scholarly journals Étude de la stabilité de quelques propriétés physicochimiques des tranches d’igname congelées (Dioscorea cayenensis-rotundata cv Kponan) de Côte d’Ivoire et analyse sensorielle des mets dérivés

2021 ◽  
Vol 158 ◽  
pp. 16321-16339
Author(s):  
Coulibaly Aïssatou ◽  
Kouadio Degbeu Claver ◽  
Doh Amenan Aline ◽  
Amani N’Guessan Georges
Keyword(s):  
Cote D'ivoire ◽  
Sensory Analysis ◽  
Côte D’Ivoire ◽  
Sensory Characteristics ◽  
Sensory Profile ◽  
Cote D’Ivoire ◽  
Côte D'ivoire ◽  
Physico Chemical ◽  
Dioscorea Cayenensis ◽  
The Impact

Objectif : Évaluer l’impact de la congélation sur certains paramètres physico-chimiques des tranches d’ignames de la variété kponan et faire une analyse sensorielle de quelques mets dérivés. Méthodologie et résultats : L’étude a été faite sur des tranches d’ignames prétraitées puis congelées pendant 3 mois. À Chaque mois, des échantillons ont été prélevés pour une analyse des paramètres physicochimiques et sensorielle des mets dérivés. La congélation n’a pas eu d’effet sur les teneurs en fibre, en protéine et en cendre. Cependant, au cours du premier mois, la matière sèche a augmenté de 5,59 %. Une augmentation des sucres réducteurs a été également observée. Tandis que la teneur en amidon a diminué de 5,54 %. A partir du deuxième mois, tous les paramètres physico-chimiques étudiés sont demeurés stables. Le profil sensoriel des mets dérivés a montré une bonne appréciation des caractéristiques sensorielles avec une forte élasticité (foutou) et une augmentation de la croustillance, de la fermeté et de la couleur (frite). Conclusion et applications des résultats : La technologie utilisée au cours de cette étude a permis de conserver la majeure partie des caractéristiques physico-chimiques et sensorielles de l’igname durant 3 mois. La production de tranches d’igname congelées doit être envisagée afin de palier le problème de conservation post-récolte, assurer la disponibilité tout au long de l’année permettant d’assurer la sécurité alimentaire et contribuer ainsi à la lutte contre la pauvreté en milieu rurale. Coulibaly et al., J. Appl. Biosci. 2021 Étude de la stabilité de quelques propriétés physico-chimiques des tranches d’igname congelées (Dioscorea cayenensis-rotundata cv Kponan) de Côte d’Ivoire et analyse sensorielle des mets dérivés 16322 Study of the stability of some physicochemical properties of frozen yam slices (Dioscorea cayenensis-rotundata CV Kponan) from Côte d'Ivoire and sensory analysis of derived dishes ABSTRACT Objective: Evaluate the impact of freezing on certain physicochemical parameters of yam slices of the kponan variety and make a sensory analysis of some derived dishes. Methodology and results: The study was performed on slices of pretreated yams and then frozen for 3 months. Each month, samples were taken for an analysis of the physico-chemical and sensory parameters of the derivative dishes. Freezing did not affect fiber, protein, and ash contents. However, in the first month, dry matter increased by 5.59%. An increase in reducing sugars was also observed. While the starch content decreased by 5.54%. From the second month, all the physico-chemical parameters studied remained stable. The sensory profile of the derived dishes showed a good appreciation of the sensory characteristics with high elasticity (foutou) and an increase in crispness, firmness, and color (fried). Conclusion and application of the results: The technology used during this study made it possible to conserve most of the physico-chemical and sensory characteristics of the yam for 3 months. The production of frozen yam slices should be considered in order to overcome the post-harvest conservation problem, ensure availability throughout the year, ensuring food security and thus contributing to the fight against poverty in the environment. rural.

