要

在水样分析中，过滤膜材料的类型会影响菌种的回收率，尽管这个问题尚未得到充分研究。对来自不同材料和制造商（编号为1、2、3、4和5）的过滤膜（0.45 µm）进行了比较：混合纤维素酯（MCE）、硝酸纤维素（NC）和聚醚砜（PES）。样品经过膜过滤后，将滤膜直接放置在GVPC琼脂上，并在36±2°C下培养。使用PES滤膜获得了最高的菌落形成单位平均计数和 及 的菌落大小（<0.001）。放置在GVPC琼脂上的所有滤膜完全抑制了 及ATCC 19443和ATCC 29212，而只有制造商3的PES滤膜（3-PES）完全抑制了 。PES膜的性能也因制造商而异，3-PES具有最佳的生产率和选择性。在实际水样中，3-PES也能实现更高的 回收率，并能更好地抑制干扰微生物。这些结果支持在将滤膜直接放置在培养基上的方法中使用PES膜，而不仅适用于按照ISO 11731:2017在膜过滤后进行洗涤步骤的程序。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/06b9/10305515/82ec87f0439a/polymers-15-02670-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/06b9/10305515/4c84f84f8170/polymers-15-02670-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/06b9/10305515/ddcd3791a74b/polymers-15-02670-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/06b9/10305515/15f591144f1d/polymers-15-02670-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/06b9/10305515/d9a1708861c3/polymers-15-02670-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/06b9/10305515/dc245ed4d4c5/polymers-15-02670-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/06b9/10305515/7d1b34c5ae3a/polymers-15-02670-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/06b9/10305515/a79ebdd774ab/polymers-15-02670-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/06b9/10305515/82ec87f0439a/polymers-15-02670-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/06b9/10305515/4c84f84f8170/polymers-15-02670-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/06b9/10305515/ddcd3791a74b/polymers-15-02670-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/06b9/10305515/15f591144f1d/polymers-15-02670-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/06b9/10305515/d9a1708861c3/polymers-15-02670-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/06b9/10305515/dc245ed4d4c5/polymers-15-02670-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/06b9/10305515/7d1b34c5ae3a/polymers-15-02670-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/06b9/10305515/a79ebdd774ab/polymers-15-02670-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/06b9/10305515/82ec87f0439a/polymers-15-02670-g008.jpg

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本文引用的文献

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Microbiol Spectr. 2022 Apr 27;10(2):e0240121. doi: 10.1128/spectrum.02401-21. Epub 2022 Mar 22.
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Heliyon. 2021 Sep 9;7(9):e07961. doi: 10.1016/j.heliyon.2021.e07961. eCollection 2021 Sep.
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Twenty years of waterborne and related disease reports in Florida, USA.
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One Health. 2021 Jul 20;13:100294. doi: 10.1016/j.onehlt.2021.100294. eCollection 2021 Dec.
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The impact of pipeline changes and temperature increase in a hospital historically colonised with Legionella.医院中军团菌定植史的管道变化和温度升高的影响。
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