Mathematical Modeling for Thermal Lethality of Maize Weevil (Sitophilus zeamais) Adults

The deterioration of dried grains due to the presence of pest insects generates food waste and economic losses. The maize weevil ( Sitophilus zeamais ) is one of the main pests of stored grains. Traditional disinfestation methods are fumigation; however, there is a global claim to eliminate this che...

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Bibliographic Details
Published in:Food and bioprocess technology 2023-08, Vol.16 (8), p.1757-1768
Main Authors: Parisotto, Emanuelle I. B., Caron, Edilson, Teleken, Jhony T., Laurindo, João B., Carciofi, Bruno A. M.
Format: Article
Language:English
Subjects:
Adults
Agriculture
air
bioprocessing
Biotechnology
Chemistry
Chemistry and Materials Science
Chemistry/Food Science
Corn
death
disinfestation
Economic impact
Experimental methods
Food
Food Science
Food waste
Fumigation
Grain
Grain storage
Heat
Heat treatment
Humidity
Insects
Lethality
Mathematical analysis
Mathematical models
Mortality
Pests
Prediction models
Predictions
Sitophilus zeamais
Temperature
Weibull statistics
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Summary:The deterioration of dried grains due to the presence of pest insects generates food waste and economic losses. The maize weevil ( Sitophilus zeamais ) is one of the main pests of stored grains. Traditional disinfestation methods are fumigation; however, there is a global claim to eliminate this chemical process. The present study developed an experimental method for estimating S. zeamais adults' thermal death using hot air (46–62 °C) and proposed models for predicting the survival curves of the insects. Fermi, Gompertz, and Weibull kinetics models described the experimental data accurately. Around 50 °C, an increase of 4 °C reduced by 60% the time to kill all insects. Temperatures above 60 °C killed the insects within a few minutes (
ISSN:1935-5130
1935-5149
DOI:10.1007/s11947-023-03026-z