scholarly journals Browning Prevention and Sensory Evaluation of Frozen Yam Slices (Dioscorea cayenensis-rotundata Cv Kponan) of Côte D’Ivoire

2019 ◽  
pp. 1-10
Author(s):  
Aïssatou Coulibaly ◽  
Kouadio Claver Degbeu ◽  
Abo Paul Marcelin Bekoin ◽  
Yapi Elisée Kouakoua ◽  
Kingsley Kwadwo Asare Pereko ◽  
...  
Keyword(s):  
Cote D'ivoire ◽  
Dry Matter ◽  
Côte D’Ivoire ◽  
Specific Activity ◽  
Lemon Juice ◽  
Sensory Profile ◽  
Dry Matter Content ◽  
Cote D’Ivoire ◽  
Côte D'ivoire ◽  
Dioscorea Cayenensis

Aim: To prevent enzymatic browning during the freezing of yam slices of the Kponan variety (Dioscorea cayenensis-rotundata). Study Design: The experimental set-up was of a completely randomized design. Place and Duration of Study: Department of Food Science and Technology, Food Biochemistry and Tropical Products Technology Laboratory (BATPTL), University of Nangui Abrogoua, Abidjan, Côte d’Ivoire, between August and December 2018. Methodology: For this purpose, yam slices were either pretreated with a natural agent (lemon juice solution at different pH) or pretreated and blanched (85 °C for 2 min) and then packed in plastic bags and kept in the freezer at -18°C over a period of 4 weeks. Polyphenoloxidase and Peroxidase activities, Dry matter, rate of browning and sensory attributes of yam slices were determined. Results: The results showed a decrease in polyphenoloxidase and peroxidase activities regardless of the treatment. The largest decreases in activity were observed in yam slices that were both pretreated and blanched compared to the control (about 53.49% decrease in the specific activity of the PPOs and 51.46% of POD). The combination of pretreatment and blanching also resulted in lower dry matter yam slices compared to pretreated slices only. After 1 month of storage in the freezer, the lower rates of loss (browning) were recorded for the slices of yams that were both pretreated and blanched compared to the other methods which had very high losses. The pretreated and blanched slices had high dry matter content. The sensory profile of slices processed by the combined technique after one month of freezing had a good appreciation for all sensory characteristics of yam. Conclusion: In order to have a good product, the combined method is recommended for better freezer storage of yam slices.

Pteroteinon laufella.

2021 ◽  
Author(s):  
Matthew Cock
Keyword(s):  
Cote D'ivoire ◽  
Oil Palm ◽  
Côte D’Ivoire ◽  
Subsequent Development ◽  
Feeding Damage ◽  
Cote D’Ivoire ◽  
Côte D'ivoire ◽  
The Impact

Abstract Writing about Zophopetes cerymica (which they considered more common) and P. laufella combined, Mariau and Morin (1974) state that attacks can be on palms of all ages, including young palms recently planted out. At this age, defoliation of the plants delays their subsequent development. Outbreaks on older trees are rarer, and the damage often less important; these attacks are generally localized at the edge of plantations. Mariau et al. (1981) add that the highest fronds are the most often damaged. Herder et al. (1994) refer to regular outbreaks of P. laufella on oil palm in southern Côte d'Ivoire. There are no more substantive reports on the impact of the feeding damage by these hesperiids.

scholarly journals Physico-chemical properties of Safou (Dacryodes edulis) fruits grown in Côte d’Ivoire

2016 ◽  
Vol 105 (1) ◽  
pp. 10103 ◽  
Author(s):  
Beugré Romuald Léonce Kadji ◽  
Fankroma Martial Thierry Kone ◽  
Andrée Emmanuelle Sika ◽  
Soumaïla Dabonne
Keyword(s):  
Cote D'ivoire ◽  
Côte D’Ivoire ◽  
Chemical Properties ◽  
Cote D’Ivoire ◽  
Côte D'ivoire ◽  
Physico Chemical ◽  
Dacryodes Edulis

