A method for degrading zearalenone by using ceria nanocatalytic hydrogen peroxide under acidic conditions and application

By using hollow cerium dioxide nanozymes and hydrogen peroxide to catalyze the generation of reactive oxygen species under acidic conditions, the problem of natural enzyme inactivation in acidic environments is solved, achieving efficient, rapid, and safe degradation of zearalenone, which is suitable for food safety control.

CN122399783APending Publication Date: 2026-07-17GUANGXI ACAD OF SCI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
GUANGXI ACAD OF SCI
Filing Date
2026-03-31
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing technologies are difficult to effectively degrade zearalenone under acidic conditions. Natural enzymes are easily deactivated in acidic environments, and traditional methods may damage food quality or pose a risk of secondary contamination.

Method used

The hollow cerium dioxide nanozyme, under acidic conditions, works in conjunction with hydrogen peroxide to catalyze the decomposition of zearalenone by reactive oxygen species. It maintains high activity by adjusting the mixed valence state of Ce3+/Ce4+ and the oxygen vacancy structure.

Benefits of technology

100% degradation of zearalenone was achieved under acidic conditions. The reaction was fast, low-cost, and environmentally friendly, avoiding damage to food quality and secondary pollution.

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Abstract

本发明公开了一种在酸性条件下利用二氧化铈纳米酶催化过氧化氢降解玉米赤霉烯酮的方法及应用,属于霉菌毒素脱毒与食品安全技术领域。所述二氧化铈纳米酶具有中空结构，其表面同时存在Ce3+与Ce4+混合价态并富含氧空位，表现出优异的过氧化物模拟酶活。在pH 2.5‑4.5条件下，该纳米酶与过氧化氢协同作用可高效降解玉米赤霉烯酮，1小时内降解率可达100%，解决了天然酶在酸性环境中易失活的问题，适用于食品与饲料的安全控制。
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