三角褐指藻中多烯脂肪酸的初步研究

The Preliminary Study on Polyunsaturated Fatty Acids from Phaeodactylum Tricornutum

研究了硅藻纲三角褐指藻中多烯脂肪酸的提取分离方法和含量测定，探讨了该硅藻的培养温度和时间对其脂肪酸和脂质含量的影响。该硅藻的二十碳五烯酸含量在脂肪酸中为11％左右；脂质含量随培养条件不同而变化，一次培养为11．8％，二次培养为18.2％。

The polyunsaturated fatty acids were extracted from Phaeodactylum tricornutum and analyzed by gas chromatography method. The influence of cultural temperature and time on contents of fatty acid and lipid were aiso studied. The results showed that the content of EPA in the fatty acids of Phaeodactylum tricornutum was about 11 % and the lipid was 11. 8% in the single culture and 18.2% in the second culture.