Niveaux de résidus de pesticides organochlorés dans les produits du cacao en Côte d’Ivoire

Biego, H. M.; Coulibaly, A; Koffi, MK; Chatire, O. K.; Kouadio, L. P.

doi:10.4314/ijbcs.v3i2.44509

Cited by 7 publications

(7 citation statements)

References 5 publications

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“…Dans le secteur agricole, un des principaux facteurs qui causent des dommages à l'environnement est la pollution causée par l'utilisation de pesticides chimiques pour le contrôle des insectes nuisibles et des microorganismes phytopathogènes (Vu, 2009;Pohé, 2012). Cette utilisation a permis une amélioration des rendements agricoles (Biego et al, 2009).…”

Section: Introductionunclassified

“…Cependant, ces dernières années, les pesticides chimiques ont été l'objet de critiques substantielles en raison des effets défavorables sur l'environnement (Mpika, 2010). Leur application en agriculture, selon Biego et al (2009), suscite de nombreuses inquiétudes liées à leur toxicité ainsi qu'à leur influence négative sur la santé humaine. Au regard de ce qui précède et relativement au sujet de la nocivité des substances chimiques, la conscience environnementale pose, aujourd'hui, avec une certaine acuité la question de la sécurité chimique (ou risque chimique).…”

Section: Introductionunclassified

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Utilisation du broyat de péricarpes des cabosses de cacao comme milieu de culture alternatif pour la production de Bacillus thuringiensis var. kurstaki HD-1

Gadji¹,

Yapo²,

Abo³

et al. 2016

Int. J. Bio. Chem. Sci

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Nos remerciements à l'Association des Universités Africaines (AUA) pour leur appui financier. RESUME La recherche de matières premières alternatives pour la production de biopesticides microbiens suscite beaucoup d'intérêts. La présente étude s'est proposée d'utiliser le broyat de péricarpes des cabosses de cacao comme substrat de fermentation pour produire Bacillus thuringiensis var. kurstaki HD-1 (Btk HD-1). Les échantillons de péricarpes des cabosses ont été collectés dans une plantation cacaoyère de Toumokro à Yamoussoukro en Côte d'Ivoire. Les paramètres physico-chimiques ont été déterminés selon les méthodes standards. Le substrat de fermentation a été autoclavé, 2 fois successivement, à 121 °C pendant 30 min et ensemencé avec 4% de l'inoculum de Btk HD-1. Il ressort de cette étude que les teneurs en carbone et en azote total ont été respectivement de 79.7% et 1.4%. Les concentrations en minéraux du substrat ont été plus élevées en calcium (8406.5 mg/kg) et en potassium (8248.8 mg/kg) qu'en magnésium (632.6 mg/kg), sodium (471.5 mg/kg), fer (57 mg/kg), cuivre (52.8 mg/kg), zinc (51.8 mg/kg) et manganèse (44.3 mg/kg). Le dénombrement des cellules et des spores viables a donné respectivement 3.2.10 11 et 3.02.10 11 UFC/ml, pour le surnageant, et 6.5.10 13 et 5.02.10 13 UFC/ml, pour le culot. Ce substrat végétal offre une bonne perspective pour la production d'un biopesticide à base de Btk HD-1.

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Section: Introductionunclassified

Utilisation du broyat de péricarpes des cabosses de cacao comme milieu de culture alternatif pour la production de Bacillus thuringiensis var. kurstaki HD-1

Gadji¹,

Yapo²,

Abo³

et al. 2016

Int. J. Bio. Chem. Sci

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“…Results of this study point to unsafe practices such as excessive pesticide use, non-compliance with recommended rates of pesticide and repeated pesticide use (reapplication of pesticide and on crops), these practices lead to potential exposures to pesticide residues in vegetables and soils. In other studies conducted by Biego et al (2009), Naré et al (2015) and Son et al (2018) with the aim to assess the attitude and practices of farmers pointed to the pesticide misuse, which was a real risk of vegetables and soils contamination. Non-compliance with pre-harvest intervals observed in our study, increases the presence pesticide residues in vegetables.…”

Section: Environmental and Health Risks Of Pesticide Usementioning

confidence: 99%

Assessment of the impact of pesticide use in urban and periurban agriculture in Abidjan, Côte d’Ivoire

Mambe-Ani¹,

Ouattara²,

Elleingand³

et al. 2020

Int. J. Bio. Chem. Sci

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Pesticides are used in agriculture for the control of pests and weedy species. Unfortunately, these chemicals are a potential risk for environment contamination and human toxicity. Market gardening soils are vulnerable to human activities because of the pesticide use. The objective of this work was to make a rapid and adequate diagnosis of the conditions of pesticide use by market gardeners. Thus, a view to assess the real impact of their use on the risk of soil pollution has been established. For this purpose, interviews and questionnaires were submitted to 243 market gardeners in Port-Bouët, Songon and Bingerville. 100% of farmers use chemical pesticides on their farms. The most pesticides used are insecticides, fungicides and herbicides. 92% of farmers have a low education level and only 4.33% of them have received a good agricultural practices training. Unsafe practices such as fraudulent use of unregistered pesticides, noncompliance with recommended rates of pesticide, the use of cotton pesticides and persistent molecules have been observed. These practices increase the risk inherent of environment pollution and vegetables.

