Influences of Culture Temperature on the Growth, Lipid Content and Fatty Acid Composition of Aurantiochytrium sp. Strain mh0186

The growth, lipid content, and fatty acid composition of Aurantiochytrium sp. strain mh0186 at different temperatures were investigated. Strain mh0186 grew well at 15-30°C, but weakly at 10°C. The biomass at 15-30°C was significantly higher than at 10 and 35°C, and the total lipid at 15-35°C was sig...

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Bibliographic Details
Published in:Marine biotechnology (New York, N.Y.) N.Y.), 2009-06, Vol.11 (3), p.368-374
Main Authors: Taoka, Yousuke, Nagano, Naoki, Okita, Yuji, Izumida, Hitoshi, Sugimoto, Shinichi, Hayashi, Masahiro
Format: Article
Language:English
Subjects:
Aurantiochytrium
Biomass
Biomedical and Life Sciences
Culture Media
Engineering
Eukaryota - chemistry
Eukaryota - growth & development
fatty acid composition
Fatty acids
Fatty Acids - analysis
Freshwater & Marine Ecology
Growth
Life Sciences
lipid content
Lipids
Lipids - analysis
Marine
Microbiology
Microorganisms
Oceans and Seas
Original Article
Temperature
Temperature effects
Thraustochytrids
Zoology
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Summary:The growth, lipid content, and fatty acid composition of Aurantiochytrium sp. strain mh0186 at different temperatures were investigated. Strain mh0186 grew well at 15-30°C, but weakly at 10°C. The biomass at 15-30°C was significantly higher than at 10 and 35°C, and the total lipid at 15-35°C was significantly higher than that at 10°C. The amount of DHA in the total fatty acid was highest at 10°C and decreased in response to temperature increase. The content of DHA (mg/g-dry cell weight) at 15-30°C were significantly higher than those at 35°C and those at 15-25°C were significantly higher than those at 10 and 35°C. The DHA yield at 15-35°C was significantly higher than those at 10 and 35°C. Unsaturation of fatty acid was regulated by temperature and was enhanced in response to temperature decrease. The ratio of DHA to DPA varied at different temperatures.
ISSN:1436-2228
1436-2236
DOI:10.1007/s10126-008-9151-4