Multi-pesticide residue analysis by high resolution mass spectrometry in complementary matrices: wheat flour, lettuce and apple samples

2018 ◽  
Vol 10 (32) ◽  
pp. 3958-3967 ◽  
Author(s):  
Marilda Chiarello ◽  
Sidnei Moura

Nowadays, food contamination with pesticide residues is prevalent, which can cause problems to human health.

2017 ◽  
Vol 1512 ◽  
pp. 78-87 ◽  
Author(s):  
David Moreno-González ◽  
Patricia Pérez-Ortega ◽  
Bienvenida Gilbert-López ◽  
Antonio Molina-Díaz ◽  
Juan F. García-Reyes ◽  
...  

Toxins ◽  
2020 ◽  
Vol 12 (2) ◽  
pp. 114 ◽  
Author(s):  
Alfonso Narváez ◽  
Yelko Rodríguez-Carrasco ◽  
Luigi Castaldo ◽  
Luana Izzo ◽  
Alberto Ritieni

Cannabidiol (CBD) food supplements made of Cannabis sativa L. extracts have quickly become popular products due to their health-promoting effects. However, potential contaminants, such as mycotoxins and pesticides, can be coextracted during the manufacturing process and placed into the final product. Accordingly, a novel methodology using ultra-high-performance liquid chromatography coupled with quadrupole Orbitrap high-resolution mass spectrometry (UHPLC-Q-Orbitrap HRMS) was developed to quantify 16 mycotoxins produced by major C. sativa fungi, followed by a post-target screening of 283 pesticides based on a comprehensive spectral library. The validated procedure was applied to ten CBD-based products. Up to six different Fusarium mycotoxins were found in seven samples, the most prevalent being zearalenone (60%) and enniatin B1 (30%), both found at a maximum level of 11.6 ng/g. Co-occurrence was observed in four samples, including one with enniatin B1, enniatin A and enniatin A1. On the other hand, 46 different pesticides were detected after retrospective analysis. Ethoxyquin (50%), piperonyl butoxide (40%), simazine (30%) and cyanazine (30%) were the major residues found. These results highlight the necessity of monitoring contaminants in food supplements in order to ensure a safe consumption, even more considering the increase trend in their use. Furthermore, the developed procedure is proposed as a powerful analytical tool to evaluate the potential mycotoxin profile of these particular products.


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