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. 2021 Mar 13;10(3):611. doi: 10.3390/foods10030611

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© 2021 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 (http://creativecommons.org/licenses/by/4.0/).

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M. lacticum (A) and S. capitis (B) surface coverage (%) at 24, 48, 144, and 192 h through cell staining with SYTO^TM 9 and propidium iodide (PI) on PTFE and SS coupons. The proportion of viable (white bars; SYTO^TM 9) and dead cells (grey bars; PI) is indicated. For image analysis, an area of 260 mm² was investigated.