Molecularly Imprinted Electrochemical Sensor Based on α-Cyclodextrin Inclusion Complex and MXene Modification for Highly Sensitive and Selective Detection of Alkylresorcinols in Whole Wheat Foods.
J Agric Food Chem
; 72(18): 10655-10664, 2024 May 08.
Article
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| MEDLINE
| ID: mdl-38661642
ABSTRACT
Authenticating whole wheat foods poses a significant challenge for both the grain industry and consumers. Alkylresorcinols (ARs), serving as biomarkers of whole wheat, play a crucial role in assessing the authenticity of whole wheat foods. Herein, we introduce a novel molecularly imprinted electrochemical sensor with modifications involving a molecularly imprinted polymer (MIP) and MXene nanosheets, enabling highly sensitive and selective detection of ARs. Notably, we specifically chose 5-heneicosylresorcinol (AR21), the predominant homologue in whole wheat, as the template molecule. α-Cyclodextrin and acrylamide served as dual functional monomers, establishing a robust multiple interaction between the MIP and AR21. As a result, the sensor exhibited a wide linear range of 0.005 to 100 µg·mL-1 and a low detection limit of 2.52 ng·mL-1, demonstrating exceptional selectivity and stability. When applied to commercial whole wheat foods, the assay achieved satisfactory recoveries and accuracy, strongly validating the practicality and effectiveness of this analytical technique.
Palabras clave
Texto completo:
1
Banco de datos:
MEDLINE
Asunto principal:
Resorcinoles
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Triticum
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Contaminación de Alimentos
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Alfa-Ciclodextrinas
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Impresión Molecular
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Técnicas Electroquímicas
Idioma:
En
Revista:
J Agric Food Chem
Año:
2024
Tipo del documento:
Article
País de afiliación:
China