Adsorptive removal of polyphenols from an alfalfa white proteins concentrate: Adsorbent screening, adsorption kinetics and equilibrium study

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• 作者：L. Firdaous^a ; ^{loubna.firdaous@univ-lille1.fr} ; B. Fertin^a ; O. Khelissa^a ; M. Dhainaut^a ; N. Nedjar^a ; G. Chataigné ; ^a ; L. Ouhoud^a ; F. Lutin^b ; P. Dhulster^a
• 关键词：Alfalfa ; Polyphenols ; Adsorption ; Screening ; Kinetics ; Adsorption mechanism
• 刊名：Separation and Purification Technology
• 出版年：2017
• 出版时间：7 May 2017
• 年：2017
• 卷：178
• 期：Complete
• 页码：29-39
• 全文大小：615 K
• 卷排序：178

文摘

Adsorption of polyphenols contained in an alfalfa protein concentrate was screened using six food grade macroporous resins. Adsorption was not significantly affected by pH variation. Pseudo-second-order kinetics model was suitable for evaluating the adsorption process. The adsorption process close equilibrium was controlled by intra-particle diffusion. The adsorption equilibrium was well described by the Langmuir isotherm model.