High Selective Separation of Flavonoids based on Crosslinked Chitosan Resin Grafted by Quercetin

In this study, crosslinked chitosan resin grafted by quercetin (QCCR) was used as a novel adsorbent to separate flavonoids. Functional quercetin groups were introduced to the adsorbent matrix, and the hydrophobic interaction occurred when these functional groups in the adsorbent approached the adsor...

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Bibliographic Details
Published inSeparation science and technology Vol. 48; no. 18; pp. 2825 - 2833
Main Authors Zhang, Jie, Zhou, Xiaohua, Wang, Dan, Sang, Luyan, Peng, Yuanhong, Tan, Shiyu, Li, Qiang
Format Journal Article
LanguageEnglish
Published Taylor & Francis Group 12.12.2013
Subjects
Adsorbents
Adsorption
crosslinked chitosan resin
Crosslinking
Flavonoids
Functional groups
hydrophobic interaction
Polymers
quercetin
Selectivity
Separation
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Summary:In this study, crosslinked chitosan resin grafted by quercetin (QCCR) was used as a novel adsorbent to separate flavonoids. Functional quercetin groups were introduced to the adsorbent matrix, and the hydrophobic interaction occurred when these functional groups in the adsorbent approached the adsorbate with the same ring structure, which enhanced the adsorption selectivity towards flavonoids. The hydrophobic interaction played an important role in the selective adsorption. Atomic force microscopy provided intuitively the spatial conformation and the interactions between flavonoids and QCCR at the molecular level. The influences of functional groups of synthesized adsorbents on the adsorption selectivity and the optimum conditions were investigated in detail. QCCR was considered as an alternative material for obtaining the bioactive flavonoid compounds with high concentration.
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content type line 23
ISSN:0149-6395
1520-5754
DOI:10.1080/01496395.2013.808669