Department of Chemical Engineering, University of Almería, Almería, Spain.
Bioresour Technol. 2011 Feb;102(3):3138-48. doi: 10.1016/j.biortech.2010.10.088. Epub 2010 Oct 25.
Maximum photobioreactor (PBR) efficiency is a must in applications such as the obtention of microalgae-derived fuels. Improving PBR performance requires a better understanding of the "light regime", the varying irradiance that microalgal cells moving in a dense culture are exposed to. We propose a definition of light regime that can be used consistently to describe the continuously varying light patterns in PBRs as well as in light/dark cycles. Equivalent continuous and light/dark regimes have been experimentally compared and the results show that continuous variations are not well represented by light/dark cycles, as had been widely accepted. It has been shown that a correct light regime allows obtaining photosynthetic rates higher than the corresponding to continuous light, the so-called "flashing light effect" and that this is possible in commercial PBRs. A correct PBR operation could result in photosynthetic efficiency close to the optimum eight quanta per O(2).
最大的光生物反应器（PBR）效率是必须的，例如在获得微藻衍生燃料的应用。提高 PBR 的性能需要更好地了解“光制度”，即密集培养中的微藻细胞所暴露的变化辐照度。我们提出了一种光制度的定义，可以一致地用来描述 PBR 中的不断变化的光模式以及光/暗循环。等效连续和光/暗制度已经进行了实验比较，结果表明，连续变化不能很好地用光/暗循环来表示，这是广泛接受的。已经表明，正确的光制度可以获得比连续光更高的光合作用速率，即所谓的“闪光光效应”，并且这在商业 PBR 中是可能的。正确的 PBR 操作可以使光合作用效率接近最佳的每 8 个量子氧（O2）。
