平板式光生物反应器培养液混合强度对螺旋藻生长的影响

目的：探讨平板式光生物反应器内培养液混合对螺旋藻生长的影响规律。方法：在平板式光生物反应器中进行钝顶螺旋藻（Spirulina platensis）户内和户外培养，通过改变通入反应器内气体的流量来控制培养液的混合强度，测定藻细胞的面积产量和叶绿素含量。结果：在一定的混合强度范围内，藻细胞的面积产量随着混合强度的增加而增加；室内培养时，混合强度的改变不会影响藻细胞的光合反应特性，户外高密度培养时，培养液混合强度的改变会造成藻细胞光合反应特性的变化。结论：强化培养液的混合可以提高螺旋藻产量。

Influence of the Mixing Intensity on the Spirulina platensis Flat-plate Photo-bioreactor Culturing

Abstract Objective] The purpose of this paper was to investigate the effects of mixing intensity on the alga growth. Method] Spirulina platensis was cultured in the flat plate photo-bioreactors both indoors and outdoors, the alga growth areal yield and chlorophyll content under different mixing intensity were measured. Result] Results showed that the alga growth yield increased with the mixing intensity increasing; the physiological characteristic was not influenced by the mixing intensity when the alga was cultured indoors, while it was influenced by the mixing under the outdoor condition. Conclusion] To intensify the culture liquor mixing can effectively enhance the alga yield.