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“…Unfortunately, the use of the latter, in the fight against these pests, has a negative impact on the health of the consumer and the environment [12]. In Côte d'Ivoire, organochlorine chemical pesticides were found at concentrations ranging from 2 to 59.7 μg / kg in cocoa bean stocks and between 2 and 237 μg / kg in kola nut stocks [13,14]. It is important to face these problems, to find other alternative methods of fight accessible to the farmers, respectful of the environment and guaranteeing the health of the consumers.…”

Section: Introductionmentioning

confidence: 99%

Evolution of Merchantability during Storage of Maize Triple Bagged Containing Biopesticides (Lippia multiflora and Hyptis suaveolens)

Gaël

Constant

Léonce

et al. 2020

EJNFS

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The aim of study was to evaluate merchantability quality of stored maize in triple bagging with biopesticides. Maize grains were collected in March 2016 in the north of Côte d’Ivoire. The fresh leaves of Lippia multiflora and Hyptis suaveolens were collected and dried in sunlight for 7 days in the center of Cote d'Ivoire. Triple bags were bought in Abidjan market. All this material was sent to the Laboratory of Biochemistry and Food Sciences, Félix Houphouët-Boigny University, Côte d’Ivoire, to perform the experiment. Ten treatments were obtained for the experimentation. The first treatment was conservation of 50 kg of maize grain in a polypropylene bag. The second treatment was conservation of 50 kg of maize grain in a PICS bag. The other eight treatments were carried out with PICS bags each containing 50 kg of maize grain and different proportions of chopped leaves Lippia multiflora and Hyptis suaveolens. A central composite design was used for sample constitution. Thus, a control group with polypropylene bags (TPPB0), a control group in PICS bags without biopesticides (TPB0) and 8 experimental lots of triple bags noted TB1 containing 0.625 kg L. multiflora and 0.625 kg H. suaveolens, TB2 with 0.40 kg of L. multiflora and 1.60 kg of H. suaveolens, TB3 with 1.60 kg of L. multiflora and 0.40 kg of H. suaveolens, TB4 with 0.10 kg of L. multiflora and 0.40 kg of H. suaveolens, TB5 with 0.40 kg of L. multiflora and 0.10 kg of H. suaveolens, TB6 with 2.5 kg of L. multiflora and 2.5 kg of H. suaveolens, TB7 with 1.25 kg of L. multiflora and TB8 with 1.25 kg of H. suaveolens have been used. Changes in moisture, damages and weight losses were studied. The results show moisture levels (from 09.02±0.11% to 12.07± 0.06%), weight loss (from 0.49±0.02% to 2.54±0.07%) and damage (from 0.99±0.02% to 3.96± 0.01%), corn stored in triple bagged bags with different proportions of biopesticide were significantly lower than those recorded in the Polypropylene woven sample bag (TPPB0) and in the triple bagged control bag during the storage period. The results obtained indicate stability in the quality of maize stored for 18 months in triple bagged bags containing different proportions of leaves of L. multiflora and H. suaveolens. A proportion of 5% of the mixture of leaves of L. multiflora and H. suaveolens (2.5 kg of L. multiflora and 2.5 kg of H. suaveolens) in triple bagged bags is recommended for a better preservation of the merchantability of the stored maize grains kernels. Storage of maize grains in PICS bags with the leaves of L. multiflora and H. suaveolens appears as a method of effective and inexpensive conservation to ensure the merchantability quality of maize.

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Niveaux de résidus de pesticides organochlorés dans les produits du cacao en Côte d’Ivoire

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Cited by 7 publications

References 5 publications

Utilisation du broyat de péricarpes des cabosses de cacao comme milieu de culture alternatif pour la production de <i>Bacillus thuringiensis</i> var. <i>kurstaki</i> HD-1

Utilisation du broyat de péricarpes des cabosses de cacao comme milieu de culture alternatif pour la production de <i>Bacillus thuringiensis</i> var. <i>kurstaki</i> HD-1

Assessment of the impact of pesticide use in urban and periurban agriculture in Abidjan, Côte d’Ivoire

Evolution of Merchantability during Storage of Maize Triple Bagged Containing Biopesticides (Lippia multiflora and Hyptis suaveolens)

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