Kitenge Ngongo Déborah, Mabiala Ma Diambu Georges Christian, Mbadu Zebe Victorine, Mukala Kalambaie Claude Alphonse, Nsimba Masunda Jean-Claude, Kelani Nsansa Françoise.
Page No : 86-89
Etude de quelques paramètres des huiles de deux variétés (Kalayibantu et Kasaï) de sésame extraites par la méthode mécanique traditionnelle
The present work consisted in assessing the oil yield of the two sesame varieties, namely Kalayibantu and Kasaï, as well as their physico-chemical qualities by means of traditional manual extraction. After extraction, the average yield calculated in oil for the two varieties was higher for those extracted from the Kalayibantu variety than for those obtained from the Kasaï variety. Concerning the physico-chemical parameters, the following results were found, one showing the calculated indices of the oils extracted from the Kalayibantu variety (Ia=1.4; Ip=10.7; Io= 27.9; Is=15.2; Ie=13.8) and the other those of the oils from the Kasaï variety (Ia= 1.5; Ip=5.9; Io= 7.9; Is= 18.6; Ie=17.1). These results lead us to say that the oils extracted from the Kalayibantu variety have an acceptable profile in terms of yield and physico-chemical quality.
Mabiala Ma Diambu Georges Christian1, Nsikungu Kalukul Maurice, Mukala Kalambaie Claude Alphonse, Nsimba Masunda Jean-Claude, Ndeke Issa Blandine.
Page No : 90-94
Détermination de la teneur en nitrites dans les produits de charcuterie vendus à Kinshasa, République démocratique du Congo
This work consisted in evaluating the nitrite content of meat products sold in Kinshasa. To do this, we analysed by absorption spectrophotometry a total of 20 samples, 10 of which were of local origin and 10 others imported to conduct a comparative study. The results obtained revealed that out of the sausages analysed, those of local origin all contained nitrite levels either lower or higher than the European standard which is 100 to 150 mg/kg. The same situation was observed in seven imported sausages, while the other three contained nitrite levels recommended by the European standard.
K.N. Ngbolua, L.K. Gbanzo, F. Koffi Bin Boteko, C.A. Masengo, G.K. Gerengbo, D.D. Tshilanda, D.S.T. Tshibangu, D.B. Mbembe, Y.B. Da-Musa Masens, P.T. Mpiana.
Page No : 95-109
Etudes ethnobotanique et dendrométrique et potentiel de séquestration du C02 de Entandrophragma cylindricum et Khaya grandifoliola (Meliaceae) dans une réserve communautaire en République Démocratique du Congo
The objective of this study was to assess the socio-cultural knowledge and uses as well as the cubing rate and carbon dioxide sequestration potential of two forest species (Entandrophragma cylindricum and Khaya grandifoliola) in the Binga Community Reserve. The ethnobotanical survey was conducted using a stratified probability sampling technique. The sample size was determined using the Dagnelie relationship. The dendrometric measurements were carried out in a 12 ha area subdivided into 50 m x 50 m plots, where all trees with a dhp of 10 cm or more were counted. The study showed that both plants are used in traditional medicine to treat 14 diseases. K. grandifoliola is the most cited plant (76.51%) than E. cylindricum (23.49%); the two most cited diseases are generalized pain (29 citations) and malaria (29 citations) with a Jaccard's coefficient of similarity equal to 57%; K. grandifoliola treats more malaria while E. cylindricum is more used in the treatment of generalized pain. For both plants, bark is the most used organ (99.3%) while decoction is the most cited method of recipe preparation (95.3%). The cubing rate of E. cylindricum obeys the mathematical models of polynomial regression (y = -0.0002x2 + 0.2935x - 16.392) and Power (y = 0.0038x1.6976) while that of K. grandifoliola obeys only the polynomial regression (y = 0.0012x2 - 0.0216x + 0.5592). E. cylibdricum sequesters more CO2 (77.10 tonnes/ha) than K. grandifoliola (33.83 tonnes/ha). It is therefore desirable that the results obtained should encourage local stakeholders (local population) and institutions in charge of forestry administration to work towards establishing standards capable of guaranteeing rational management and sustainable development of these forest species through a community bio-cultural protocol.
José Nyandue Ompola, Carine Yadoli Kosanga, Mamie Yabendo Ngbo, Didier Anakani Nagesiya, Jean Nkongolo Njima.
Page No : 110-118
La cartographie numérique et son apport dans l’organisation du recensement en République Démocratique du Congo
Computer Aided Mapping (CAD) is based on the use of Geographic Information Systems, high resolution images and GPS
(Global Positioning System) receivers for the survey of x and y coordinates. This leads to spatial analysis of the acquired
images and the use of geo-spatial technologies, which in turn leads to the production of maps, for which standard data layers
such as the shape file of administrative boundaries, roads, cities, territories and hydrographies are required as a basis for
mapping, census and data collection activities. The automatic processing of data from upstream census mapping activities has
both advantages, the first is efficiency, which is reflected in the amount of output that can be obtained per unit of input, this
shows that more can be done at a lower cost, on the one hand, the utility advantage is reflected in the effects of programmes
benefiting from improved information, on the other. Digital census mapping is thus computer-assisted mapping, using
computer technology and taking advantage of new geo-spatial technologies to produce better maps faster and improve the
overall quality of census data than updating it.
Page No : 119-131
Mise en place d’une base de données relationnelle au sein des Lignes Maritimes Congolaises pour l’estimation des résultats d’exploitation des navires affrétés
Any company must seek to improve its management organisation in order to maximise its performance and secure its management with the help of high-performance ICT tools for processing information. Since it does not have its own naval operating tool, the CML (Congolese Maritime Lines, formerly CMDC) has to resort to chartering ships. This mode of operation does not provide it with a sufficient financial cushion to meet its various expenses. In order to help the General Management to position a vessel as a single trip or round trip, the Commercial Management has to base the decision on simulation studies allowing identifying the profitability of each chartered vessel per trip. In the context of this study, the concern is focused on the design and implementation of a relational type of database that can allow LMC to gauge the results of its chartered vessels per voyage.