scholarly journals Diversity of Filamentous Molds Producing Mycotoxins in Rice Called "Deni Kachia" Sold on the Markets of Daloa (Côte d’Ivoire)

2021 ◽  
pp. 106-112
Author(s):  
Kra Athanase Kouassi ◽  
Ano Guy Serge Ehouman ◽  
Kouassi Clément Kouassi ◽  
Ibrahim Konate
Keyword(s):  
Secondary Metabolites ◽  
Filamentous Fungi ◽  
Cote D'ivoire ◽  
Côte D’Ivoire ◽  
Animal Products ◽  
Organoleptic Quality ◽  
Public Markets ◽  
Microscopic Identification ◽  
The City

Filamentous fungi are frequent contaminants of many plant substrates and certain animal products. Their presence can improve the organoleptic quality of the product or alter it and lead to the accumulation of toxic secondary metabolites, such as mycotoxins. The objective of this work is to characterize the filamentous fungi isolated from the rice "deni kachia" stored and sold on public markets in the city of Daloa. A count and isolation of filamentous fungi, followed by macroscopic and microscopic identification was carried out. Several genera of filamentous fungi was identified. These are the genera Aspergillus, Penicillium and others. The different species of molds identified by conventional biochemical techniques were confirmed by the API 50 CH freezer.The genera Aspergillus and Penicillium are the most predominant in the samples analyzed. The presence of these species with their ability to produce mycotoxins suggests that contaminated rice poses a risk to the health of consumers.

Insecticide Resistance Patterns and Mechanisms in Aedes aegypti (Diptera: Culicidae) Populations Across Abidjan, Côte d’Ivoire Reveal Emergent Pyrethroid Resistance

2021 ◽  
Author(s):  
Lucien Yao Konan ◽  
Welbeck Achille Oumbouke ◽  
Urbain Garhapié Silué ◽  
Ibrahima Zanakoungo Coulibaly ◽  
Jean-Claude Tokou Ziogba ◽  
...  
Keyword(s):  
Aedes Aegypti ◽  
Cote D'ivoire ◽  
Côte D’Ivoire ◽  
Pyrethroid Resistance ◽  
Population Based ◽  
Cote D’Ivoire ◽  
Low Frequencies ◽  
Larval Habitats ◽  
Côte D'ivoire ◽  
The City

Abstract From 2008 to 2017, the city of Abidjan, Côte d’Ivoire experienced several Aedes-borne disease epidemics which required control of the vector mosquito population based on the reduction of larval habitats and insecticidal sprays for adult mosquitoes. This study was undertaken to assess the insecticide susceptibility status of Aedes aegypti (Linnaeus) in the city of Abidjan. Immature Ae. aegypti were sampled from several larval habitats within seven communes of Abidjan and reared to adults. Three to five days old F1 emerged adults were tested for susceptibility using insecticide-impregnated papers and the synergist piperonyl butoxide (PBO) following WHO bioassay guidelines. The results showed that Ae. aegypti populations from Abidjan were resistant to 0.1% propoxur, and 1% fenitrothion, with mortality rates ranging from 0% to 54.2%. Reduced susceptibility (93.4–97.5% mortality) was observed to 0.05% deltamethrin, 0.75% permethrin, 0.05% lambda-cyhalothrin, 5% malathion, and 0.8% chlorpyrifos-methyl. This reduced susceptibility varied depending on the insecticide and the collection site. The restoration of mortality when the mosquitoes were pre-exposed to the synergist PBO suggests that increased activity of oxidases could be contributing to resistance. Three kdr mutations (V410L, V1016I, and F1534C) were present in populations tested, with low frequencies for the Leu410 (0.28) and Ile1016 (0.32) alleles and high frequencies for the Cys1534 allele (0.96). These findings will be used to inform future arbovirus vector control activities in Abidjan.

