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J Agric Food Chem


Title:Effect of Selected Volatiles on Two Stored Pests: The Fungus Fusarium verticillioides and the Maize Weevil Sithophilus zeamais
Author(s):Zunino MP; Herrera JM; Pizzolitto RP; Rubinstein HR; Zygadlo JA; Dambolena JS;
Address:"Instituto Multidisciplinario de Biologia Vegetal (IMBiV-CONICET), Universidad Nacional de Cordoba - ICTA , Avenida Velez Sarsfield 1611, Cordoba X5016GCA, Argentina. Instituto de Ciencia y Tecnologia de los Alimentos (ICTA), FCEFyN - UNC, Avenida Velez Sarsfield 1611, Cordoba X5016GCA, Argentina. CIBICI (CONICET), Departamento de Bioquimica Clinica, Facultad de Ciencias Quimicas, Universidad Nacional de Cordoba, Ciudad Universitaria , Cordoba X5016GCA, Argentina"
Journal Title:J Agric Food Chem
Year:2015
Volume:20150818
Issue:35
Page Number:7743 - 7749
DOI: 10.1021/acs.jafc.5b02315
ISSN/ISBN:1520-5118 (Electronic) 0021-8561 (Linking)
Abstract:"New agronomic practices and technology enabled Argentina a larger production of cereal grains, reaching a harvest yield of 26.5 million metric tons of maize, of which, about 40% was exported. However, much of the maize production is lost annually by the attack of fungi and insects (2.6 million tons). In this study, the antifungal effect of selected volatiles on Fusarium verticillioides, its mycotoxin production, and the repellent and insecticidal activities against the weevill Sithophilus zeamais, an insect vector of F. verticillioides, were evaluated. The compounds tested were (2E)-2-hexenal, (2E)-2-nonenal, (2E,6Z)-2,6-nonadienal, 1-pentanol, 1-hexanol, 1-butanol, 3-methyl-1-butanol, pentanal, 2-decanone, and 3-decanone, which occur in the blend of volatile compounds emitted by various cereal grains. The most active antifungals were the aldehydes (2E)-2-nonenal, (2E)-2-hexenal, and (2E,6Z)-2,6-nonadienal (minimum inhibitory concentration values of <0.03, 0.06, and 0.06 mM, respectively). The occurrence of fumonisin B1 also was prevented because these compounds completely inhibited fungal growth. The best insecticidal fumigant activities against the maize weevil were shown by 2-decanone and 3-decanone (lethal concentration
Keywords:1-Butanol/pharmacology Aldehydes/pharmacology Animals Antifungal Agents/*pharmacology Food Storage Fusarium/*drug effects/growth & development/metabolism Hexanols/pharmacology Insecticides/*pharmacology Mycotoxins/metabolism Volatile Organic Compounds/*ph;
Notes:"MedlineZunino, Maria P Herrera, Jimena M Pizzolitto, Romina P Rubinstein, Hector R Zygadlo, Julio A Dambolena, Jose S eng Research Support, Non-U.S. Gov't 2015/08/11 J Agric Food Chem. 2015 Sep 9; 63(35):7743-9. doi: 10.1021/acs.jafc.5b02315. Epub 2015 Aug 18"

 
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