Selective Adsorption of Flavonoids on Chitosan Resin Grafted by Quercetin

Zhang, Jie; Zhou, Xiaohua; Xu, Hang; LuYan, Sang; Wang, Dan

doi:10.1109/icbeb.2012.349

Cited by 2 publications

(3 citation statements)

References 4 publications

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“…As this adsorption was facilitated by incorporating quercetin into the resin, this same kind of mechanism was already reported (Zhang et at., 2012).…”

Section: Marine Biopolymers Such As Proteins and Polysaccharides Are ...supporting

confidence: 70%

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Selective purification of quercetin using covalently crosslinked chitosan

Govindarajan

Muthuraman

2023

Environmental Quality Mgmt

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Quercetin is known for potent biomedical applications and selective purification of quercetin is the need of the hour. To achieve selective adsorption of quercetin, we have prepared chitosan resin grafted with quercetin. Chitosan is a polysaccharide that is derived from chitin. The shells of shrimp, crabs, and lobster are crucial for the extraction of chitin. After cellulose, chitin was the second most abundant polysaccharide and chitosan was derived by deacetylation of chitin. Chitosan was justified to be a better bio‐adsorbent because of its low cost and outstanding chelating efficiency. Chitosan was covalently cross‐linked to improve its mechanical stability. Herein, Quercetin grafted chitosan resin (QICR) was prepared, where adsorption occurs by hydrophobic interaction between 2‐phenyl‐chromones structure in resin and quercetin in bulk solution. Prepared QICR was characterized using Fourier Transform Infrared Spectroscopy (FTIR) for confirmation of quercetin grafted in chitosan. The porosity of the prepared resin was confirmed by Brunauer‐Emmett‐Teller (BET) and Scanning Electron Microscopy (SEM) analysis. The adsorption capacity of QICR was calculated for both static and dynamic modes and it was found to be approximately equal. The equilibrium data obtained from the adsorption studies were analyzed for isotherm models. Prepared QICR fits better with Langmuir adsorption isotherm with an R2 value of 0.98. Quercetin adsorption was analyzed for kinetic studies, in which pseudo‐second order describes the adsorption. The desorption capacity of quercetin was also calculated in dynamic mode. The present study reveals that prepared QICR would be a better choice for the selective adsorption of quercetin.

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“…As this adsorption was facilitated by incorporating quercetin into the resin, this same kind of mechanism was already reported (Zhang et at., 2012).…”

Section: Marine Biopolymers Such As Proteins and Polysaccharides Are ...supporting

confidence: 70%

“…Hence the high adsorption capacity and purity of flavonoids could be attained (Zhou et al., 2011). As this adsorption was facilitated by incorporating quercetin into the resin, this same kind of mechanism was already reported (Zhang et at., 2012).…”

Section: Introductionmentioning

confidence: 99%

Selective purification of quercetin using covalently crosslinked chitosan

Govindarajan

Muthuraman

2023

Environmental Quality Mgmt

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“…Literature suggests that flavonoid-type compounds can establish different interactions with protein-like fibers such as ubiquitous van der Waals forces, hydrogen bonds, and electrostatic and hydrophobic interactions [ 36 ]. Previous studies have shown that the adsorption of quercetin onto PA fibers is significantly higher than the adsorption of rutin [ 35 ] and can establish more firm hydrophobic interactions with chitosan resins [ 37 ]. Figure 6 represents simplified binding interactions of quercetin and tangeretin, as examples, with WO, PA, and CA fiber surfaces, while other extract compounds are supposed to behave in a similar manner.…”

Section: Resultsmentioning

confidence: 99%

Sustainable Dyeing and Functionalization of Different Fibers Using Orange Peel Extract’s Antioxidants

et al. 2022

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A diluted ethanol orange peel extract was used for sustainable dyeing and functionalization of different fabrics. The extract analysis was performed using UPLC-ESI-MS/MS; its total flavonoid (0.67 g RE/100 g d.w.) and antioxidant (2.81 g GAE/100 g d.w.) contents and antioxidant activity (IC50 of 65.5 µg/mL) were also determined. The extract dyeing performance at various dyebath pH values was evaluated using multifiber fabric. Among six fabrics, extract possessed the ability for dyeing wool, polyamide, and cellulose acetate (at pH 4.5), which color strength (K/S) values increased after washing (9.7–19.8 vs. 11.6–23.2). Extract:water ratio of 20:35 (v/v) was found to be sufficient for achieving satisfactory K/S values (i.e., 20.17, 12.56, and 10.38 for wool, polyamide, and cellulose acetate, respectively) that were slightly changed after washing. The optimal dyeing temperatures for wool, polyamide, and cellulose acetate are 55, 35, and 25 °C, while the equilibrium dye exhaustion at those temperatures was achieved after 45, 120, and 90 min, respectively. The color coordinate measurements revealed that wool and polyamide fabrics are yellower than cellulose acetate, while, compared to polyamide and cellulose acetate, wool is redder. Possible interactions between selected fabrics and extract compounds are suggested. All fabrics possessed excellent antioxidant activity (88.6–99.6%) both before and after washing. Cellulose acetate provided maximum bacterial reduction (99.99%) for Escherichia coli, and Staphylococcus aureus, which in the case of Staphylococcus aureus remained unchanged after washing. Orange peel extract could be used for simultaneous dyeing and functionalization of wool and polyamide (excellent antioxidant activity) and cellulose acetate (excellent antioxidant and antibacterial activity) fabrics.

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Selective Adsorption of Flavonoids on Chitosan Resin Grafted by Quercetin

Cited by 2 publications

References 4 publications

Selective purification of quercetin using covalently crosslinked chitosan

Selective purification of quercetin using covalently crosslinked chitosan

Sustainable Dyeing and Functionalization of Different Fibers Using Orange Peel Extract’s Antioxidants

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