Antioxidative phenolics obtained from spent coffee grounds (Coffea arabica L.) by subcritical water extraction
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- 作者：Honggao Xu ; Weiyou Wang ; Xin Liu ; Fang Yuan ; Yanxiang Gao ; gyxcau@126.com" class="auth_mail" title="E-mail the corresponding author
- 关键词：Spent coffee grounds ; Response surface methodology ; Subcritical water extraction ; Total phenolics ; Antioxidant activity ; Chlorogenic acids
- 刊名：Industrial Crops & Products
- 出版年：2015
- 出版时间：15 December 2015
- 年：2015
- 卷：76
- 期：Complete
- 页码：946-954
- 全文大小：1634 K
文摘
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Subcritical water was first used to recover phenolics from spent coffee grounds (SCG).
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The maximum antioxidant activity of SCG extract was optimized by response surface methodology (RSM).
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The predicted values of phenolics yield and the antioxidant activity were well fitted to the experimental data.
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Chlorogenic acids were the main compounds contributing to the antioxidant activity of SCG extract.