0.9800,RSD小于1.00%);但一級(jí)兩項(xiàng)模型的快速、慢速浸提速率常數(shù)等參數(shù)隨溫度變化的趨勢(shì)未能反映相應(yīng)的物理意義。因此,一級(jí)一項(xiàng)動(dòng)力學(xué)模型更適用于黃芩黃酮浸提過(guò)程的模擬。"/>

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黃芩黃酮浸提過(guò)程動(dòng)力學(xué)模型適用性分
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Analysis of Kinetic Models for Extracting Flavonoids from Scutellariae Radix
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    摘要:

    為考察一級(jí)一項(xiàng)和一級(jí)兩項(xiàng)動(dòng)力學(xué)模型對(duì)黃芩黃酮浸提過(guò)程的模擬效果,通過(guò)不同浸提溫度下的黃芩黃酮浸提過(guò)程試驗(yàn),采用最小二乘法回歸分別計(jì)算兩動(dòng)力學(xué)模型的參數(shù)。結(jié)果表明:兩模型對(duì)黃芩黃酮浸提過(guò)程的擬合效果都較為理想(R2>0.9800,RSD小于1.00%);但一級(jí)兩項(xiàng)模型的快速、慢速浸提速率常數(shù)等參數(shù)隨溫度變化的趨勢(shì)未能反映相應(yīng)的物理意義。因此,一級(jí)一項(xiàng)動(dòng)力學(xué)模型更適用于黃芩黃酮浸提過(guò)程的模擬。

    Abstract:

    The parameters of one-component kinetic model (OKM) and two-component kinetic model (TKM) for extracting flavonoids from scutellaria radix were calculated when the kinetic curves at 4 different temperatures were obtained under 50% ethanol as solvent, liquor-to-solid ratio of 20g/mL and scutellaria radix particles with the size of 20~40 mesh as the experimental material. It indicates that both of the regression results of the two models fit the experimental data well with the correlation coefficient of regression (R2) more than 0.9800 and the relative standard deviation of regression (RSD) less than 1.00%. And although the regression result of TKM was better than that of OKM, the changing of some TKM parameters with temperature were unreasonable.

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王唯涌,韓魯佳.黃芩黃酮浸提過(guò)程動(dòng)力學(xué)模型適用性分[J].農(nóng)業(yè)機(jī)械學(xué)報(bào),2009,40(4):116-120. Analysis of Kinetic Models for Extracting Flavonoids from Scutellariae Radix[J]. Transactions of the Chinese Society for Agricultural Machinery,2009,40(4):116-120.

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