Variation of lipid and fatty acid compositions of the marine microalga Pavlova viridis (Prymnesiophyceae) under laboratory and outdoor culture conditions |
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| Authors: | Changwei Hu Mei Li Jianlong Li Qin Zhu Zhili Liu |
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| Affiliation: | (1) Department of Biological Science and Technology, School of Life Science, Nanjing University, Nanjing, 210093, China;(2) National Key Laboratory of Pollution Control and Resource Reuse of China, The School of Environment, Nanjing University, Nanjing, 210093, China |
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| Abstract: | The marine microalga Pavlova viridis (Prymnesiophyceae) is widely used in marine aquaculture industries of China for feeding bivalves and has been proposed as an alternative source of eicosapentaenoic acid (EPA). To investigate variation of its lipid and fatty acid compositions during laboratory and outdoor cultivation, a 60-1 photobioreactor was established in Nanjing, China. Outdoor cultivation, paralleled with laboratory cultures in mid-October, was performed from autumn through midwinter. The results showed that the total lipid and EPA contents of outdoor cultures were both lower than those of indoor cultures. When the outdoor temperature and illumination decreased, total lipid experienced no significant change. Although the level of saturated fatty acids decreased, polyunsaturated fatty acids, especially EPA, increased. |
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| Keywords: | Eicosapentaenoic acid Fatty acid Lipid Pavlova viridis Photobioreactor Variation |
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