An assessment of the impact of artisanal and commercial gold mining on mercury and methylmercury levels in the environment and fish in Cote d'Ivoire

2019 ◽  
Vol 665 ◽  
pp. 1158-1167 ◽  
Author(s):  
Robert P. Mason ◽  
Zofia Baumann ◽  
Gunnar Hansen ◽  
Koffi Marcellin Yao ◽  
Mariame Coulibaly ◽  
...  
Keyword(s):  
Cote D'ivoire ◽  
Gold Mining ◽  
Côte D’Ivoire ◽  
Cote D’Ivoire ◽  
Côte D'ivoire ◽  
The Impact

scholarly journals Distribution, Pathogenicity, and Interactions of Two Strains of Rice yellow mottle virus in Forested and Savanna Zones of West Africa

Plant Disease ◽  
2001 ◽  
Vol 85 (1) ◽  
pp. 59-64 ◽  
Author(s):  
P. N'Guessan ◽  
A. Pinel ◽  
A. A. Sy ◽  
A. Ghesquière ◽  
D. Fargette
Keyword(s):  
Cote D'ivoire ◽  
Côte D’Ivoire ◽  
Mottle Virus ◽  
Rice Yellow Mottle Virus ◽  
Yield Losses ◽  
The West ◽  
Cote D’Ivoire ◽  
Côte D'ivoire ◽  
Yellow Mottle ◽  
The Impact

In Côte d'Ivoire, the S2 strain of Rice yellow mottle virus (RYMV) predominated in the forested zones, including the “rice belt” to the west, in each of the cropping systems where rice was grown. The S1 strain occurred more frequently in the northern Guinean savanna, and only S1 isolates were found further north in the Sahelo-Soudanian zones. In mixed infection, S2 dominated over S1 both in viral capsid and RNA contents under temperature regimes encompassing those observed in savanna and forested zones of Côte d'Ivoire. There was no evidence of interactions in virus accumulation between the West African strains S1 or S2 with the more distantly related East African strain S4. Field trials emphasized the impact of RYMV, which induced yield losses of 40 to 60% in several widely grown cultivars of Oryza sativa indica and O. sativa japonica. We report the high resistance of the O. indica cv. Gigante under field conditions which was apparent with all the S1 and S2 isolates tested. Responses to RYMV infection of several cultivars were isolate dependent. With most differential cultivars, responses were not strain specific, with the exception of the O. japonica cv. Idsa6, in which the S2 isolates always induced higher yield losses than the S1 isolates.

scholarly journals The Issue of Education in Post-Conflict Reconstruction through the Transitional Justice Process: The Case of Côte D’Ivoire

2020 ◽  
Vol 3 (4) ◽  
pp. p141
Author(s):  
ASSAMOI Seraphim Desire
Keyword(s):  
Cote D'ivoire ◽  
Transitional Justice ◽  
Côte D’Ivoire ◽  
Cote D’Ivoire ◽  
Reconstruction Process ◽  
National Education ◽  
Post Conflict ◽  
Côte D'ivoire ◽  
Justice Process ◽  
The Impact

The inclusion of education in post-conflict reconstruction in a transitional justice process goes far beyond physical construction and educational facilities to become part of national educational planning and policy. The issue of education in post-conflict periods is at the level of the national education system in general and of educational policies and strategies in particular. In Côte d’Ivoire, as in other countries emerging from violent conflict, even if the issue of education can be identified in the structural and direct causes of the occurrence of conflicts, it must be recognized that the impact of these conflicts on education remains considerable at different levels. Thus, taking account of its consequences in post-conflict reconstruction in the context of transitional justice is of great interest both for its contribution to economic growth and for the promotion of fundamental human rights and social cohesion. A full involvement of education in the transitional justice process is a real potential for mutual reinforcement in the reconstruction process. Practical synergies between education and transitional justice call for closer collaboration between education and transitional justice actors.

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