Microalgae (Nannochloropsis salina) biomass to lactic acid and lipid

Prospects for methane production and nutrient recycling from lipid extracted residues and whole Nannochloropsis salina using anaerobic digestion

“…Indeed, b-glucosidases can enhance conversion of cellobiose into monosaccharides and prevent their inhibitive impact on cellulases [66]. Also, xylose may represent a significant fraction in the N. salina polysaccharides, accounting for up to 25% of the total glucose and xylose yield during dilute acid hydrolysis of N. salina [67]. However, nearly equal final sugar levels were observed at both doses of cellulase complex by the conclusion of the incubation.…”

Joint production of biodiesel and bioethanol from filamentous oleaginous microalgae Tribonema sp.

“…1 also showed the sugar contents and sugar yield began to decrease when the dilute acid concentration was over 11%. It might because high acid concentration causes side reactions leading to the degradation of glucose and xylose to furfural and HMF, thereby reducing sugar yield (Talukder et al, 2012). Considering the need to minimize the dosage of acid, sulfuric acid concentration of 3.0% (v/v) seems to be preferable in the acid hydrolysis, which was also recommended by Lee et al (2011).…”

“…In order to realize biodiesel conversion and bioethanol fermentation, microalgae biomass needs to be processed in order to extract lipid and release sugar (Talukder et al, 2012). Ultrasonication method and cycled freezing -thawing method have been widely used to break the cell wall of microalgae for lipid extraction (Huang et al, 2014;Silva et al, 2014).…”

Cultivation of Chlorella vulgaris JSC-6 with swine wastewater for simultaneous nutrient/COD removal and carbohydrate production

“…Therefore, using nitrogen-abundant swine wastewater to cultivate carbohydrate-rich microalgae, instead of lipid-rich ones, may be a more reasonable approach when considering the requirement of strict nitrogen starvation conditions needed for lipid accumulation in microalgae. This study thus used an isolated microalgal strain able to accumulate a high content of carbohydrates for the reduction of nutrients and COD in the swine wastewater, and the obtained microalgal biomass may be used as a feedstock for microbial fermentation to produce biofuels (e.g., ethanol, butanol) (Castro et al, 2015;Ho et al, 2013) and chemicals (e.g., lactic acid, butyric acid) (Song et al, 2011;Talukder et al, 2012).…”