Fig. 9

Reflectance curves of L. reuteri DSM 17938 related to membrane vesicles of the planktonic phenotype (pMVs; Panel A), membrane vesicles of biofilm phenotype (bMVs; Panel B) and control samples (PBS; Panel C) after 0 (t0, green), 2 (t2weeks, red) and 4 (t4weeks, ocher) weeks of storage at 4 °C. The measurements were carried out at least in triplicate, and the results are reported as mean values standard deviation.