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Journal ArticleDOI

Comparison of several methods for effective lipid extraction from microalgae

01 Jan 2010-Bioresource Technology (Elsevier)-Vol. 101, Iss: 1, pp 575-577
TL;DR: The microwave oven method was identified as the most simple, easy, and effective for lipid extraction from microalgae.
About: This article is published in Bioresource Technology.The article was published on 2010-01-01. It has received 1244 citations till now. The article focuses on the topics: Sonication & Botryococcus.
Citations
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Journal ArticleDOI
TL;DR: The outcome confirms the potential of microalgae as an energy source but highlights the imperative necessity of decreasing the energy and fertilizer consumption and control of nitrogen stress during the culture and optimization of wet extraction seem to be valuable options.
Abstract: This paper provides an analysis of the potential environmental impacts of biodiesel production from microalgae. High production yields of microalgae have called forth interest of economic and scientific actors but it is still unclear whether the production of biodiesel is environmentally interesting and which transformation steps need further adjustment and optimization. A comparative LCA study of a virtual facility has been undertaken to assess the energetic balance and the potential environmental impacts of the whole process chain, from the biomass production to the biodiesel combustion. Two different culture conditions, nominal fertilizing or nitrogen starvation, as well as two different extraction options, dry or wet extraction, have been tested. The best scenario has been compared to first generation biodiesel and oil diesel. The outcome confirms the potential of microalgae as an energy source but highlights the imperative necessity of decreasing the energy and fertilizer consumption. Therefore contr...

1,372 citations

Journal ArticleDOI
TL;DR: In this article, the main advantages of using microalgae for biodiesel production are described in comparison with other available feedstocks, primarily palm oil, in terms of food security and environmental impact compared to palm oil.
Abstract: Of the three generations of biodiesel feedstocks described in this paper, food crops, non-food crops and microalgae-derived biodiesel, it was found that the third generation, microalgae, is the only source that can be sustainably developed in the future. Microalgae can be converted directly into energy, such as biodiesel, and therefore appear to be a promising source of renewable energy. This paper presents a comparison between the use of microalgae and palm oil as biodiesel feedstocks. It was found that microalgae are the more sustainable source of biodiesel in terms of food security and environmental impact compared to palm oil. The inefficiency and unsustainability of the use of food crops as a biodiesel source have increased interest in the development of microalgae species to be used as a renewable energy source. In this paper, the main advantages of using microalgae for biodiesel production are described in comparison with other available feedstocks, primarily palm oil.

951 citations


Cites methods from "Comparison of several methods for e..."

  • ...[81] used methods including autoclaving, bead-beating, microwave, sonication and a 10% NaCl solution to identify the most effective method for lipid extraction from Botryococcus sp....

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Journal ArticleDOI
TL;DR: This study examines the principles involved in lipid extraction from microalgal cells, a crucial downstream processing step in the production of microAlgal biodiesel, and analyzes the different technological options currently available for laboratory-scale microalGal lipid extraction, with a primary focus on the prospect of organic solvent and supercritical fluid extraction.

905 citations


Cites background or methods from "Comparison of several methods for e..."

  • ...When intact cells are disintegrated during cell disruption, intracellular lipids are liberated from the cellular structures and released into the surrounding medium (Chisti and Moo-Young, 1986; Gouveia et al., 2007; Lee et al., 2010; Mendes-Pinto et al., 2001)....

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  • ...Post-dewatering, the concentrate undergoes pre-treatment process aimed at enhancing the efficiency of subsequent lipid extraction (Lee et al., 1998, 2010)....

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  • ...In a different study by Lee et al. (2010), the effect of prior cell disruption on lipid extraction from three microalgal species (Botryococcus sp., Chlorella vulgaris, and Scenedesmus sp.) was evaluated (Fig....

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Journal ArticleDOI
TL;DR: The practical problems that are facing the microalgae biofuel industry will be depicted, covering upstream to downstream activities by accessing the latest research reports and critical data analysis and several interlink solutions to the problems will be suggested with the purpose to revolutionize the entire microAlgae Biofuel industry towards long-term sustainability.

829 citations

Journal ArticleDOI
TL;DR: The results confirm the competitiveness of microalgae-based biofuels and highlight the necessity of recycling harvested water and using sea/wastewater as water source and the need of all the nutrients except phosphate.

788 citations


Cites background from "Comparison of several methods for e..."

  • ...vulgaris extraction is approximately 70% (Lee et al., 2010)....

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  • ...In particular, the yield for C. vulgaris extraction is approximately 70% (Lee et al., 2010)....

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References
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Journal ArticleDOI
E. G. Bligh1, W. J. Dyer1
TL;DR: The lipid decomposition studies in frozen fish have led to the development of a simple and rapid method for the extraction and purification of lipids from biological materials that has been applied to fish muscle and may easily be adapted to use with other tissues.
Abstract: Lipid decomposition studies in frozen fish have led to the development of a simple and rapid method for the extraction and purification of lipids from biological materials. The entire procedure can...

46,099 citations

Journal ArticleDOI
TL;DR: Revisions are designed to permit the generic identification of cultures, often difficult through use of the field-based system of phycological classification, and are both constant and readily determinable in cultured material.
Abstract: Summary: On the basis of a comparative study of 178 strains of cyanobacteria, representative of this group of prokaryotes, revised definitions of many genera are proposed. Revisions are designed to permit the generic identification of cultures, often difficult through use of the field-based system of phycological classification. The differential characters proposed are both constant and readily determinable in cultured material. The 22 genera recognized are placed in five sections, each distinguished by a particular pattern of structure and development. Generic descriptions are accompanied by strain histories, brief accounts of strain properties, and illustrations; one or more reference strains are proposed for each genus. The collection on which this analysis was based has been deposited in the American Type Culture Collection, where strains will be listed under the generic designations proposed here.

7,107 citations


"Comparison of several methods for e..." refers methods in this paper

  • ...L jars in a BG11 medium (Rippka et al., 1979) with 0.3 v/v/m air and 150 lmol m 2 s l....

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  • ...The microalgae were incubated in separate 9-L jars in a BG11 medium (Rippka et al., 1979) with 0....

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Journal ArticleDOI
TL;DR: In this paper, structural features that influence the physical and fuel properties of a fatty ester molecule are chain length, degree of unsaturation, and branching of the chain, as well as the structural features of the fatty acid and the alcohol moieties.

2,145 citations


"Comparison of several methods for e..." refers background in this paper

  • ...As such, a higher oleic acid content increases the oxidative stability for longer storage (Knothe, 2005) and decreases the CFPP for use in cold regions (Stournas et al....

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  • ...As such, a higher oleic acid content increases the oxidative stability for longer storage (Knothe, 2005) and decreases the CFPP for use in cold re- gions (Stournas et al., 1995)....

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Journal ArticleDOI
Yusuf Chisti1
TL;DR: Biodiesel from microalgae seems to be the only renewable biofuel that has the potential to completely displace petroleum-derived transport fuels without adversely affecting supply of food and other crop products.

2,065 citations


"Comparison of several methods for e..." refers background in this paper

  • ...In particular, biodiesel has two main advantages, the mitigation of carbon dioxide and as a substitute for petroleum (Chisti, 2008)....

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