March 2018

Physico-chemical and bacteriological characterization of sachet water sold in Yaounde City, Cameroon

The objective of this study is to take an inventory of all the sachet water brands sold in Yaounde and to assess their sanitary quality. This study was carried out on 100 samples, representing 20 sachet water brands sold in the urban city of Yaounde, Cameroon. Selected physico-chemical and bacteriological analyses of the sachet water were done. The results showed that their pH values and nitrate level  were in line...

Author(s): Hermann GAPWU, Patience BONGSE KARI ANDOSEH, Irène GUEMCHE SILLAG, Joséphine Mireille AKOA ETOA, Christian Gaéle NEMBOT FOMBA and Pauline MOUNJOUENPOU

March 2018

Toxicity of powdered and ethanolic extracts of Uvaria chamae (Annonaceae) Bark on selected stored product insect pests

A study was carried out on the insecticidal effects of the powdered stem bark extract of Uvaria chamae and its ethanolic extract on three most devastating stored products pests (Coleopterous) in Nigeria, namely: Callosobruchus maculatus F. (Bruchidae), Rhizopertha dominica F. (Bostrichidae) and Sitophilus zeamais Motschulsky (Curculionidae). Graded concentrations of each formulation of the powdered bark and ethanolic...

Author(s): Negbenebor, H. E., Makanjuola, W. A., Denloye, A. A. and Nura, S.

March 2018

Chemical composition of Citrus limon (Eureka variety) essential oil and evaluation of its antioxidant and antibacterial activities

The study evaluates the chemical composition, antioxidant and antimicrobial effects properties of essential oil of Citrus limon (Eureka) extracted by hydrodistillation. The composition of this oil was analysed by GC/MS for 30 constituents, which accounted for 97.8% of total oil. The main components were limonene (61.3%) followed by β-pinene (9.7%), α-citral (4.2%) and α-terpinene (3.8%). Antioxidant...

Author(s): Himed Louiza, Merniz Salah and Barkat Malika

March 2018

Thermal, physical and chemical analysis of Eisenia andrei flour for supplementary diet

The search for sources of animal feed has been well-regarded for farmers. In spite of this, the objective of this study was to show the thermal, physical and chemical properties of earthworms flour from Eisenia andrei for supplementary food for animals. The species was studied by simultaneous thermogravimetric analysis, differential scanning calorimetry, combustion calorimetry, moisture, ash, fat, protein, carbohydrate...

Author(s): Wagner M. Carlesso, Rosecler Ribeiro, Taciélen Altmayer, Jordana Finatto, Maira C. Martini, Débora T. Brietske, Tamara E. Gonçalves, Matheus Scheibel, Aline Camini, Fernando J. M. Kuffel, Cassiano R. Brandt, Henrique P. Etgeton, Daniel Kuhn, Maria C. Dallazen, Éder M. M. Flores, Simone Stulp, Eduardo M. Ethur, Elisete M. de Freitas and Lucélia Hoehne