Physicochemical Properties of Pretreated Flours and Organoleptic Characteristics of Couscous of Four Varieties of Yams (Dioscorea cayenensis rotundata) Grown in Côte d'Ivoire

2018 ◽  
Vol 6 (2) ◽  
pp. 747-761
Author(s):  
COULIBALY Souleymane ◽  
Keyword(s):  
Physicochemical Properties ◽  
Cote D'ivoire ◽  
Côte D’Ivoire ◽  
Cote D’Ivoire ◽  
Côte D'ivoire ◽  
Organoleptic Characteristics ◽  
Dioscorea Cayenensis

scholarly journals Fatty Acids and Physicochemical Compositions of Dried and Roasted Blighia sapida Arils Oils (Ackee Apple) from Côte d’Ivoire

2018 ◽  
pp. 1-7
Author(s):  
Armelle Moya Felarry Hoba ◽  
Yolande Dogoré Digbeu ◽  
Siaka Binaté ◽  
Edmond Ahipo Dué ◽  
Lucien Patrice Kouamé
Keyword(s):  
Fatty Acids ◽  
Fatty Acid ◽  
Physicochemical Properties ◽  
Cote D'ivoire ◽  
Côte D’Ivoire ◽  
Unsaturated Fatty Acids ◽  
Cote D’Ivoire ◽  
Côte D'ivoire ◽  
Significant Difference ◽  
Blighia Sapida

In this work, comparative study of physicochemical properties and fatty acids of dried arils (DA) oil and those roasted (RA), of Blighia sapida from Côte d’Ivoire have been done using usual methods. The results showed that the crude fat obtained were 59.08± 0.02 g/100 g for dried arils (DA) and 60.51 ± 0.12 g/100 g for roasted arils (RA) respectively. Physicochemical properties of these oils were equal approximately, except level of saponification (241.19 mg KOH/g (DA) against 216.8 mg KOH/g (RA)); acid value (7 mg KOH/g (DA) and 6.28 mg KOH/g (RA)) and ester acid 234.19 mg KOH/g (DA) against 210.65 mg KOH/g (RA) where variances analysis showed that there was significant difference (p<0.05). On the other hand, refractive index, pH, moisture value, relative density and Free fatty acid were respectively; 1.465 (DA) and 1.475 (RA); 5.625 (DA) and 5.8 (RA); 1.757 (DA) and 1.9 (RA); 0.093 (DA) and 0.103 (RA), 3.52 mg KOH/g (DA) and 3.03 mg KOH/g (RA). The color of both oils was yellow. Fatty acid profile of these arils oils revealed that values of DA and RA were equal approximately (variances analysis showed that there was no significant difference (p<0.05)). These arils oils contained high levels of unsaturated fatty acids, 64.10 % (DA) and 65.17 % (RA), especially linolenic acid 20.02 mg/100 g (DA) and 22.18 mg/100 g (RA); linoleic acid 15.37 mg/100 g (DA) and 16.83 mg/100 g (RA) and Oleic acid 12.76 mg/100 g (DA) and 13.21 mg/100 g(RA). The saturated fatty Acids, accounted for 35.90% (DA) and 34.83% (RA) were constituted by palmitic acid with 18.02 mg/100 g (DA) and 18.11(RA) which were higher values. The values of stearic acid were 7.1 mg/100 g (DA) and 7.9 mg/100 g (RA) and 1.85 mg/100 g (AD) and 1.9 mg/100 g (RA) mg/100 g for myristic acid respectively. These results showed that the arils oils of Blighia sapida fruit from Côte d’Ivoire have highly nutritive fat content because rich in essentials fatty acids. These oils may be suitable for soap making and edible (margarine). The oils extracts exhibited good physicochemical properties and could be useful as edible oils and for industrial applications.

scholarly journals Physicochemical and Organoleptic Characterization of Flours and Some Food Products Processed from Ten Maize Varieties (Zea mays) Cultivated in Côte d’Ivoire

