| 摘要: |
| 用气相色谱法分析纤细角刺藻的脂肪酸含量,探索不同温度和光照对该藻二十碳五烯酸(EPA)含量的影响。结果显示,从15℃~30℃,该藻的EPA含量随温度的升高而增加,其绝对含量在25℃时最高,而相对含量在30℃时最高。当温度超过30℃时,EPA含量急剧下降。在低光照下,EPA相对含量较高,占总脂肪酸的20.75%,在高光照下,EPA绝对含量较高,但相对含量只占总脂肪酸的6.44% |
| 关键词: 纤细角刺藻 二十碳五烯酸(EPA) 温度 光照 |
| DOI： |
| 投稿时间：2000-08-13修订日期：2001-01-21 |
| 基金项目:广西青年科学基金资助项目(9718016)。 |
|
| Effect of Temperature and Light on the Content of Eicosapentaenoic Acid in Chaetoceros gracillis |
|
Wu Bin
|
| (Guangxi Institute of Oceanography, 92 East Changqinglu, Beihai, Guangxi, 536000, China) |
| Abstract: |
| The effect of temperature and light on the content of eicosapentaenoic acid(EPA) in Chaetoceros gracillis was studied by gas chromatography.From 15℃ to 30℃, the content of EPA increased with increasing of temperature. The absolute content of EPA was highest at 25℃, whereas the relative content of EPA was highest at 30℃. When the temperature exceeded 30℃, the content of EPA decreased rapidly. In low light condition, the relative content of EPA was higher, and accounted for 20.75% of the total fatty acid. In high light condition, the absolute content of EPA was higher, but its relative content only accounted for 6.44% of the total fatty acid. |
| Key words: Chaetoceros gracillis eicosapentaenoic acid (EPA) temperature light |
