Degradation of aflatoxin B1 in corn by water-assisted microwave irradiation and its kinetic

作者：Yaolei Zhang, Lingling Zhang, Xiaoxia Zhang, Cheng Zhao, Mengmeng Li, Erqi Guan, Yangyong Lv, Ke Bian · 发表于：Toxicon · 年份：2025 · DOI：10.1016/j.toxicon.2025.108239 · 被引用次数：4 · 研究领域：Mycotoxins in Agriculture and Food、Potato Plant Research、Agriculture, Plant Science, Crop Management

Aflatoxin B 1 (AFB 1 ) is a highly toxic, carcinogenic, teratogenic, and mutagenic mycotoxin commonly found in corn. In this work, water-assisted microwave irradiation (WMI 1 ) was used to degrade AFB 1 in corn, during which the influencing factors and kinetics of AFB 1 degradation were also studied. The results showed that the degree of corn crushing, the heating rate of WMI, the temperature of WMI, the solid-liquid ratio, the initial content of AFB 1 and the microwave power were all important factors affecting the degradation of AFB 1 . With the increase of WMI temperature, AFB 1 content in corn, microwave power and the decrease of solid-liquid ratio, the degradation rate of AFB 1 in corn by WMI rose continuously. Its maximum degradation rate was more than 90.6%. Meanwhile, the degradation kinetics of AFB 1 in corn revealed that the degradation process of WMI followed a pseudo-first-order kinetic equation. It was demonstrated that water molecules not only acted as solvents for AFB 1 but also actively participated in its degradation process within corn samples during WMI treatment. Consequently, the results indicated that WMI was an effective method for degrading AFB 1 in corn. • Water-assisted microwave irradiation is a new method for AFB 1 degradation in corn. • The process of AFB 1 degradation conforms to pseudo-first-order kinetics. • Water molecules are reactants involved in the degradation of AFB 1 in corn. • Increasing the proportion of water can increase the degradat...