Multifunctional Bimetallic MOF with Oxygen Vacancy Synthesized by Microplasma for Rapid Total Antioxidant Capacity Assessment in Agricultural Products

Overview

Journal Food Chem X

Date 2024 Mar 4

PMID 38434695

Authors

Yi Xia

Juan He

Long Tang

Miao Hu

Jie Zhou

Yao-Yu Xiao

Zhi-Chao Jiang

Xue Jiang

Affiliations

Soon will be listed here.

Abstract

The assessment of total antioxidant capacity (TAC) is crucial for evaluating overall antioxidant potential, predicting the risk of chronic diseases, guiding dietary and nutritional interventions, and studying the effectiveness of antioxidants. However, achieving rapid TAC assessment with high sensitivity and stability remains a challenge. In this study, Ce/Fe-MOF with abundant oxygen vacancies was synthesized using microplasma for TAC determination. The microplasma synthesis method was rapid (30 min) and cost-effective. The presence of oxygen vacancies and the collaboration between iron and cerium in Ce/Fe-MOF not only enhanced the catalyst's efficiency but also conferred multiple enzyme-like properties: peroxidase-like, oxidase-like, and superoxide dismutase mimetic activities. Consequently, a simple colorimetric assay was established for TAC determination in vegetables and fruits, featuring a short analysis time of 15 min, a good linear range of 5-60 μM, a low detection limit of 1.3 μM and a good recovery of 91 %-107 %. This method holds promise for rapid TAC assessment in agricultural products.

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