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首页> 外文期刊>Journal of Chemical Engineering of Japan >Shortening the Light Path Length of Photobioreactors to Elevate the Cell Mass Concentration of Cyanobacterium Synechococcus sp. Strain PCC6301
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Shortening the Light Path Length of Photobioreactors to Elevate the Cell Mass Concentration of Cyanobacterium Synechococcus sp. Strain PCC6301

机译:缩短光生物反应器的光路长度,以提高蓝细菌Syechococcus sp。的细胞质量浓度。菌株PCC6301

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摘要

To explore high-cell density cultivation of photolithotrophs in the production of high-value compounds, a model cyanobacterium Synechococcus sp. strain PCC6301 was grown in rectangular photobioreactors with light path lengths of 0.1, 0.3, 0.5,1.4 and 5 cm. A mathematical model to correlate cell growth with medium concentration, light transmittance and light path length was formulated. Logarithmic and linear growth phase were prolonged, and linear growth rate was elevated by shortening the light path length and by avoiding monohydrogen phosphate ion depletion. With sufficient monohydrogen phosphate ions, a high cell mass concentration of 24.5 mg·mL~(-1) was accomplished using a 0.1 cm light path length photobioreactor.
机译:要探索在高价值化合物生产中的光养菌的高细胞密度培养,模型蓝藻Synechococcus sp。菌株PCC6301在矩形光生物反应器中生长,光程长度为0.1、0.3、0.5、1.4和5 cm。建立了将细胞生长与培养基浓度,透光率和光程长度相关的数学模型。通过缩短光路长度和避免磷酸一氢离子消耗,可以延长对数和线性生长期,并提高线性生长期。在磷酸根一氢离子充足的条件下,使用光程为0.1 cm的光生物反应器可以达到24.5 mg·mL〜(-1)的高细胞质量浓度。

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