scholarly journals Mycotoxins in Foodstuffs: Case of Aflatoxin B1 and Ochratoxin A in Dry Okra and Cassava Chips Marketed in Daloa (Côte d’Ivoire)

Author(s):  
Ehouman Ano Guy Serge ◽  
Kouassi Kouassi Clément ◽  
Kouassi Kra Athanase ◽  
Ehui Edi Jean Fréjus ◽  
Beugre Grah Avit Maxwell ◽  
...  

The mycotoxins are toxic composites frequently found in foodstuffs causing some damages to consumers. This current study has been realised in order to estimate the content of Aflatoxin B1 and Ochratoxin A in dry okra and cassava chips frequently consumed by the population of Daloa. The analysis by chromatography in the liquid phase at high performance has shown that these foodstuffs contain Aflatoxin B1 and Ochratoxin A. These results reveal an average content of : 2.58 ± 3.65 µg/Kg and 3.08 ± 5.04  µg/Kg for the Aflatoxin B1 ; 1.06 ± 0.86 µg/Kg and 0.61±0.24 µg/Kg for the Ochratoxin A respectively in the flour of cassava chips and the powder of dry okra. These concentrations are somewhat to higher than those allowed by the norm of Codex Alimentarius. Under this form, the consumption of these foodstuffs by the population expose them at risk of diseases.

2006 ◽  
Vol 23 (10) ◽  
pp. 1000-1007 ◽  
Author(s):  
Béatrice Sangare-Tigori ◽  
Serge Moukha ◽  
H. James Kouadio ◽  
Anne-Marie Betbeder ◽  
Djédjé Sébastien Dano ◽  
...  

Author(s):  
Ehouman Ano Guy Serge ◽  
Yao N’Zue Benjamin ◽  
Hampoh Ade Hortense ◽  
Fofana Alimata ◽  
Traore Karim Sory ◽  
...  

2018 ◽  
Vol 14 (6) ◽  
pp. 432
Author(s):  
Diarra Moussa ◽  
Kouadio David Léonce ◽  
Aboua Kouassi Narcisse ◽  
Soro Donafologo Baba ◽  
Kouadio Antoine ◽  
...  

The study was done on two species of peppers capsicumannuum and capsicum fructescens. It concerned ninety samples of these two species, collected during three countrysides in two localities of Côte d’Ivoire (Bouake and Dabou). These samples were handled by means of a liquid-phase leading chromatograph SHIMADZU with the aim of determining the residues of pesticides. The observed results revealed a contamination of both species : capsicum annuum and capsicum fructescens, indeed, six residues of pesticides (chlorothalonil, chlorpyrifos, carbendazim, maneb, dimethoate and lambdacyaholothrine) were detected in these two species distributed in four families of pesticides (organochlorines, organophosphates, carbamates and pyrethrinoïds). The analysis showed that pyrethrinoïdes with respective proportions of 76,17% and 75,95% in capsicum annuum and capsicum fructescens were the most important ; followed organophosphate with respective proportions of 10,93% and 20,04% in capsicum annuum and capsicum fructescens.The study also showed that the concentrations of residues of pesticides detected in the edible part (pericarp ) peppers are appreciably equal those found in the part inedible(pulp). However, the residues of pesticides detected in peppers of both localities have all average concentrations lower than the standards established by the Codex Alimentarius.


2016 ◽  
Vol 32 (3) ◽  
pp. 137-143 ◽  
Author(s):  
Pierre Manda ◽  
Ketty Michele Adanou ◽  
Dembelé Ardjouma ◽  
Aholia Jean Baptiste Adepo ◽  
Djédjé Sébastien Dano

2020 ◽  
pp. 91-97
Author(s):  
AKE ASSI Yolande Epouse DATTE ◽  
GNONSORO Urbain Paul ◽  
KOUAKOU Konan Jean-Marie ◽  
KPAN KPAN Kouakou Gains ◽  
BIÉGO Godi Henri ◽  
...  

