Rapid assessment of bioactive phenolics and methylxanthines in spent coffee grounds by FT-NIR spectroscopy
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- 作者：Luí ; s M. Magalhã ; esb ; Sandia Machadoa ; Marcela A. Segundob ; Joã ; o A. Lopesc ; Ricardo N.M.J. Pá ; scoaa ; rnpascoa@ff.up.pt" class="auth_mail" title="E-mail the corresponding author
- 关键词：Spent coffee grounds ; Phenolic compounds ; Methylxanthines ; Near-infrared spectroscopy ; Caffeine ; Chlorogenic acid ; Partial least squares regression ; Chemometrics
- 刊名：Talanta
- 出版年：2016
- 出版时间：15 January 2016
- 年：2016
- 卷：147
- 期：Complete
- 页码：460-467
- 全文大小：1193 K
文摘
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Spent coffee grounds (SCG) are a great source of bioactive compounds.
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Content of phenolics and methylxanthines in SCG is a parameter for waste valorization.
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NIR spectroscopy was able to determine successfully the content of these compounds in SCG.
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NIR spectroscopy is proposed as alternative to HPLC analysis.