Artículo
Evaluation of food grade antioxidant formulation for sustained antifungal, antiaflatoxigenic and insecticidal activities on peanut conditioned at different water activities
García, Daiana
; Girardi, Natalia Soledad
; Passone, Maria Alejandra
; Nesci, Andrea Verónica
; Etcheverry, Miriam Graciela
Fecha de publicación:
01/2016
Editorial:
Pergamon-Elsevier Science Ltd
Revista:
Journal of Stored Products Research
ISSN:
0022-474X
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
The aim of this study was to investigate antifungal and insecticidal activity of two microencapsulated antioxidants: 2(3)-tert-butyl-4 hydroxyanisole (BHA) and 2,6-di(tert-butyl)-p-cresol (BHT) against Aspergillus section Flavi and Oryzaephilus surinamensis (L.), a vector carrier of aflatoxigenic fungi on stored peanuts. Susceptibility of Aspergillus section Flavi, insects, and aflatoxin B1 accumulation in sterile peanut kernels conditioned at two different water activities (aw) (0.83 aw and 0.95 aw) was determined with different doses of antioxidant formulations (10, 20 and 30 mM) during 45 days. Moreover, Aspergillus section Flavi isolation frequency from live and dead insects was evaluated. The BHA formulation completely inhibited Aspergillus section Flavi development regardless of aw and doses assayed. Antifungal effect of microencapsulated BHT was highly dependent on aw, with 86e100% fungal inhibition at 20 and 30 mM, at the lowest aw (0.83 aw) and at the end of the experiment. No aflatoxin accumulation was detected in samples treated with the BHA formulation. In general, low levels of Aspergillus section Flavi were detected in dead insects. Our results show efficacy for 45 days, in addition microencapsulated BHT could be an alternative to control peanut pests in dry kernels.
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Articulos(CCT - CORDOBA)
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - CORDOBA
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - CORDOBA
Citación
García, Daiana; Girardi, Natalia Soledad; Passone, Maria Alejandra; Nesci, Andrea Verónica; Etcheverry, Miriam Graciela; Evaluation of food grade antioxidant formulation for sustained antifungal, antiaflatoxigenic and insecticidal activities on peanut conditioned at different water activities; Pergamon-Elsevier Science Ltd; Journal of Stored Products Research; 65; 1-2016; 6-12
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