Journal
JOURNAL OF STORED PRODUCTS RESEARCH
Volume 77, Issue -, Pages 89-91Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.jspr.2018.03.005
Keywords
Aspergillus flavus; Mycotoxins; Maize weevil; Stored product pests; Control
Categories
Funding
- Instituto Nacional de Investigacion y Tecnologia Agraria y Alimentaria [RTA2014-00006-C02-01]
- CERCA Programme (Generalitat de Catalunya)
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The weevil Sitophilus zeamais (Motschulsky), the maize weevil, is a pest of stored maize that can cause feeding damage and lead to the proliferation of toxigenic fungi. The application of modified atmospheres with a high concentration of CO2 is an alternative method for the control of S. zeamais and the inhibition of fungal growth. The objectives of the study were to determine the effect of S. zeamais infestation, grain damage and grain moisture content on aflatoxin production by Aspergillus flavus on maize, and the impact of high CO2 modified atmosphere packaging on pest infestation and aflatoxin production. Mycotoxin production was only recorded when maize was infested with S. zeamais and had A. flavus inoculum. However, production of mycotoxins was not recorded when the maize was mechanically damaged and stored at 18% moisture content, indicating that the biological activity of the insect was determinant in the production of mycotoxins. The high CO2 modified atmosphere packaging tested (90% CO2, 5% O-2 and 5% N-2) prevented mycotoxin production. (C) 2018 Elsevier Ltd. All rights reserved.
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