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Lipid content and fatty acid composition of green algae Scenedesmus obliquus grown in a constant cell density apparatusThe lipids of alga Scenedesmus obliquus grown under controlled conditions were separated and fractionated by column and thin-layer chromatography, and fatty acid composition of each lipid component was studied by gas-liquid chromatography (GLC). Total lipids were 11.17%, and neutral lipid, glycolipid and phospholipid fractions were 7.24%, 2.45% and 1.48% on a dry weight basis, respectively. The major neutral lipids were diglycerides, triglycerides, free sterols, hydrocarbons and sterol esters. The glycolipids were: monogalactosyl diglyceride, digalactosyl diglyceride, esterified sterol glycoside, and sterol glycoside. The phospholipids included: phosphatidyl choline, phosphatidyl glycerol and phosphatidyl ethanolamine. Fourteen fatty acids were identified in the four lipid fractions by GLC. The main fatty acids were C18:2, C16:0, C18:3(alpha), C18:1, C16:3, C16:1, and C16:4. Total unsaturated fatty acid and essential fatty acid compositions of the total algal lipids were 80% and 38%, respectively.
Document ID
20040089622
Acquisition Source
Ames Research Center
Document Type
Reprint (Version printed in journal)
Authors
Choi, K. J.
(Massachusetts Institute of Technology Cambridge 02139, United States)
Nakhost, Z.
Barzana, E.
Karel, M.
Date Acquired
August 21, 2013
Publication Date
January 1, 1987
Publication Information
Publication: Food biotechnology
Volume: 1
Issue: 1
ISSN: 0890-5436
Subject Category
Life Sciences (General)
Funding Number(s)
CONTRACT_GRANT: NCC2-231
Distribution Limits
Public
Copyright
Other
Keywords
NASA Discipline Life Support Systems
NASA Discipline Number 61-10
Non-NASA Center

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