Kablan Tano

Université Nangui Abrogoua · Department of Food Science and Technology

Aims: The peel and the kernel of mangoes of KENT and KEIT varieties, although presenting enormous nutritive and technological potentialities, are considered as waste and, as a result, rejected in nature causing environmental pollution. This study therefore set itself the general objective of contributing to the development of mango by-products (Man...

Mango (Mangifera indica L.) is a widespread crop that is affected by many factors that promote deterioration and limit its shelf life. This study aims to evaluate the effect of hexanal treatment and cold storage conditions on mango quality and postharvest losses. Mangoes var "Kent" were harvested from a commercial orchard located in Korhogo in the...

The prevalence of chronic and metabolic diseases around the world, and particularly in Ivory Coast, is alarming. The aim of this work was to assess the potential health effect of Moringa oleifera leaf powder in the treatment of diabetes in Wistar rats. Moringa oleifera leaf powder was the subject of a nutritional study in these diabetic Wistar rats...

Aims: Bacillus species is used as starter culture to improve quality of the fermented product. Thus, the purpose of this study is to identify Bacillus species during the spontaneous fermentation of Phaseolus lunatus with prospective selection as starter cultures. Study Design: Spontaneous fermentation of Phaseolus lunatus flour was allowed to proce...

Legumes are rich in protein. However, they are not consumed much because their consumption poses a problem of digestion due to anti-nutritional factors and consumers have a preference for proteins from livestock. It therefore appears useful to promote them. The means used to enhance them was fermentation. This technique improves the nutritional and...

Cassava is an important staple food around the world, especially in Africa. It is cultivated throughout the Ivorian territory with predominance in the South. Due to the high demand, some producers opt for an early harvest, neglecting the impact of the harvest stage on the sensory parameters of cassava root derivatives. The objective of this work wa...

Objective: Lima bean (Phaseolus lunatus) is a protein-rich legume species, which the consumption causes a problem of digestion due to the high content of anti-nutritional factors. Thus, the objective of this study is to improve the nutritional quality of lima bean by means of fermentation. Methodology and results: The impact of spontaneous fermenta...

This study was conducted to ascertain the Sanitary state of beverages (Gnamankoudji, Bissap and Tomi) sold in the streets of Daloa (Côte d'Ivoire). To conduct the study, a survey was carried out to diagnose the different non-alcoholic artisanal drinks sold in the town of Daloa. The diagnosis revealed that 87.5% of consumers buy the drinks from the...

The aim of this study was to produce a suitable low-cost feeds for African catfish Clarias gariepinus rearing in Côte d'Ivoire fish farms. Three isoproteic (35% protein level) dry feeds were formulated and produced with the local available feedstuffs of Sudano Guinean 1 (SG1), Sudano Guinean 2 (SG2) and Guinean (G) Côte d’Ivoire agro ecological are...

Moisture sorption isotherms play an essential role in preservation and storage of dehydrated food. To study the behavior of sucrose, it’s moisture adsorption isotherm was investigated using the static gravimetrique method at laboratory temperature (29 ±1°C) in a water activity range (aw) of 0.07-0.97. The results showed that the equilibrium moistur...

This work aimed to determine the optimum amount of inoculum for anaerobic digestion of cassava waste in three digesters. These digesters are supplied with different inoculums as follows: effluent + urine + 5 kg of cow dung (B5); effluent + urine + 10 kg of cow dung (B10); effluent + urine + 15 kg of cow dung (B15). The results of this work show tha...

Adsorption isotherms constitute a source of significant information to establish the stability of the foodstuffs and their storage conditions. The storage of flours requires the knowledge of their hygroscopicity. Adsorption isotherms of composite flours of plantain of the local variety Horn 1 (FC) (Musa AAB) and the two plantains hybids varities FH...

Papaya (Carica papaya) is a common tropical fruit used for nutrition as well as medicinal purposes. Apart from fruit, seed, latex and other plant parts of papaya tree have been shown to have medicinal properties. Since, no systematic study has been performed on nutritional analysis of papaya (Carica papaya L. var solo 8) peels. In this study, the p...

The control of the anaerobic digestion of cassava residues from attieke factories requires their characterization to offer a better working environment to attieke producers. This study concerns at first the quantity of solid residues of cassava, dough of crushed cassava and other waste generated by the process of attieke production. The second aspe...

In order to reduce plantain post-harvest losses in Côte d’Ivoire by product processing, three plantain varieties (Orishele, French Horn 2 and 1) most cultivated were used at high ripening level to produce beers according two methods (PP and PS method). The results indicate that the physicochemical parameters of the different varieties of dough plan...

This study investigated anaerobic co-digestion of cassava liquid waste (Highly acidic with low nitrogen) and human urine (basic and rich in nitrogen). This method greatly contributes to the production of biogas. The digester operating in batch and continuous mode using cassava effluent + human urine + cow dung. The operation of the batch digester s...