The determination of pesticides in food products is an essential issue to guarantee food safety and minimize health risks of consumers. In this study, 30 pineapple juice samples were collected randomly from 30 seller through the city of Abidjan (Côte d’Ivoire) and analyzed for the determination of pesticide residues. The aim of the work was to quantify 30 commonly used pesticides (Metolachlor, Chlorpropham, Parathion-methyl, Chlorfenvinphos, Vinclozolin, Parathion-ethyl, Fenuron, Aldicarb, Metoxuron, Monuron, Methabenzthiazuron, Chlortoluron, Monolinuron, Isoproturon, Diuron, Metobromuron, Metazachlor, Buturon, Linuron, Prometryn, Terbutryn, Desisopropylatrazine, Desethylatrazine, Simazine, Cyanazine, Atrazine, Propazine, Terbuthylazine, Metamitron, Crimidine and Metolachlor) in real samples of pineapple juice. The method used for the determination of these analytes in the complex matrices was high-performance liquid chromatography with UV/Visible detector. Results obtained indicate that 30% of the investigated pineapple juices samples are free of pesticides residues or have a level below Limit Of Detection......


Author(s):  
Sira Bamba ◽  
Henri Marius Godi Biego ◽  
Adama Coulibaly ◽  
Nyamien B. Yves ◽  
Sidibe Daouda

Aims: The aim of this work is to assess the level of aflatoxins contamination in maize produced in five regions (Poro, Hambol, Gontougo, Gbêkê, Indénié-Djuablin) of Côte d'Ivoire. Place and duration of study: In this study 375 samples of maize (grains, cobs, spathes) were taken from February 2016 to January 2017 and the aflatoxin analyses were carried out at the Biotechnology Laboratory, Agriculture and Development of Biological Resources of the Félix Houphouët-Boigny University. Methodology: The aflatoxins (B1, B2, G1 and G2) were extracted and assayed by High Performance Liquid Chromatography (HPLC) according to the AOAC method. Results: The results indicate the presence of aflatoxins B1, B2, G1 and G2 in all forms of maize (grains, cobs, spathes) and in the five regions chosen for the study. The mean concentrations of aflatoxins B1 (AFB1) and the total aflatoxins (AFT) varied from 0.79 ± 0.04 µg/kg to 130.31 ± 22.56 µg/kg and from 2.63 ± 2,35 µg/kg to 169.13 ± 40.39 µg/kg respectively. samples from Indénié-Djuablin, Hambol and Gountougo regions showed the highest proportions of non-compliance with the european Union limit of 5 μg/kg and 10 μg/kg. Regarding AFB1, these proportions vary from 0% to 46% in the regions of Gbêkê, Poro and Hambol, while they are between 54% and 96% in the regions of Indénié-Djuablin and Gontougo. For total aflatoxins, the proportions of non-compliant samples were between 0% and 40% (Gbêkê and Poro), 12% and 56% (Hambol), 56% and 96% (Indénié-Djuablin and Gontougo). Conclusion: These results demonstrate a need for monitoring of maize production by stakeholders in the sector who should adopt good agricultural practices.


2021 ◽  
Vol 15 (2) ◽  
pp. 846-859
Author(s):  
Apollinaire Koffi Yeboue ◽  
Mida Roger Guy Kabran ◽  
Anatolievna Elena Sorokina ◽  
Axel Demel Adou ◽  
Christian Kouadio Kouassi ◽  
...  

Honey is a syrupy substance produced by bees, highly rich in monosaccharides (glucose, fructose), which give it a sweet flavor. In Côte d’Ivoire, there is very little information on the honey that is produced. The current work is to our knowledge the first of its kind. Its main objective is to assess the quality of the honey produced in nine localities in Côte d'Ivoire in terms of their physicochemical composition. All of the physicochemical characteristics (refractive index, total acidity, pH, viscosity, electrical conductivity and diastase index were within the limits established by the Codex Alimentarius Commission. The moisture content did not exceed 19.4%, which would indicate that the honey samples have long-term storage capacity and resistance to fermentation. The results were also distinguished by a high sugar content (78.60 - 83.80% of dry matter of honey), mentioning their maturity and nutritional value. In addition, the sucrose content was between 2.14 and 7.61%. Honey's total acidity index found between 7.50 and 24.20 meq/kg, is a proof of their bactericidal activity. The low HMF content (< 60 mg/kg) of most of samples taken reflects their good technological treatment and good quality. The content of fat (0.41 to 0.78 mg/100g) and protein (0.88 to 3.50%) certifies their acceptable nutritional qualities, with a significant energy value (from 396.39 to 402.70 kcal/100g of honey). Thus, the honey collected on Ivorian territory actually meets the requirements of the standards proposed by the Codex Alimentarius Commission.Keywords: Natural honey, physical parameters, physicochemical characteristics, nutritional properties, Côte d'Ivoire.


