The resulting lipid yields after drying and cell disruption are presented
in Fig. 1. Lipid yields significantly (P < 0.05) varied with different
treatments and ranged from 8.78 ± 2.15% for sun dried
samples assisted with cell disruption by osmotic shock with 10%
NaCl solution, to 21.43 ± 1.52% for freeze dried samples with
microwave assisted cell disruption. Mata et al. (2010) have also
reported similar lipid yields for Scenedesmus sp. Microwave
assisted extraction resulted in significantly (P < 0.05) higher lipid
yields for all dried samples in comparison to other selected methods,
and osmotic shock with 10% NaCl solution resulted in lowest
lipid yields. In addition, sun dried samples had the significantly
lower (P < 0.05) lipid yields than all the selected drying techniques