摘要
采用正交实验的方法,在光生物反应器中对纤细角毛藻 Chaetoceros gracilis的生长进行了研究,结果表明:光照强度、通气率对藻体细胞的生长具有显著的影响,在通气培养条件下,当培养密度较高时,纤细角毛藻细胞不仅能耐受超高光照强度的照射,而且还可以获得很高的生长速度。本实验条件下, -1 7经过 5 d的培养,细胞的比生长速率﹑生物量产量和细胞密度分别达到了 0.74 d ﹑1.13 g/L和 8.1×10 /mL的较高水平。
By means of orthogonal tests the growth of Chaetocereos gracilis was investigated in a 20 L airlift photobioreactor. The results showed that light intensity and aerating rate could affect the growth of Chaetoceros gracilis evidently and the optimal growth conditions were obtained: light intensity: 8 mW/cm2, aerating rate: 0.6 vvm and temperature: 23 ℃ . Under the optimal culture conditions and despite high culture density the microalgal cells could not only tolerate irradiance of super-high light intensity but also grow faster. The maximum specific growth rate was 1.44 d-1 and the cells density up to 8.1×107/mL.
出处
《海洋通报》
CAS
CSCD
北大核心
2005年第1期35-40,共6页
Marine Science Bulletin
关键词
纤细角毛藻
光生物反应器
培养
Chaetoceros gracilis
airlift photobioreactor
cultivation
