| 摘要: |
| 采用反相高效液相色谱分析法(RP-HPLC)研究了稀土元素铈(Ce3+)对雨生红球藻(Haematococcus pluvialis)生长及虾青素积累的影响。结果表明,低质量浓度的 Ce3+对微藻生长和虾青素积累均具有明显的促进作用,当 Ce3+的质量浓度为0.1 mg/L 时,对藻生长的促进效果最佳,细胞密度较对照组提高34%;当 Ce3+的质量浓度为1 mg/L时,虾青素质量分数可达到细胞干质量的3. |
| 关键词: 铈 虾青素 雨生红球藻(Haematococcus pluvialis) 生长 积累 |
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| 基金项目:厦门市科技项日(3052Z20031086);新加坡厦门大学校友基金会项目(2007);2007年度大学生创新性实验计划项目(2007);第十一届“挑战杯”全国犬学生课外学术科技作品竞赛项目(2008) |
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| Effects of cerium on cell growth and astaxanthin production of Haematococcus pluvialis |
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| Abstract: |
| The effects of rare earth element cerium on the cell growth and astaxanthin production of Haematococcus pluvialis were studied.The results showed that lower concentration of Ce3+ could improve both the growth rate and astaxanthin production of the microalgae.When the Ce3+ of 0.1 mg/L concentration was added,the cell number of H. pluvialis was 34% more than the controls.1 mg/L concentration was the best to accumulate astaxanthin.The astaxanthin content under stress condition could be 3.2% of the cell dry mass,which was 167% higher than the controls.Additionally,higher concentration of Ce3+ restrained the growth and astaxanthin production of H. pluvialis. |
| Key words: cerium astaxanthin Haematococcus pluvialis growth accumulation |
