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. 2023 Jul 26;6(8):3103–3116. doi: 10.1021/acsabm.3c00214

Figure 3.

Figure 3

Water response of the composite fibers. (a) Weight loss (%) of the ZPC0 and ZPC0CL microfibers up to 7 days of incubation in PBS alone or in PBS supplemented with Protease XIV from Streptomyces griseus (≥3.5 units/mg). (b) SEM images of ZPC0 and ZPC0CL microfibers after 1 and 7 days of incubation under the conditions previously described. Yellow arrows indicate the Protease activity on the protein component of the sample (visible as nanopores). (c) Swelling capacity (%) of the ZPC0 and ZPC0CL microfibers up to 7 days of incubation in PBS alone or in PBS supplemented with Protease XIV from Streptomyces griseus. On day 7, it was not possible to record the swelling of the ZPC0CL sample in PBS + Enzyme due to the enzymatic effect. (d) SEM images of the ZPC0 and ZPC0CL cross-sections. White arrows indicate the holes generated after pectin cross-linking. Asterisks represent statistical significance (*p < 0.05, **p < 0.01, and ***p < 0.001).