Production of biodiesel from carbon sources of macroalgae, Laminaria japonica

Bioconversion of volatile fatty acids from macroalgae fermentation into microbial lipids by oleaginous yeast

“…In this study, C18:1 occupied most percentage of the composition, followed by C18:0, C16:0 and C18:2. This composition was highly identical to the result of our previous research [36].…”

“…The degradation of single cell oil has been extensively studied in oleaginous yeasts [35]. In our previous research, lipid turnover was also detected in the lipid producing process with C. cuvatus using VFAs and mannitol successively as carbon sources [36]. In general, oleaginous yeasts consumed their intracellular lipids which were previously accumulated, when carbon sources were exhausted or the uptake rate of the carbon sources decreased.…”

Retracted Article: Oleaginous yeast-based production of microbial oil from volatile fatty acids obtained by anaerobic digestion of red algae (Gelidium amansii)

“…Nonetheless, similar results have been previously reported with the authors concluding that selective production of VFAs is possible by preferentially altering pH [23]. Moreover, it has also been shown that the rate of VFA production can also be controlled by altering pH and that it reaches a maximum around pH=7.0 [24]. It is important to mention here that the CSTR used in this study was a VFA producing system that could continuously produce acetate, butyrate and propionate using G. amansii as its sole carbon source without any additional nutrients.…”

“…Such degradation of single cell oil has been extensively studied in oleaginous yeasts [25]. Previous research indicates that such lipid turnover also occurs during lipid production when C. curvatus successfully uses VFAs as the only carbon source [24].…”

Marine brown algae: A conundrum answer for sustainable biofuels production

“…The rates of LICF in brown algae shows a tendency of higher values (up to 9.6 μmol 14 C g À 1 FW h À 1 ) than terrestrial plants, accounting for up to 48% of the photosynthetic fixation [13]. These pre-existing results suggest that the maximum energy yield of brown algae (4 45%) over a growing season can be greater than those of most terrestrial plants (e.g., 30-35% for energy crops and 20-25% for lignocellulosic biomass) as a result of their high biomass productivity [14]. The photosynthates (carbon-containing products of photosynthesis) of brown algae would not be glucose and starch as general plants, but rather glucose and mannitol are polymerized together as laminarin [9].…”