Mushrooms (Pleurotus ostreatus) and tomatoes (Lycopersicum esculentum, var. Petomech) were packaged in modified atmosphere (MA) containers able to maintain optimal atmosphere for each product at optimal storage temperature (4 °C for mushrooms and 13 °C for tomatoes). Moisture absorbers (sodium bicarbonate and polymer of super moisture absorber mixt...

Plantain (Musa Paradisiaca AAB var. Corne 1), okra (Abelmoschus Esculentus var. Tomi) and bell pepper (Capsicum Annuum var. PM17/04A) contribute to food security in developing countries such as Côte d'Ivoire. These foods, which have high moisture content, can be kept only within a few days after harvest. Processing these products by drying and chan...

Cette étude a été conduite pour évaluer le niveau de connaissance et de perception des risques sanitaires dans le secteur du maraîchage à Abidjan, à travers une enquête transversale. Le maraîchage est pratiqué à 77,98% par les hommes et à 22,02% par les femmes, qui sont pour la plupart des analphabètes (58,6%). Différents types de légumes sont prod...

This study investigated anaerobic co-digestion of cassava liquid waste (very acid and poor in nitrogen) and human urine. Three experimental digesters were used: manioc effluent; manioc effluent + urine; manioc effluent + urine + cow dung. All digesters have functioned with mesophilic temperatures between 24.0 and 35.6°C. Digesters without urine hav...

This study investigated anaerobic co-digestion of cassava liquid waste (very acid and poor in nitrogen) and human urine. Three experimental digesters were used: manioc effluent; manioc effluent + urine; manioc effluent + urine + cow dung. All digesters have functioned with mesophilic temperatures between 24.0 and 35.6°C. Digesters without urine hav...

Cette étude s’est penchée sur les conditions optimales de biodigestion des effluents de manioc de la filière attiéké (semoule de manioc). Ces effluents proviennent de la fabrique d’attiéké d’Azito (village Ebrié de la commune de Yopougon dans le district d’Abidjan). Les six digesteurs expérimentaux utilisés, ont été alimentés comme suit : 1) efflue...

Fruit ripening is associated with many hydrolase activities involved in the softening of the fruit during the maturation. This study investigates the relationship between the loss of firmness along with the changes of sugar content and the enzymatic activities in Carica papaya L.var solo 8 during post-harvest storage. Three maturation stages (green...

Besides the use of pepper as a food ingredient, many developing countries use it in indigenous medicine. The aim of this work was to isolate bioactive compounds from some varieties of pepper (Capsicum) grown and consumed in Côte d'Ivoire, and to assess the ability of organic solvent to extract these compounds. Crude acetone extract contained 35 mg...

This study was conducted to assess the antibacterial and the antifungal activity of a polyhexamethylene guanidine hydrochloride (PHMGH)-based disinfectant and to determine if it could be used as a disinfectant for the treatment of cocoa beans. The activity of PHMGH was tested in vitro for efficacy against five reference strains of pathogenic bacter...

Cette étude s’est penchée sur les conditions optimales de biodigestion des effluents de manioc de la filière attiéké (semoule de manioc). Ces effluents proviennent de la fabrique d’attiéké d’Azito (village Ebrié de la commune de Yopougon dans le district d’Abidjan). Les six digesteurs expérimentaux utilisés, ont été alimentés comme suit : 1) efflue...

The antifungal activity of the Polyhexamethylene-guanidine hydrochloride (PHMGH)-based disinfectant against fungi isolated from papaya fruit was evaluated. The aim of this work was to show that the PHMGH can be used as a disinfectant for papaya preservation. Thirty one strains of fungi were isolated as Mucor sp., Botrytis sp., Penicillium sp., Geot...

Respiration and transpiration of mushrooms (Agaricus Bisporus cv. 'U3 Sylvan 381'), strawberries (Fragaria x ananassa Duch, cv. 'Kent'), broccoli (Brassica oleracea L. cv. 'Acadi') and tomatoes (Lycopersicon esculentum Mill. cv. 'Trust') were determined under different temperatures, atmospheric and humidity conditions in order to get information fo...

Besides the use of pepper as a food ingredient, many developing countries use it as in indigenous medicine. This study was undertaken to investigate the antibacterial activities of extracts isolated from Capsicum annum L. and Capsicum frutescens fruits and to identify active compounds responsible for this activity. Three Gram-positive bacteria (Sta...

In the way to set up an appropriate weaning food, the effect of various treatments such as germination, fermentation and supplementation with legumes on millet flour quality was investigated. Untreated and treatedsamples of flours were monitored for their nutritional properties and in vitro digestibility. Results showed an important effect of treat...

