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KMID : 1059520090530040427
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Journal of the Korean Chemical Society
2009 Volume.53 No. 4 p.427 ~ p.431
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Study of Thermodynamic Mechanism for Using Organic Solvent to Extract Isoflavone from Soybean Residuals
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Li Hua
Hu Guo-Pin
Li Dan
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Abstract
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The thermodynamical mechanism of the extraction of soybean isoflavones from soybean residuals using organic solvent method has been studied. On the basis of experiments, a simple model for determining the distribution coefficients in organic solvent extraction was employed to calculate the thermodynamical functions between K, ΔH0, ΔS0 and ΔG0 in the soybean isoflavones extraction process. The results show that the soybean isoflavones extraction is an endothermic and an entropy-increasing process: the ΔG0 decreases when the temperature arises.
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KEYWORD
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Soybean isoflavones, Organic solvent, Extraction, Thermodynamic mechanism, Soybean residuals
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