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Title: Efficient lipid extraction and quantification of fatty acids from algal biomass using accelerated solvent extraction (ASE)

Journal Article · · RSC Advances
DOI:https://doi.org/10.1039/c5ra23519g· OSTI ID:1485584
 [1];  [2];  [2];  [2];  [2];  [3]
  1. Nanjing Forestry Univ., Nanjing (China). College of Chemical Engineering, Jiangsu Key Lab. of Biomass-based Green Fuels and Chemicals; Johns Hopkins Univ., Baltimore, MD (United States). Department of Chemical & Biomolecular Engineering
  2. Johns Hopkins Univ., Baltimore, MD (United States). Department of Chemical & Biomolecular Engineering
  3. Nanjing Forestry Univ., Nanjing (China). College of Chemical Engineering, Jiangsu Key Lab. of Biomass-based Green Fuels and Chemicals

Accelerated solvent extraction (ASE), a commercially available pressurized fluid extraction technique and conventional manual extraction were compared to identify the most effective chloroform–methanol extraction method for algal lipids. Using optimal ASE operating conditions (methanol/chloroform = 2 : 1 by vol, 100 °C, static time of 5 min, and four static cycles), the lipid contents of Chlorella vulgaris, C. sorokiniana, C. zofingiensis and Nannochloropsis gaditana were 27.5%, 25.8%, 15.2%, 29.8% of dry biomass, respectively. Here, the total fatty acid methyl ester (FAME) content of dry biomass from ASE extraction was found to be 1.3–2.7 fold higher than that from conventional manual extract from these species, demonstrating that ASE exhibited significant improvement for lipid and FAME recovery. Furthermore, ASE showed the capacity to extract all-cis-5,8,11,14,17-eicosapentaenoic acid (EPA) as 3.0% of dry biomass from Nannochloropsis gaditana suggesting that ASE has the potential to obtain polyunsaturated fatty acids (PUFAs) as well.

Research Organization:
Johns Hopkins Univ., Baltimore, MD (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
SC0012658
OSTI ID:
1485584
Journal Information:
RSC Advances, Vol. 6, Issue 35; ISSN 2046-2069
Publisher:
Royal Society of ChemistryCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 23 works
Citation information provided by
Web of Science

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Cited By (3)

Advances in microalgal lipid extraction for biofuel production: a review: Microalgal lipid extraction for biofuel production journal August 2018
Microalgae cultivation using palm oil mill effluent as growth medium for lipid production with the effect of CO2 supply and light intensity journal November 2019
Determination of Microalgal Lipid Content and Fatty Acid for Biofuel Production journal January 2018

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