Growth characteristics and eicosapentaenoic acid production by Nannochloropsis sp. in mixotrophic conditions |
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Authors: | Fang Xu Han-hua Hu Wei Cong Zhao-ling Cai Fan Ouyang |
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Institution: | State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100080, PO. Box 353, PR China. xufang1974@yahoo.com |
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Abstract: | Nannochloropsis sp. was grown under mixotrophic conditions with 30 mM glucose as carbon source, reaching 507 mg dry wt l(-1) after 8 d. This was 1.4-fold of that obtained under photoautotrophic conditions. Under mixotrophic and photoautotrophic cultivations, the net photosynthetic rate of Nannochloropsis sp. did not change but the respiratory rate increased in the mixotrophic cultivation. The yield of eicosapentaenoic acid was 22 mg l(-1) in the mixotrophic cultivation and 20 mg l(-1) under the photoautotrophic cultivation. |
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Keywords: | eicosapentaenoic acid glucose mixotrophic growth Nannochloropsis sp photoautotrophic growth |
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