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. 2023 Mar 29;11(4):873. doi: 10.3390/microorganisms11040873

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© 2023 by the authors.

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/).

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Transmission electron micrographs of non-treated B. cereus (A), E. aerogenes (C) and C. tropicalis (E) at 20,000×, 20,000× and 6000× magnification, respectively. The effect of 15:20% (w/v) salt/acid solution for 10 min on the microbial structure of B. cereus (B), A. aerogenes (D) and C. tropicalis (F) at 20,000×, 20,000× and 6000× magnification, respectively. Holes on cell surface (arrow #1, arrow #2 and arrow #3) and separation of cell membrane from cell wall (arrow #4).