and reaction time on biodiesel production directly from wet microalgae biomass are shown in Figure 2. It suggested that for the samples investigated at 90 ° C, asymptotic biodiesel conversion values were not reached within the time boundaries of this study. When in situ transesterification process was carried out at 120° C
, the highest biodiesel yield of 86.8% was obtained within 180 min (Figure 2), the FAME contentwasabout92%(Tabl e 2). The biodiesel yield was slightly decreased to 85.3% and 84.7% when the reaction time increased to 240 and 300 min, respectively (Figure 2). The FAME contents of biodiesels produced at reaction times of 240 and 300 min under 120 ° C were all about 90%(Table 2)