A facile one-pot green synthesis of β-cyclodextrin decorated porous graphene nanohybrid as a highly efficient adsorbent for extracting aflatoxins from maize and animal feeds
| Autor: | Rasoul Rezaei Bezenjani, Forogh Rezvani, Ebrahim Rezaeipour, Mohammad Mehdi Foroughi, Najmeh Sheibani Tezerji, Nezhat Jandaghi |
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| Rok vydání: | 2020 |
| Předmět: |
Materials science
Zea mays 01 natural sciences Analytical Chemistry law.invention 0404 agricultural biotechnology Adsorption Aflatoxins Limit of Detection law Specific surface area Animals Solid phase extraction Chromatography High Pressure Liquid chemistry.chemical_classification Detection limit Cyclodextrin Graphene Solid Phase Extraction beta-Cyclodextrins 010401 analytical chemistry Green Chemistry Technology 04 agricultural and veterinary sciences General Medicine Ascorbic acid Animal Feed 040401 food science 0104 chemical sciences chemistry Chemical engineering Surface modification Graphite Porosity Food Science |
| Zdroj: | Food Chemistry. 311:125747 |
| ISSN: | 0308-8146 |
| DOI: | 10.1016/j.foodchem.2019.125747 |
| Popis: | In this paper, β-cyclodextrin (β-CD) supported on porous graphene nanohybrid (β-CDPG) was obtained by self-assembly of functionalized graphene nanosheets into a three-dimensional network in the presence of ascorbic acid via an in situ graphene oxide reduction and β-CD functionalization process during a hydrothermal reaction. The prepared supramolecular nanohybrid was further packed into a reusable syringe filter holder and applied as an adsorbent for solid phase extraction of four aflatoxins (B1, B2, G1, G2). Under optimal conditions, the detection limits and linear dynamic ranges were achieved in the range of 0.0075–0.030 μg kg−1 and 0.025–100 μg kg−1, respectively and the relative standard deviations were less than 6.1%. Good recoveries were observed for analyzing target AFs in maize and cereal-based chicken feed samples ranged from 90.5 to 105%. The method offered simultaneous advantages of high supramolecular recognition and enrichment capability of β-CD and the high specific surface area of the porous graphene. |
| Databáze: | OpenAIRE |
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