2020 ◽  
pp. 39-49
Author(s):  
L. A. Akpro ◽  
Deffan K. Prudence ◽  
G. A. Gbogouri ◽  
Louis Ban-Koffi ◽  
K. E. Assemand ◽  
...  
Keyword(s):  
Protein Content ◽  
Cote D'ivoire ◽  
Côte D’Ivoire ◽  
Starch Content ◽  
Food Products ◽  
Physicochemical Characteristics ◽  
Cote D’Ivoire ◽  
Côte D'ivoire ◽  
Organoleptic Characteristics ◽  
Maize Varieties

Objective: The aim of this work was to determine the processing aptitude of maize varieties into food products to be promoted in Côte d’Ivoire. Methodology: Three dishes have been developed from ten maize varieties (MAAN16, PGBR, PGB18, AAA3, KF18, CJB, KO/Na4, KO/Na3, KO/Wa6, and EV99MRP). The sensory criteria used for the acceptability of the food products were the taste, the flavor and the color. Prior to the preparation of maize flour based food, like cakes, cooked flour paste (tôh) and semolina porridge,  the biochemical and physicochemical characteristics (moisture content, fat, protein content, ash content, carbohydrate, total sugar and reducers and pH) and functional characteristics of maize were determined. Hedonic   and descriptive tests were performed   with 30 and 15 panelists respectively. Results: The maize varieties presented good nutritional and technological potentialities because of their high content in essential compounds likely to influence the organoleptic characteristics of the processed food.  The lowest starch content was MAAN16 with 38.58 ± 0.45% dw and the highest was CJB with 71.85 ± 0.56% dw. The lowest protein content is 5.56 ± 0.17% dw at CJB and the highest protein content is 13.66 ± 0.33% dw in KO/Na3. The lowest fat content is 3.87 ± 0.12% dw (in KO/Na4) and the highest is 12.56 ± 0.50% dw (in MAAN16); the lowest carbohydrate level is 63.27 ± 0.01% dw (in MAAN16) and the highest is 74.92± 0.03% dw (in CJB). The acceptability of the cakes, the cooked flour paste and the semolina porridge depended on the maize variety. Foods prepared from maize varieties CJB, KO/Na3, KO/Wa6, MAAN16 and PGBR were the most appreciated by tasters.

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.

scholarly journals Production Mapping and Description of the Organoleptic Qualities of Local Varieties of Plantain (Musa spp. AAB) Cultivated in Côte d’Ivoire

2020 ◽  
pp. 9-21 ◽  
Author(s):  
H. Kouassi ◽  
E. Assemand ◽  
B. Konan ◽  
H. Gnahé
Keyword(s):  
Cote D'ivoire ◽  
Côte D’Ivoire ◽  
Local Varieties ◽  
Cote D’Ivoire ◽  
Individual Interviews ◽  
Full Diversity ◽  
Technological Differences ◽  
Côte D'ivoire ◽  
Organoleptic Characteristics ◽  
Structured Questionnaire

Aims: A field survey was carried to apprehend the full diversity of Ivorian’s plantain. The aim was to produce a reliable and up-to-date production map of the local varieties. This study was also intended to determine their level of appreciation by local consumers on the basis of their physical, technological and sensory characteristics. Place and Duration of Study: The enquiries data were collected in 87 villages distributed into 22 regions of Côte d'Ivoire, between September and December 2017. Methodology: During the survey, data on the production, description, processing and consumption of local plantains were collected by direct individual interviews using a structured questionnaire. This information was collected in a participatory manner from 1232 (14 producers/villages). Results: This study identified twenty-two (22) varieties of plantain, traditionally cultivated for several generations in Côte d'Ivoire. The greatest varietal diversity has been observed in the South-East and the East, notably in the regions of Sud-Comoé, Indénié-Djuablin, Mé and    Agneby-Tiassa. These varieties are variously appreciated according to their physical and organoleptic characteristics. People used them to make the usual plantain-based dishes found in Côte d’Ivoire. However, for the most questioned people, cooking specific plantain dishes requires the using of specific varieties with particular characteristics. The Agnrin, Molegna, N'gretia, Molekotoba, Ameletia, Purple banana and Banadiè varieties have been designated to be the best for “foutou”. In addition, the Banadiè variety, even in the green state, gives a nice yellow “foutou”. The above varieties are said to be perfect to prepare “Aloco”, “Docklounou” and “Clacro” at advanced ripening stages. The Afoto, Spotted banana, Kpatrè-kou, Kpatragnon, Kpatrè-n'san varieties, were recommended for “foutou”, “foufou”, roasted or chips because of their volume. Conclusion: Further researches are underway to explain, scientifically, the sensory and technological differences usually observed between local plantains varieties.

