光强在鱼腥藻7120培养液中的衰减及其对藻细胞生长的影响  

Attenuation of Light Intensity and Its Effect on Cell Growth in Anabeana sp. PCC 7120 Culture

作　　者：康瑞娟[1] 蔡昭铃[1] 施定基[2] 

机构地区：[1]中国科学院化工冶金研究所生化工程国家重点实验室,北京100080 [2]中国科学院植物研究所,北京100093

出　　处：《化工冶金》2000年第4期384-388,共5页

摘　　要：研究了光强的衰减与鱼腥藻7120细胞浓度和光程的关系，并通过回归分析，得出了光强基于细胞密度和光路长度衰减的关联式，为预测培养过程中的光强变化和调控提供了依据. 同时，在15 L气升式反应器中，研究了恒定光强和渐变光强下藻细胞的生长情况，探讨了光强变化对藻细胞生长的影响，并对培养过程中细胞倍增时间作了比较，进一步说明了光强在藻细胞培养中的重要作用.The changes of light intensity with cell density and optical length in the liquid culture of Anabeana sp. PCC 7120 were investigated. Based on experimental results, the light attenuation could be described by I = I0exp[-(0.0131+0.987OD750)L]. The effects of stable and variable lighting on the growth of cell in a 15 L airlift photobioreactor were examined. The results show that the program of light intensity has a strong effect on the growth of microalgae. The doubling time under different conditions was compared.

关 键 词：鱼腥藻7120 光生物反应器 光衰减 培养 蓝藻 

分 类 号：Q949.22[生物学—植物学]