The first results of analysis of residues in mealworms and Jamaican field crickets fed by carrot treated by pesticides

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60460709%3A41210%2F24%3A98688" target="_blank" >RIV/60460709:41210/24:98688 - isvavai.cz</a>

Alternative codes found

RIV/60461373:22330/24:43929289

Result on the web

<a href="https://brill.com/view/journals/jiff/10/13/jiff.10.issue-13.xml" target="_blank" >https://brill.com/view/journals/jiff/10/13/jiff.10.issue-13.xml</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1163/23524588-20241013" target="_blank" >10.1163/23524588-20241013</a>

Result language

angličtina

Original language name

The first results of analysis of residues in mealworms and Jamaican field crickets fed by carrot treated by pesticides

Original language description

As the published data on hazardous chemicals in reared insects as well as data on accumulation of chemical contaminants from the substrates are very limited, we decided to investigate the occurrence of pesticide residues in the laboratory-farmed Jamaican field crickets and mealworms. The experimental insects were provided by carrots, which were treated with pesticides (containing fluazifop, pirimicarb, azoxystrobin, difenoconazole, and tebuconazole) once or twice during their growth. The control groups were fed by untreated carrots. Then, the presence of pesticide residues in insect samples was analyzed using high-resolution mass spectrometry. It was demonstrated that both Jamaican field crickets and mealworms took up fluazifop and tebuconazole. Long-term exposure to carrots with incurred residues of these pesticides led to the formation of conjugated or bound residues in insects. Fluazifop-P concentrations were in the range of 0.004-0.014 mg · kg-1 in crickets and in the range of 0.003-0.006 mg · kg-1 in mealworms. Residues of tebuconazole were detected only in the samples of crickets (0.001-0.070 mg · kg-1). A statistically significant difference was found between the insects fed by the carrots treated with pesticides once and twice in the case of fluazifop (both insect species) and tebuconazole (crickets). After starvation of insects, commonly used before processing edible insects, a significant decrease in residue concentration was observed. Nevertheless, no sample of tested insects was considered non-compliant after taking into account the measurement uncertainty even though the residue concentration of fluazifop-P in six samples of crickets exceeded the MRL (0.01 mg · kg-1) from Regulation (EC) No.396/2005.

Czech name

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Czech description

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Type

O - Miscellaneous

CEP classification

—

OECD FORD branch

10613 - Zoology

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2024

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů