Subcritical Water Technology for Enhanced Extraction of Biochemical Compounds from Chlorella vulgaris

Figure 3

SEM images of nontreated (a and b) and SWE treated (c and d) C. vulgaris biomass samples. The images were captured at the same voltage of 20 kV and multiple resolutions of 7.2 mm × 1.00 kSE (a), 7.2 mm × 3.00 kSE (b), 7.3 mm × 1.00 kSE (c), and 7.3 mm × 3.00 kSE (d). SWE treatment occurred at 215°C for 6 min using 28 wt.% microalgal biomass with particulate size of 180 μm.

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