scholarly journals Quelques caractéristiques organoleptiques et valeurs nutritionnelles de la viande de Thryonomys swinderianus (Temminck, 1827) élevés en captivité et nourris avec deux types d’aliments

2020 ◽  
Vol 14 (5) ◽  
pp. 1576-1584
Author(s):  
Soronikpoho Soro ◽  
Yolande Ake Assi ◽  
Beh Traore ◽  
Agathe Fantodji
Keyword(s):  
Cote D'ivoire ◽  
Biochemical Parameters ◽  
Côte D’Ivoire ◽  
Sensory Profile ◽  
Cote D’Ivoire ◽  
Thryonomys Swinderianus ◽  
Côte D'ivoire ◽  
Hind Limbs ◽  
Organoleptic Characteristics ◽  
Significant Difference

L’aulacodiculture est une option privilégiée à la fourniture de protéines animales. Cette étude a été menée dans le but de déterminer l’effet d’un aliment granulé sur les caractéristiques organoleptiques et biochimiques de leur viande. Ainsi, un lot d’aulacodes a été nourri au granulé tandis que l’autre nourri au fourrage avec complément alimentaire (aliment classique). Après un abattage normal, les membres antérieurs et postérieurs des animaux ont été prélevés. La viande des membres postérieurs a été retenue pour l’analyse organoleptique (couleur, texture, jutosité, flaveur, tendreté) par 12 panelistes en trois répétitions. La viande des membres antérieurs a servi à la détermination de la matière sèche, des protéines brutes, de la matière grasse et des cendres brutes. Ces travaux montrent que la viande d’aulacode est juteuse, tendre avec une texture grossière et une flaveur prononcée quel que soit le type d’aliment. Le profil sensoriel montre une différence tant au niveau de la couleur qu’au niveau de la jutosité et de la texture. Quant aux paramètres biochimiques, aucune différence significative n’a été observée (p ≥ 0,05). Il convient de retenir que la viande d’aulacodes nourris au granulé a été plus appréciée tant pour la couleur, la texture, la jutosité que pour la flaveur. Mots clés : Aulacodes, viandes, granulé, fourrage, Côte d’Ivoire.   English Title: Some organoleptic characteristics and nutritional values and nutritionals values of meat of Thryonomys swinderianus, (Temminck, 1827) raised in captivity and fed with two types of foodGrasscutter farming seems to be a preferred option for the supply of proteins formerly derived from hunting. This study aimed at determining the effect of a granulated food on the organoleptic and biochemical qualities of grasscutter meat. Thus, three grasscutters were randomly selected from a batch of animals fed with a granulated food and the other three from the batch fed with the conventional food. After normal slaughter, the fore and hind limbs were removed. The meat of the posterior limbs was selected for organoleptic analysis by a panel of 12 consumers in three repetitions. The meat from upper limbs was used to evaluate the biochemical parameters such as dry matter, crude protein, fat and raw ash. Results showed that the meat of the grasscutter was juicy, tender with a coarse texture and a pronounced flavor whatever the type of food. The sensory profile showed a significant difference in color, juiciness, and texture of meat. With respect to biochemical parameters, no significant difference was observed (p ≥ 0.05). The type of food had no effect on biochemical parameters of grasscutter meat. However, the organoleptic parameters influenced significantly the level of appreciation of grasscutter meat. Keywords: Grasscutter, meat, granulated food, forage, Côte d’Ivoire.

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.

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