期刊
ULTRASONICS SONOCHEMISTRY
卷 34, 期 -, 页码 206-213出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.ultsonch.2016.05.005
关键词
Ultrasound-assisted solid-liquid extraction; Spent coffee ground; Box-Behnken response surface design; Phenolic compounds
资金
- King Saud University
In this current work, Box-Behnken statistical experimental design (BBD) was adopted to evaluate and optimize USLE (ultrasound-assisted solid-liquid extraction) of phytochemicals from spent coffee grounds. Factors employed in this study are ultrasonic power, temperature, time and solid-liquid (SL) ratio. Individual and interactive effect of independent variables over the extraction yield was depicted through mathematical models, which are generated from the experimental data. Determined optimum process conditions are 244 W of ultrasonic power, 40 degrees C of temperature, 34 min of time and 1:17 g/ml of SL ratio. The predicted values were in correlation with experimental values with 95% confidence level, under the determined optimal conditions. This indicates the significance of selected method for USLE of phytochemicals from SCG. (C) 2016 Elsevier B.V. All rights reserved.
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