基于包裹效应的微藻培养光衰减模型  

A New Light Attenuation Model on Microalgal Suspensions Based on Package Effect

作　　者：颜日明[1] 毛玲雯 张志斌[1] 汪涯[2] 杨慧林[1,2] 朱笃[1,2] 

机构地区：[1]江西师范大学亚热带植物利用与保护省重点实验室,江西南昌330022 [2]江西科技师范大学省生物加工过程重点实验室,江西南昌330013

出　　处：《过程工程学报》2015年第4期665-669,共5页The Chinese Journal of Process Engineering

基　　金：国家自然科学基金资助项目(20506009)

摘　　要：基于藻细胞对光的包裹效应并结合藻细胞的光衰减数据,建立了藻细胞培养的光衰减指数模型,Ka=Kam+Cexp(??X),以文献数据对其进行了检验.结果表明,模型与文献数据的拟合相关系数分别为0.99965和0.99832.不同藻细胞对最小比消光系数Kam、参数C和比例系数?有影响,但Kam+C值相对稳定.色素含量对比消光系数Ka有一定影响,Synechococcus sp.PCC7942的Ka约为240 m2/kg.A new exponential model of light attenuation,Ka=Ka^m＋Cexp（-εX）, was proposed on the basis of package effect theory and light attenuation experiments in different microalgal suspensions. The correlation coefficient of this model was evaluated as over 0.99 based on the experimental data from literatures. The minimum attenuation coefficient Kam, constant parameter C and proportional coefficient 6 were dependent on the types of microalgae, but the value of Ka^m＋c was relatively stable. Moreover, the value of actual attenuation coefficient Ka in Synechococcus sp. PCC7942 was about 240 m^2/kg in spite of the alteration of pigment content.

关 键 词：微藻 包裹效应 光衰减 指数模型 

分 类 号：TQ018[化学工程]