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| 基金项目:中国科学院知识创新工程，国家自然科学基金项目共同资助 |
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| Comparison of photobioreactors for cultivation of Porphyra Haitanensis sporophytes |
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Den Xiangyuan, Zhang Wen, Jiang Pen, Qing Song
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Institute of Oceanology Chinese Academy of Sciences
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| Vegetative cells of Porphyra haitanensis sporophytes were grown in a bubble-column and a draft-tube internal-loop airlift bioreactor at 20℃ with an illuminance of 40μmol photons m-2 s-1 for 20days. The draft-tube internal-loop airlift bioreactor yielded maximum cell density of 4850mg DCW (Dried Cell Weight)/L and higher growth rate of 0.094/d, compared to the bubble-column, 3950mg DCW/L and 0.086/d, respectively. The advantages were related to the more homogeneous fluid dynamic characteristics in the draft-tube internal-loop airlift bioreactor than the bubble-column bioreactor. |
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