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A new method for rupture of chlorella vulgaris and extraction of lipid |
1.School of Environmental Engineering and Architecture, University of Shanghai for Science and Technology, Shanghai 200093, China; 2.Sinopec Luoyang Company, Luoyang, Henan 471012, China |
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Abstract In order to investigate the rupture method of algae cells, a new method of pressure assisted by ozonation for the rupture of chlorella vulgaris and extraction of lipid was proposed. The effects of pressure and other physical factors on the oil extraction were also discussed. The experimental results show that the algae cells are obviously broken under the maximum pressure of 0.8 MPa and 80 cycle times, and the total nitrogen is increased by 68 mg·L-1with total phosphorus increased by 12.7 mg·L-1. The maximum yield of 26.7% is obtained under the conditions of 0.6 MPa and 80 cycle times. The results of GCMS show that the product is mainly composed of C16∶0 and C18∶0.
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Received: 15 April 2013
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