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首页> 外文期刊>Separation and Purification Technology >Solid-liquid extraction of phycocyanin from Spirulina platensis: Kinetic modeling of influential factors
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Solid-liquid extraction of phycocyanin from Spirulina platensis: Kinetic modeling of influential factors

机译：螺旋藻藻蓝蛋白的固液萃取：影响因素的动力学模型

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摘要

To effectively extract value-added phycocyanin from Spirulina platensis, the effects of processing parameters (pH and temperature) on extraction performance and global kinetics were systematically studied. The extraction kinetics was investigated by varying pH levels (5-8) and temperatures (30-60 °C). An empirical kinetic model incorporating the aforementioned factors was developed. A good agreement between the experimental and fitted data was obtained, which indicated that the extraction process followed second-order kinetics. Furthermore, the model parameters (equilibrium concentration, extraction rate constants, and initial rates of extraction) were calculated and formulated as a function of the operating factors. The activation energy of the extraction was 67.1 kJ mol~(-1), indicating that the process was endothermic. The predictions obtained from the developed model were compared with the experimental data under the same operating conditions. The predicted and experimental data were consistent, indicating the reliability of the model.
机译：为了有效地从螺旋藻中提取增值的藻蓝蛋白，系统地研究了工艺参数（pH和温度）对提取性能和整体动力学的影响。通过改变pH值（5-8）和温度（30-60°C）研究了萃取动力学。建立了包含上述因素的经验动力学模型。在实验数据和拟合数据之间取得了良好的一致性，这表明萃取过程遵循二级动力学。此外，计算模型参数（平衡浓度，萃取速率常数和初始萃取速率），并根据操作因子进行表述。提取物的活化能为67.1 kJ mol〜（-1），表明该过程是吸热的。在相同的操作条件下，将从开发的模型获得的预测与实验数据进行比较。预测和实验数据一致，表明模型的可靠性。

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