Nonisotropic Scattering Model for Estimation of Light Absorption Rates in a Suspension Culture ofCoffea arabicaCells

摘要

AbstractA nonisotropic scattering model is proposed to estimate the light absorption rates in a heterogeneous photoreactor containing plant cells ofCoffea arabicaand is compared with an isotropic scattering model. In order to determine the directions of noniso‐tropically scattered light, optical theorems (geometrical optics and wave optics) are applied to light scattering caused by a homogeneous and perfect sphere. Two parameters, relative refractive index and attenuation coefficient, are used to characterize the ideal sphere. The primary feature of this model is that various phenomena of light scattering and absorption can be simulated by the combination of the two parameters. A measuring system composed of parallel plates was developed for evaluating the model. The nonisotropic scattering model was successfully applied to the heterogeneous reactor with the cultured plant cell