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Scanning electron microscopy (SEM) images for control, ultrasonicated (US) and spray-dried (SD) CWP samples. Keynotes: a) Control (freeze-dried CWP); b) sonicated for 5 min; c) sonicated for 10 min; d) sonicated for 15 min; e) SD at 170 °C; f): SD at 185 °C; g) SD at 200 °C.
