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Influence Of Container Nature Temperature And Duration Of Storage On Fungicide Epoxiconazole Disappearance From Fresh Kolanuts

Journal: International Journal of Scientific & Technology Research (Vol.3, No. 2)

Publication Date:

Authors : ; ; ; ; ;

Page : 94-97

Keywords : Index Terms Fungicide-epoxiconazole; bio-persistence-low; Container-nature-influence;

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Abstract The conservation of fresh kolanuts by farmers in Africa poses a veritable problem occasioning enormous economic loss. Fungicide epoxiconazole has been found as best way to reduce or avoid mould and mycotoxins secretion. In the aim to evaluate the bio-persistence of its residue in kolanuts the present study has been carried out by treatment of kolanuts with epoxiconazole at concentration of 0.15gl. Samples for epoxiconazole residue analysis were collected at 0 7 15 and 30 days in order to follow the elimination of the pesticide residue. In parallel the incidence of the temperature and the nature of kolanuts container on the bio-persistence of epoxiconazole reside has evaluated. As results a rapid elimination of epoxiconazole has been observed but varied following the nature of kolanuts container. After only 7 days of storage the fungicide was undetected LD 0.017mgkg with the polyvinyl chloride PVC container. The efficiency of traditional container made by leaves of Thaumatococcus daniellii has also been demonstrated with disappearance of the residue at 15 days of storage. The third container made by perforated cardboard retarded the residue elimination until 30 days. Temperatures 26 or 29C have not demonstrated their difference in epoxyconazole residue elimination from kolanuts. Taken together our results suggested the bio-persistence of epoxiconazole residue in kolanuts after the treatment was very low but influenced by the nature of kolanuts container. In addition to its bio-efficiency previously demonstrated the fungicide epoxiconazole may be an alternative to improve the conservation of kolanuts by farmers in Cte dIvoire.

Last modified: 2015-06-28 03:51:43