A rapid Raman detection of deoxynivalenol in agricultural products

Jing Yuan; Chuanwen Sun; Xiaoyu Guo; Tianxi Yang; Hui Wang; Shuyue Fu; Chuanchuan Li; Haifeng Yang

doi:10.1016/j.foodchem.2016.11.101

A rapid Raman detection of deoxynivalenol in agricultural products

Food Chem. 2017 Apr 15:221:797-802. doi: 10.1016/j.foodchem.2016.11.101. Epub 2016 Nov 22.

Authors

Jing Yuan¹, Chuanwen Sun², Xiaoyu Guo³, Tianxi Yang³, Hui Wang³, Shuyue Fu³, Chuanchuan Li³, Haifeng Yang⁴

Affiliations

¹ Department of Biology, Shanghai Normal University, Shanghai 200234, PR China.
² Department of Biology, Shanghai Normal University, Shanghai 200234, PR China. Electronic address: willin@shnu.edu.cn.
³ The Education Ministry Key Lab of Resource Chemistry, International Joint Laboratory on Resource Chemistry, Shanghai Key Laboratory of Rare Earth Functional Materials, and Shanghai Municipal Education Committee Key Laboratory of Molecular Imaging Probes and Sensors, Department of Chemistry, Shanghai Normal University, Shanghai 200234, PR China.
⁴ The Education Ministry Key Lab of Resource Chemistry, International Joint Laboratory on Resource Chemistry, Shanghai Key Laboratory of Rare Earth Functional Materials, and Shanghai Municipal Education Committee Key Laboratory of Molecular Imaging Probes and Sensors, Department of Chemistry, Shanghai Normal University, Shanghai 200234, PR China. Electronic address: hfyang@shnu.edu.cn.

PMID: 27979275
DOI: 10.1016/j.foodchem.2016.11.101

Abstract

Mycotoxin results in financial damage and considerable safety risks. In this paper, the possibility of portable Raman system-based surface-enhanced Raman scattering (SERS) for a rapid detection of deoxynivalenol (DON) a mycotoxin in cereals was investigated. Under an optimized condition, SERS analysis for pure DON solution has a wide dynamic concentration range from 10^-7M to 10^-2M with the limit of detection (LOD) down to 100nM. Density functional theory (DFT) analysis at the level of B3LYP/6-311++G(d, p) was also preformed for vibrational assignment. For practical application, the LOD of the proposed Raman method for both DON-contaminated corns and kidney beans were validated as 10^-6M and the LOD for DON-contaminated oats was 10^-4M. As a perspective, the SERS-based technology could be developed into an alternatively promising assay for on-field detection of DON residues at various cereals due to it high sensitivity and selectivity.

Keywords: AgNPs; Deoxynivalenol; Surface enhanced Raman scattering (SERS).

MeSH terms

Crops, Agricultural / chemistry
Crops, Agricultural / microbiology*
Edible Grain / chemistry
Edible Grain / microbiology
Food Contamination / analysis*
Food Microbiology
Limit of Detection
Metal Nanoparticles
Silver / chemistry
Spectrum Analysis, Raman*
Trichothecenes / analysis*

Substances

Trichothecenes
Silver
deoxynivalenol