Identification of Maize Insects and Fungi Affecting Sanitary and Physiological Quality of Stored maize Grains in Central Cote d'Ivoire

2021 ◽  
Vol 13 (1) ◽  
pp. 36-45
Author(s):  
Mah A. Kakou ◽  
Nahoulé A. Adja ◽  
Félicia Johnson ◽  
Adjoa M.J. Kouad ◽  
Eric-Olivier Tienebo ◽  
...  
Keyword(s):  
Cote D'ivoire ◽  
Côte D’Ivoire ◽  
Cote D’Ivoire ◽  
Côte D'ivoire ◽  
Physiological Quality

Combining multi-criteria decision analysis with GIS approaches for decentralized organic wastes composting plants site selection in Tiassalé, Southern Côte d’Ivoire

2021 ◽  
pp. 0734242X2110381
Author(s):  
Dotanhan Yeo ◽  
Kouassi Dongo ◽  
Eliachie Larissa Eméline Angoua ◽  
Adeline Mertenat ◽  
Phillipp Lüssenhop ◽  
...  
Keyword(s):  
Decision Analysis ◽  
Cote D'ivoire ◽  
Site Selection ◽  
Côte D’Ivoire ◽  
Geographical Information ◽  
Basic Field ◽  
Cote D’Ivoire ◽  
Multi Criteria Decision Analysis ◽  
Côte D'ivoire ◽  
The City

In recent years, decentralized composting appeared as one of the most appropriate treatment options for organic waste valorization in low- and middle-income countries. In Cote d’Ivoire, a pilot project has proved the feasibility of organic municipal solid waste composting for the city of Tiassalé. However, numerous issues still need to be addressed for the establishment of a sustainable decentralized composting system in this city. One of the key issues is site selection. Until now, there is no clear model for such plant site selection. In this study, multi-criteria decision analysis (MCDA) and geographical information system (GIS) approaches were combined to develop an appropriate model for selecting decentralized composting sites in the city of Tiassalé. The methodology used involved two different and complementary phases. First, MCDA and GIS techniques were used to identify the most suitable site areas. Seven criteria clustered in three main factors (environmental, social and economic), and five constraints were considered in the analysis process. Second, five sites were selected within the most suitable areas after a basic field visit and ranked using the Analytic Hierarchy Process. The results showed that the most suitable spaces for decentralized composting plant siting represent only 2.6% of the study area. The investigation yielded on the selection of the two best options for decentralized composting plant siting for the city of Tiassalé. This study proved that the combination of MCDA and GIS is a practical and efficient method to identify suitable sites for decentralized composting plants.

scholarly journals Assessment of Nutritive Quality of Maize (Zea mays L.) Produced and Stocked from Rural Conditions in Côte d’Ivoire

2021 ◽  
pp. 22-32
Author(s):  
Kouamé Désiré ◽  
Biego Henri Marius ◽  
Niamketchi Gilles Léonce ◽  
Konan Ysidor ◽  
Sidibé Daouda
Keyword(s):  
Zea Mays ◽  
Cote D'ivoire ◽  
Côte D’Ivoire ◽  
Zea Mays L ◽  
Laboratory Unit ◽  
Cote D’Ivoire ◽  
Côte D'ivoire ◽  
Nutritive Quality ◽  
Significant Difference

Aims: Maize (Zea mays L.) is a major staple food for millions of people in Côte d’Ivoire. Due                         to its high productivity and low cost of calorie it is preferred crop for food security of the                      country. Thus, this study was conducted to assess nutritive quality of maize produced and               stocked in five purposively selected regions of Côte d’Ivoire which represents five agroecological settings. Study Design: A total of 1500 samples of maize as grains, epis and spathes 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 nutritional quality. Place and Duration of Study: This study was carried out during March 2016 to January 2017. The collected sample were carried out at the laboratory unit of Food Sciences and Biochemistry of the Félix Houphouët-Boigny University, Abidjan. Methodology: Proximate analyses were carried out using standard methods AOAC (2000). Results: The results show significant difference from the biochemical compositions of maize type and region. Mean value intervals were as follow: dry matter (85.83 – 91.42%), ash (1.19 - 2%), proteins (7.99 - 9.32), lipids (3.21 - 4.47), carbohydrates (71.80 - 77.94), starches (62.30 - 68.44%), fibers (5.03 - 5.83%), total sugars (2,13 - 2.99%), reducing sugars (0.33 - 0.66%), free fat acidity (1.86- 4.50%), peroxide value (1.34 - 3.07 meq O2/kg), iodine value (100.93 - 130.56 g I2/100 g), unsaponifiable (0.89 - 1.54%) and energy values (357.88 - 374.39 kcal). Conclusion: A significant variability from one region to another can be noticed at level of maize quality regardless the type of maize. The nutritive quality of maize seems to be tied to postharvest treatments (drying), type of storage (epis, grains and spathes) and structure of storage.

