Efficacy of drying and cell disruption techniques on lipid recovery from microalgae for biodiesel production

Guldhe, Abhishek; Singh, Bhaskar; Rawat, Ismail; Ramluckan, Krishan; Bux, Faizal

doi:10.1016/j.fuel.2014.02.059

Cited by 209 publications

(80 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Guldhe et al (2014) has shown that there was no significant differences in the lipid extraction yield of Scenedesmus sp. dried by three techniques: freeze-drying, oven-drying, and sun-drying.…”

Section: Microalgae Culture and Their Major Biochemical Compositionsmentioning

confidence: 97%

Surfactant-assisted direct biodiesel production from wet Nannochloropsis occulata by in situ transesterification/reactive extraction

2016

View full text Add to dashboard Cite

Please cite this article as: Salam K.A., Velasquez-Orta S.B., Harvey A.P. Effect Surfactant-assisted direct biodiesel production from wet Nannochloropsis occulata by in situ transesterification/reactive extraction. Biofuel Research Journal 9 (2016) HIGHLIGHTSSurfactant assisted in situ transesterification of wet algae was studied.A surfactant catalyst ("ZDS") produced high yields in Nannochloropsis occulata.Inclusion of SDS in increased FAME production in the wet algae.The process was not adversely affected by water in the algae up to 20%. This article reports an in situ transesterification/reactive extraction of Nannochloropsis occulata for fatty acid methyl ester (FAME) production using H2SO4, sodium dodecyl sulphate (SDS) plus H2SO4 and zirconium dodecyl sulphate (ZDS). A maximum 67 % FAME yield was produced by ZDS. Effect of inclusion of sodium dodecyl sulphate (SDS) in H2SO4 for FAME enhancement and water tolerance was also studied by hydrating the algae with 10 % -30 % distilled water (w/w) dry algae. Treatment with SDS in H2SO4 increases the FAME production rate and water tolerance of the process. Inclusion of SDS in H2SO4 produced a maximum 98.3 % FAME yield at 20 % moisture in the algae. The FAME concentration began to diminish only at 30 % moisture in the algae. Furthermore, the presence of a small amount of water in the biomass or methanol increased the lipid extraction efficiency, improving the FAME yield, rather than inhibiting the reaction. ARTICLE INFO ABSTRACT

show abstract

Section: Microalgae Culture and Their Major Biochemical Compositionsmentioning

confidence: 97%

Surfactant-assisted direct biodiesel production from wet Nannochloropsis occulata by in situ transesterification/reactive extraction

2016

View full text Add to dashboard Cite

show abstract

“…It ensures that there is no loss of lipids, as they are volatile due to evaporation [61]. In this method, the wet biomass is frozen at −84°C under vacuum to crystalize the intracellular water [62]. After freeze-drying, cell can be directly lysed by allowing the ice crystals to expand by thawing.…”

Section: Freeze-drying Methodsmentioning

confidence: 99%

An Insight on Algal Cell Disruption for Biodiesel Production

Aarthy

Smita

Turkar

et al. 2018

Asian J Pharm Clin Res

View full text Add to dashboard Cite

Objective: This review article deals with the effect that various cell disruption techniques have on the efficiency of lipid extraction. We have reviewed existing algal cell disruption techniques that aid the biodiesel production process.Methods: Current rise in demand for energy has led the researcher to focus on the production of sustainable fuels, among which biodiesel has received greater attention. This is due to its larger lipid content, higher growth rate, larger biomass production, and lower land use. Extraction of lipid from algae (micro and macro) for the production of biodiesel involves numerous downstream processing steps, of which cell wall disruption is a crucial step. Bead milling, high-pressure homogenization, ultra-sonication, freeze-drying, acid treatment, and enzymatic lysis are some methods of cell disruption. The cell disruption technique needs to be optimized based on the structure and biochemical composition of algae. Result:The lipid extraction efficiency varies depending on the algal species and the cell disruption technique used. Conclusion:In-depth research and development of new techniques are required to further enhance the cell disruption of the algal cell wall for the enhanced recovery of lipids. In addition, the operating costs and energy consumption should also be optimized for the cost-effective recovery.

show abstract

“…Previous studies indicated that microwave radiation is an excellent tool for disrupting the cells of microalgae (De Souza Silva et al, 2014;Guldhe et al, 2014;Prabakaran and Ravindran, 2011), although most of the related studied reported using a high microwave power, low microalgae concentration, and small amount of the sample, thus making them infeasible for commercial applications. In this study, however, the microwave-assisted cell disruption was performed at a low power (only 350 W), as well as a relatively high microalgae concentration (31.3 wt%) and sample loading (100 g), and these conditions have the potential for large-scale operations.…”

Section: Pretreatment Of Microalgal Biomass and Wet Oil Extractionmentioning

confidence: 99%

Biodiesel production from wet microalgae feedstock using sequential wet extraction/transesterification and direct transesterification processes

Chen

Huang

et al. 2015

Bioresource Technology

107

View full text Add to dashboard Cite

Efficacy of drying and cell disruption techniques on lipid recovery from microalgae for biodiesel production

Cited by 209 publications

References 30 publications

Surfactant-assisted direct biodiesel production from wet Nannochloropsis occulata by in situ transesterification/reactive extraction

Surfactant-assisted direct biodiesel production from wet Nannochloropsis occulata by in situ transesterification/reactive extraction

An Insight on Algal Cell Disruption for Biodiesel Production

Biodiesel production from wet microalgae feedstock using sequential wet extraction/transesterification and direct transesterification processes

Contact Info

Product

Resources

About