Author(s):  
Kouamé Désiré ◽  
Niamketchi Gilles Léonce ◽  
Konan Constant ◽  
Konan Ysidor ◽  
Biego G. Henri Marius

Aims: Fungal pathogens are one of the main biological agents causing maize post-harvest loss and affect food security in the country. Thus, this study was conducted to assess fungal pathogens associated to post-harvest maize (Zea mays L.) with especial focus to mycotoxin-producing fungi at producer’s storage condition in different regions of Côte d’Ivoire. Study Design: A total of 1 500 samples of maize as grains, cobs and husks were collected at rate of 500 samples by region (Gbêkê, Poro, Hambol, Indénié-Djuablin and Gontougo) and sent to the laboratory in order to analyse their sanitary quality. Place and Duration of Study: This study was carried out during March 2016 to January 2017. The analyses of the collected sample carried out at the Biotechnology, Agriculture and Valorisation of Biological Resources Laboratory of the Félix Houphouët-Boigny’s University, Abidjan. Methodology: Microbiological analysis was assessed by recording the number of colony in the plate. The contents of aflatoxin and ochratoxin A in the different samples were determined using standard methods. Results: The total microbial species isolated ranged from 104 to 1011 cfu/g with thermotolerants coliforms (103 – 104) and fecal coliforms (102 – 103). The stored maize samples contained also high amount of yeast and molds (104 to 107 cfu/g). Aspergillus genus was the predominantly fungal isolated in all maize samples with tree species which are A. flavus, A. niger and A. versicolor potential producers of mycotoxins. More importantly, stored maize sample as grain, cobs and husks were affected by aflatoxins (B1, B2, G1 and G2) and ochratoxin A. Sixty per cent of the maize samples, mostly husks, showed aflatoxin B1 (from 12.73 to 130.31 µg/kg) and OTA (from 16.75 to 134.21 µg/kg) concentrations above the Maximum Authorized Limit of 5 µg/kg. Conclusion: A significant variability from one region to another can be noticed at level of maize quality regardless the type of maize. The sanitary quality of maize seems to be tied to postharvest treatments (drying), type of storage (grains, cobs and husks) and structure of storage.


2018 ◽  
Vol 51 (4) ◽  
pp. 520-533 ◽  
Author(s):  
Daniele O. Konan ◽  
Lydia Mosi ◽  
Gilbert Fokou ◽  
Christelle Dassi ◽  
Charles A. Narh ◽  
...  

AbstractBuruli ulcer (BU) belongs to the group of neglected tropical diseases and constitutes a public health problem in many rural communities in Côte d’Ivoire. The transmission patterns of this skin infection are poorly defined, hence the current study aimed to contribute to the understanding, perceptions and interpretations of its mode of transmission using a socio-environmental approach. Social and environmental risk factors that may expose people to infection, and the dynamics of local transfer of knowledge and practices related to BU, were assessed in two endemic locations in southern Côte d’Ivoire, i.e. Taabo and Daloa. Data were generated by the administration of a household questionnaire (N=500) between February and June 2012 to assess how the population perceived transmission of BU, focus group discussions with local communities (N=8) to analyse ideologies regarding transmission patterns and semi-structured interviews with patients or their parents, former BU patients and traditional healers (N=30). The interviewees’ empirical knowledge of the disease was found to be close to its biomedical description. Their aetiological perception of the disease was linked to natural (e.g. dirty water, insects) and supernatural (e.g. witchcraft, fate) causes. Some informants attributed the spread of the disease to recently immigrated neighbouring communities whose arrival coincided with an increase in reported BU cases. However, the general consensus seemed to be that the main mode of transmission was contact with infested soil or ulcerated wounds. The participants were aware that BU was a socio-environmental problem in these endemic areas, offering a good starting point for educational campaigns for at-risk communities. Buruli ulcer control programmes should therefore include educational campaigns and Water, Sanitation and Hygiene (WASH) interventions for those at risk in affected communities.


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