4.7 Article

Liquid chromatography-mass spectrometry method for evaluating the dissipation dynamics of cyromazine and its metabolite in Agaricus bisporus and dietary risk assessment

Journal

ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
Volume 25, Issue 3, Pages 2285-2292

Publisher

SPRINGER HEIDELBERG
DOI: 10.1007/s11356-017-0658-y

Keywords

Cyromazine and melamine; Dissipation; Bioconcentration; Agaricus bisporus; Dietaryriskassessment

Funding

  1. National Major Project for Agro-product Quality & Safety Risk Assessment [GJFP2017006]
  2. National Natural Science Foundation of China [31602124]
  3. Shanghai Agriculture Applied Technology Development Program, China [G20160502]

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Providing guidance on the reasonable use of pesticide in agricultural production is of particular importance for ensuring food safety. In the present study, a field trial was performed to study the dissipation and accumulative pattern of cyromazine (CA) and its metabolite in Agaricus bisporus (A. bisporus) cultivation. An ultra-performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS) method was first developed and validated for the determination of CA and melamine (MEL) in the casing soil and fruiting body. During the cultivation period, the dissipation rates of CA in the casing soil were between 51.57 and 63.48% at three dose groups. The fruiting body presented higher accumulation ability for MEL compared with CA. The terminal residues of MEL never exceeded the maximum residue limits (MRLs) in food. In addition, the intake health risk from the CA and MEL residues in the fruiting body were negligible to humans. This study will help to provide valuable guidance on the application strategies of CA in A. bisporus cultivation.

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