Optimization of Extraction of Coix Seed Oil and Kinetic Models

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Abstract The orthogonal design was used to optimize the extraction conditions of ultrasoundassisted extraction of coix seed oil, and the mathematic model was built to fit the experimental data. The results showed the optimal extraction conditions were: the size of coix lacrymajobi was 0180 mm; temperature was 60 ℃; the ratio of material to liquid was 1.0∶55; the extraction time was 50 min, and the yield of extraction was 6.348%, RSD=1.76%(n=3). The kinetic model is lnC=λ+γlnt, the linear correlation coefficient (R) is greater than 0.9966 The regression of the mathematical model is effective and can be applied to controlling the extraction process optimization of coix seed oil.

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	YUE 　Li
	ZHAO Wen-Ying
	WEN You-Ying
	HUANG Qiao-Yan

Keywords： coix seed oil ultrasonic extraction orthogonal design kinetic model

Fund:

山东省中青年科学家科研奖励基金（BS2009SW033），青岛科技大学博士基金项目（qust20071217）。

Cite this article:

YUE Li, ZHAO Wen-Ying, WEN You-Ying, HUANG Qiao-Yan.Optimization of Extraction of Coix Seed Oil and Kinetic Models[J] Chemcial Industry and Engineering, 2011,V28(4): 26-29

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