Bacteriological Quality of Beef Offered for Retail Sale in Cote d’ivoire

2011 ◽  
Vol 6 (9) ◽  
pp. 835-842 ◽  
Author(s):  
Rose Koffi-Nevr ◽  
Marina Koussemon ◽  
Seydou O. Coulibaly
Keyword(s):  
Cote D'ivoire ◽  
Côte D’Ivoire ◽  
Retail Sale ◽  
Cote D’Ivoire ◽  
Bacteriological Quality ◽  
Côte D'ivoire

Assessment of Trace Elements in Bissap (Hibiscus sabdariffa) Sold in the City of Abidjan in Côte d’Ivoire

2017 ◽  
Vol 05 (03) ◽  
Author(s):  
M’boh Gervais Melaine ◽  
N guessan Ismael Gbabia Zie ◽  
Ackah Jacques Auguste Alfred Bognan ◽  
Konan Kouassi Martin ◽  
Djaman Allico Joseph
Keyword(s):  
Trace Elements ◽  
Cote D'ivoire ◽  
Côte D’Ivoire ◽  
Hibiscus Sabdariffa ◽  
Cote D’Ivoire ◽  
Côte D'ivoire ◽  
The City

Effect of blending two treated waters on the organoleptic profile of Barcelona's supply

2004 ◽  
Vol 49 (9) ◽  
pp. 313-319 ◽  
Author(s):  
C. Fabrellas ◽  
R. Devesa ◽  
L. Matia
Keyword(s):  
Drinking Water ◽  
Profile Analysis ◽  
Organoleptic Quality ◽  
Treated Water ◽  
Flavour Profile ◽  
The City

Barcelona's drinking water has two distinct origins: the Ter and Llobregat rivers supply the city in a ratio of 35/65. The organoleptic quality of the two waters is very different. Treated water from the Llobregat sometimes has organoleptic problems, whereas the quality of treated water from the Ter is much better. The aim of this paper is to study the effects of blending the two types of water and to determine the best blend of the Ter and Llobregat treated waters in terms of flavour and odour, using the A/not A test and the Flavour Profile Analysis. The optimum blend of Ter and Llobregat water is the blend that contains the highest percentage of Llobregat water without any appreciable loss of the characteristics of Ter water.

scholarly journals Physico-chemical Quality of Soils under Cocoa Farm in Koffikro-Affema (Aboisso) in South-East of Côte d'Ivoire

2021 ◽  
Vol 3 (6) ◽  
pp. 47-54
Author(s):  
Yao Kouman Nestor Kouakou ◽  
Jéremie Gala Bi Trazié ◽  
Albert Yao-Kouamé
Keyword(s):  
Cote D'ivoire ◽  
Côte D’Ivoire ◽  
Organic Matter Content ◽  
High Rate ◽  
Good Growth ◽  
Chemical Quality ◽  
Cote D’Ivoire ◽  
Côte D'ivoire ◽  
Cocoa Farm

The study was conducted in Koffikro-Affema village located in the South-East of Côte d'Ivoire to assess the morpho-physical and chemical quality of soils under cocoa farm, for the management of early degradation of orchards. Representative soil samples were taken by horizon under degraded cocoa farms after a morpho-pedological characterisation. These samples were then analysed in the laboratory for fertility parameters. The results indicate that the cocoa farms have a high rate of degradation and the study made it possible to identify the soil characteristics associated not only with the degradation of cocoa trees, but also with the drop in yield. These are the rate of coarse grains greater than 50%, the low organic matter content (less than 3.5%), a very slow rate of mineralisation (C/N > 12), poor internal drainage and the acidic pH of the soil (4.4-5.5). The soils surveyed are highly desaturated to moderately saturated and the main characteristics of the absorbing complex indicate that they are unfavourable for cocoa. Indeed, these soils are deficient in K+ (<0.2 cmol/kg), Ca2+ (between 5.1 and 11.41 cmol/Kg) and assimilable Nitrogen (˂0.2 cmol/Kg). Similarly, the Mg2+/K+ ratio of less than 3 shows that they are magnesium deficient. The results also revealed an influence of the topographical position on the degradation of cocoa trees with, on the upper and middle slopes, strongly gravelly and poorly drained horizons, associated with the degradation of cocoa trees. On the other hand, on the lower slopes, these soils are deep, not gravelly, with good growth of cocoa trees and low yields.

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