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Scanning electron microscopy visualization of different isolates, (a) E. faecalis ASO44; (b) E. faecium ASO292; (c) L. delbrueckii ASO100; (d) L. lactis ASO26; (e) L. plantarum ASO50; (f) L. case ASO53; (g) L. rhamnosus ASO20; (h) L. gasseri ASO25 (i) L. paracasei ASO32. Images were captured at an excitation voltage of 20 K.V., at 5000 magnification with a working distance of 13.7–14.2 mm.
