Optimization of Subcritical Water Extraction (SWE) of Lipid and Eicosapentaenoic Acid (EPA) from Nannochloropsis gaditana

Figure 4

SEM images of (a) untreated microalgae and extracted microalgae at 15 minutes and 75 g algae/L with different temperatures of (b) 156.1°C, (c) 215.0°C, and (d) 273.9°C.

(a)

(b)

(c)

(d)