光合作用
颜料
吸收(声学)
衰减系数
衰减
蓝光
光散射
光合色素
叶绿素a
绿灯
吸收光谱法
光强度
叶绿素
化学
光能
类胡萝卜素
植物
材料科学
散射
光学
生物
食品科学
物理
光电子学
生物化学
有机化学
作者
Shiyan Ma,Weida Zeng,Yun Huang,Xianqing Zhu,Ao Xia,Xun Zhu,Qiang Liao
标识
DOI:10.1016/j.biortech.2022.126777
摘要
As the sole energy for photosynthesis, light decrease rapidly with path due to absorption by pigments and scattering by cells in microalgal suspensions. By comprehensively considering cell concentrations, pigment components, and light spectra, a modified Cornet model for light transmission in microalgal suspensions is established. The developed model better fits experimental data with a higher adjusted R2, which is 5% higher than the model that is based only on cell concentration. The attenuation of blue light is the most severe, followed by red and green light. Among the three main pigments, total carotenoids contribute the most to the absorption of blue and green light (with contribution coefficients of 89.26 ± 4.53% and 46.04 ± 3.77%, respectively), and chlorophyll a contributes the most to the absorption of red light (with a contribution coefficient of 75.33 ± 5.08%). This study provides a better understanding and prediction of light transmission during microalgal cultivation.
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