A sensitive semi-quantitative analysis of patent blue v in drinks with SERS

Main Article Content

S. Chen Jiangxi Province Key Laboratory of Animal Nutrition/Engineering Research Center of Feed Development, Jiangxi Agricultural University, Nanchang 330045, China P.R.; College of Food Science and Engineering, Jiangxi Agricultural University, Nanchang 330045, China P.R
K.-H. Ouyang Jiangxi Province Key Laboratory of Animal Nutrition/Engineering Research Center of Feed Development, Jiangxi Agricultural University, Nanchang 330045, China P.R
R.-M. Wu Optics-Electrics Application of Biomaterials Lab, Jiangxi Agricultural University, Nanchang 330045, China P.R
P. Guo Jiangxi Institute for Food Control, Nanchang 330038, China P.R
W.-J. Wang Jiangxi Province Key Laboratory of Animal Nutrition/Engineering Research Center of Feed Development, Jiangxi Agricultural University, Nanchang 330045, China P.R.; College of Food Science and Engineering, Jiangxi Agricultural University, Nanchang 330045, China P.R
D. Wang Jiangxi Institute for Food Control, Nanchang 330038, China P.R

Keywords

patent blue v, analytical methods, biotechnology, contaminants, crops

Abstract

Patent blue v, one of synthetic colours, is commonly used to improve the appearance of foods in Europe, but the health concerns associated with synthetic colours has been sometimes reported. In present study, a sensitive and simple analytical method for patent blue v in drinks was established by surface enhanced Raman scattering (SERS). Two gold nanoparticles synthetic methods were compared and the characteristic peaks for patent blue v were certified by density functional theory. The results showed that the intensity of 1,182 cm-1 semi-quantitative peak was proportional to the concentration of patent blue v. The detection limit concentrations were among 0.5 to 1.0 mg/kg in different drinks. The relative standard deviations were below 7.75%, and the average recovery rate was in the range from 92.09% to 104.55%. In conclusion, the application of SERS method has a promising prospect in drinks to detect patent blue v because of its simplicity and efficiency.


 
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Published
2019-12-15

Article Details

Issue
Vol. 11 No. 8 (2019)
Section
Research Article