Synthesis of Biodiesel/Bio-Oil from Microalgae - Biotechnological Applications of Microalgae - page 106

TABLE 8.1
Comparison of the FAME Ester Content and Caloriic Value of the Biodiesel and Bio-oil from Microalgae

Method for
Extraction of Oil

HHV/Caloriic
Value Microalgae Process Product FAME Content Ref.

Unidentiied Using hexane as solvent Transesteriication Biodiesel Not reported 40 MJ kg −1 11

Chlorella vulgaris (ESP 31) Sonication to disrupt the cell wall

of microalgae and then vigorously
mixing the disrupted cell with
biphasic solvent of chloroform &
methanol

Transesteriication Biodiesel 72.1% (from extracted

microalgal oil) 97.25%
(upon direct disruption of
algal biomass)

— 13

Chlorella sorokiniana Two-step sequential hydrothermal

liquefaction

— Bio-oil — 40.8 MJ kg −1 22

Sargassum patens C. Agardh Hydrothermal liquefaction — Bio-oil — 27.1 MJ kg −1 23

Spirulina /HDPE Co-liquefaction — Bio-oil — 48.35 MJ kg −1 24

Chlorella vulgaris Microwave-assisted pyrolysis — Bio-oil — 21.88 MJ kg −1a 25

a Low caloriic value reported that of microalgae Chlorella vulgaris.