Skip to content
Journal Title Abbrev.
J. Elem.
ISSN – 1644-2296
DOI: 10.5601

Search article

Language
flag flag
Spinosad decay dynamics and mineral content of some elements in chosen vegetables

Issue: 2/2017

Recevied: Feb 26, 2016

Accepted: Feb 05, 2017

Published: March 6, 2017

Authors:

Sikorska-Zimny K., Wędzisz A., Rogowska M.

Categories: Agricultural, Biology and microbiology, Food science

DOI: 10.5601/jelem.2016.21.1.1135

Abstract:

Spinosad is an insecticide with a completely unique and novel mode of action. It is used in a great variety of crops: fruit, vegetables, and ornamental plants. Its dissipation was studied in three vegetables: cabbage (the cultivar Stonehead), carrot (cv. Perfekcja) and onion (cv. Wolska). The vegetables were sprayed with a dose of 96 g a.i. ha-1 of spinosad and collected after 1, 3, 5, and 7 days. The residues were analyzed using high-performance liquid chromatography (HPLC) with ultraviolet (UV) detection after purification on a column with methanol. Elements were determined with flame atomic absorption spectroscopy (FAAS), and the determinations were made on the 1st and 7th day after spraying. The determined amounts of spinosad were in the range of 0.943-0.072 mg kg-1 for carrot and onion, respectively, on the 7th day. Spinosad decomposed completely in cabbage, and the highest level of the pesticide after 7 days remained in carrot, although the shape of all decomposition curves is quite similar. Most elements in onion were on significantly higher levels after sprays than in the control variant, opposite to cabbage, where higher levels of the analyzed elements were determined in the control. Concentrations of the elements determined in carrot were statistically significant for manganese, iron and magnesium. The spinosad decomposition time and the content of elements depend on the species of vegetables. The amount of spinosad on day 7 found in onion and cabbage was equal to the Maximum Residue Level (MRL) available in the literature.

Citation:

quote-mark
Sikorska-Zimny K.M., Wędzisz A., Rogowska M. 2017. Spinosad decay dynamics and mineral content of some elements in chosen vegetables. J. Elem., 22(2): 737 - 746. DOI: 10.5601/jelem.2016.21.1.1135

Keywords:

Spinosad, vegetables, HPLC with UV, column purification, MRL, elements

About issue:

22.2.2017
Download article
Jsite