Bacillus Subtilis spores were treated with vapour CO2(V-CO 2), liquid CO2(L-CO2) and supercritical CO 2(SC-CO2) in the presence of 3%O2, 5%N 2O and 2%CH3CH2OH as sensitizers. Exposure of the spores to CO2under pressures ranging from 2.5 to 25 MPa and at temperatures between 25°C and 70°C was performed in a double-walled reactor of 1 L capacity equi...

In the way to set up an appropriate weaning food, the effect of various treatments such as germination, fermentation and supplementation with legumes on millet flour quality was investigated. Untreated and treated samples of flours were monitored for their nutritional properties and in vitro digestibility. Results showed an important effect of trea...

Changes in the protein content and profile of postharvest tomato fruit treated with the hormetic dose (3.7 kJ m−2) of ultraviolet light C (UV-C) at the mature green stage was investigated. In UV-C treated fruits, the total protein content increased until 10 d after treatment and decreased thereafter during a 30 d storage period; whereas in control...

The influence of pH and Low Methoxyl Pectin (LMP) on the stability and properties of acid milk gel was studied by measuring rheology, ζ potential, particle size, micelle hydration and buffering properties. Glucono-delta-lactone (gdl) addition decreased rapidly the pH and stabilized it at ~ 4.6. During acidification stiffness (K) increased while the...

Polyhexamethylene guanidine hydrochloride (PHMGH), an antimicrobial biocide of the guanidine family, was tested for efficacy against quality-control strains of Staphylococcus aureus, Pseudomonas aeruginosa, Salmonella choleraesuis, meticillin-resistant S. aureus (MRSA) and Escherichia coli. Bactericidal activity against S. aureus, P. aeruginosa and...

The present study aimed to quantify energy, iron intake and dietary factors that modulate its absorption for weanlings in an anaemic population in Côte d’Ivoire setting. Thus, a food intake survey was made with infants (N=429) of 4 to 24 months old in socioeconomically poor zones of Côte d’Ivoire, namely in rural areas (Bouaké and Boundiali) and an...

The effect of temperature fluctuation conditions on gas composition in Modified Atmosphere Packaging (MAP) of fresh strawberry (Fragaria x ananassa Duch. cv. Kent) and on its quality during the storage period was studied. Fresh strawberries fruits were packaged in modified atmosphere containers and steady-state of atmosphere of 6% O2 and 15% CO2 we...

Physico-chemical and microbiological evolution of Bêdêcouman, a traditional food made from cassava (Manihot esculenta Crantz), were studied. Bêdêcouman is the product obtained when cassava mash is fermented, cooked, pounded, cooked again and shaped. Results of fresh mash, fermented mash and Bêdêcouman showed changing in the composition of proteins,...

A study was conducted on a tropical lagoon in Abidjan, Côte d'Ivoire, to assess the sanitary level of water and sediment interface. A total of 90 water samples were collected from three sampling stations (A, B and C) with 30 samples for each station. The results obtained reveal that the water-sediment interface was highly contaminated. Mean count (...

Moisture sorption isotherms of chitosan and chitin in granular powder form were determined at 4°C using the static desiccators' technique. Ten saturated salt solutions were used to provide constant relative humidity environments. The isotherms were found to be sigmoid type and of BET classification II. The GAB model was used to fit the experimental...

Mushrooms (Agaricus Bisporus cv. U3 Sylvan 381), broccoli (Brassica oleracea L. cv. Acadi) and mature-green tomatoes (Lycopersicon esculentum cv. Trust) were packaged in Modified Atmosphere (MA) containers and steady-state atmospheres of 5% O2–10% CO2, 3% O2–8% CO2, and 5% O2–5% CO2 were maintained a 4, 3 and 13 °C, respectively. The packages were...

The effects of pressurized CO2 on the survival of Escherichia coli and the mechanism of cell inactivation were studied. Bacterial cultures were inoculated in nutrient broth and incubated at 30 degrees C for 18 h. Exposure of the cells to CO2 under pressures ranging from 2.5 to 25 MPa and at temperatures between 8 and 40 degrees C was performed in a...

Mushrooms (Agaricus bisporus) were packaged in 4-liter modified atmosphere (MA) containers, and a steady-state atmosphere of 5% and 10% was maintained at 4 °C. Temperature was fluctuated from 4 °C to 20 °C during 12-d storage period in cycles: 2 d at 4 °C followed by 2 d at 20 °C. Temperature increase during fluctuations caused anoxic atmospheres b...

Use of modified atmosphere (MA) as an adjunct to low temperature can be effective method for prolonging the shelflife of fresh fruits and vegetables. However, if storage temperature fluctuates, anoxic conditions can result and, consequently, the fresh produce quality can deteriorate rapidly. The objective of this investigation was to evaluate the e...