Model Fitting of Moisture Adsorption Process for Bupleuri Radix Extract

TANG Cheng-cheng; JIA Ai-ling; WANG Ya-jie; DONG Jin-xiang; QIU Zhi-dong; YANG Jing

doi:10.13422/j.cnki.syfjx.2016220007

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Model Fitting of Moisture Adsorption Process for Bupleuri Radix Extract

更新时间：2024-01-04

- Model Fitting of Moisture Adsorption Process for Bupleuri Radix Extract
- Chinese Journal of Experimental Traditional Medical Formulae Vol. 22, Issue 22, Pages: 7-11(2016)
- 作者机构：
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- DOI：10.13422/j.cnki.syfjx.2016220007
  CLC： R284
- Published：2016
- 稿件说明：
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TANG Cheng-cheng, JIA Ai-ling, WANG Ya-jie, et al. Model Fitting of Moisture Adsorption Process for Bupleuri Radix Extract[J]. Chinese journal of experimental traditional medical formulae, 2016, 22(22): 7-11.
DOI：

TANG Cheng-cheng, JIA Ai-ling, WANG Ya-jie, et al. Model Fitting of Moisture Adsorption Process for Bupleuri Radix Extract[J]. Chinese journal of experimental traditional medical formulae, 2016, 22(22): 7-11. DOI： 10.13422/j.cnki.syfjx.2016220007.

摘要

目的：拟合柴胡提取物吸湿过程中的数学模型。方法：利用重量法测试柴胡提取物吸湿过程动力学曲线和吸附-解吸等温线，运用1stOpt统计分析软件进行拟合，以均方根误差（RMSE），残差平方和（RSS）和决定系数（R2）为评价指标，筛选最佳拟合模型。结果：柴胡提取物吸湿过程动力学双指数模型、吸附-解吸等温线Peleg模型因R2更接近于1，RMSE和RSS更接近于0而拟合效果最好。柴胡提取物的吸附-解吸等温线均属于第Ⅱ种类型，柴胡提取物解吸等温线因较高的平衡含水率而出现明显的滞后现象，该滞后现象属于H3型，并且吸附、解吸机制清楚地解释了该滞后现象。结论：双指数模型和Peleg模型分别较好地拟合了柴胡提取物的吸湿动力学曲线及吸附-解吸等温线，对柴胡提取物及其他中药提取物干燥、混合、包装、贮藏等方面涉及到的防潮技术选择都有一定指导意义。

Abstract

Objective: To fit mathematical model for moisture adsorption process of Bupleuri Radix extract. Method: Moisture adsorption kinetics curve

adsorption and desorption isotherms of Bupleuri Radix extract were determined by gravimetric method

and the experimental data were fitted by 1stOpt statistical analysis software.Comparisons were evaluated with the coefficient of determination (R2)

residual sum of squares (RSS) and root mean square error (RMSE) as indexes. Result: The double exponential model was suitable for fitting moisture adsorption kinetics curve

and Peleg model was the best fitted for adsorption and desorption isotherms.The adsorption and desorption isotherms were belong to type Ⅱ behavior

the hysteresis loop was type of H3 and it was elucidated by adsorption-desorption mechanism. Conclusion: The double exponential model and Peleg model are suitable for fitting the moisture adsorption kinetics curve

the adsorption and desorption isotherms

respectively;and the adsorption and desorption isotherms exhibit an obvious hysteresis effect.

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