African Journal of

  • Abbreviation: Afr. J. Biotechnol.
  • Language: English
  • ISSN: 1684-5315
  • DOI: 10.5897/AJB
  • Start Year: 2002
  • Published Articles: 12072

Table of Content: 4 July, 2018; 17(27)

July 2018

Phytochemical profile and biological activities of Momordica charantia L. (Cucurbitaceae): A review

This study discusses the bioactive composition, supercritical fluid extraction and biological activities of Momordica charantia L. from the last five years. Numerous compounds that have been identified in the extracts of M. charantia, including phytosterols, terpenoids, fatty acids, phenolic compounds, phenolic acids and flavonoids were also discussed. Although, several studies reported the use of organic solvents in...

Author(s): Mozaniel Santana de Oliveira, Wanessa Almeida da Costa, Fernanda Wariss Figueiredo Bezerra, Marilena Emmi Araújo, Gracialda Costa Ferreira and Raul Nunes de Carvalho Junior,

July 2018

Enhancement of somaclonal variations and genetic diversity using graphite nanoparticles (GtNPs) in sweet potato plants

To assay the efficiency of graphite nanoparticles (GtNPs) in sterilizing tissues and their role in enhancing genetic diversity, sweet potato is considered an important crop; hence its explants were used. In this experiment, GtNPs of 200, 400 and 800 ppm concentrations were used for sterilization of MS callus induction and regeneration media in Abees cultivar. The results showed that GtNPs had a good potential for...

Author(s): Aziza A. Aboulila, Ola A. Galal and M. F. M. El-Samahy

July 2018

Comparative evaluation of the physicochemical and pasting properties of flour from three varieties of Brachystegia spp.

The chemical compositions, functional and pasting properties of flour from three varieties of Brachystegia spp. (Brachystegia eurycoma, Brachystegia nigerica and Brachystegia kennedy) were studied. Results show that the chemical compositions of flour samples ranged from12.31 to 12.67% (protein), 1.66 to 1.72% (crude fiber), 2.06 to 2.39% (ash), 7.18 to 8.45% (fat), 3.85 to 4.75% (sugar) and 58.45 to 59.62% (starch)....

Author(s): Okorie, P. A. and Ikegwu, O. J.

July 2018

Molecular diagnosis of phytoplasma transmission from zygotic embryos to in vitro regenerated plants of coconut palm (Cocos nucifera L.)

The aim of this study was to investigate the transmission of the lethal yellowing disease (LYD) of coconut tree caused by a phytoplasma from the zygotic embryo to the regenerated plantlet in vitro. From a total of 30 trees, 150 mature coconut nuts where harvested. These nuts were used to extract 150 zygotic embryos. From this package, 96 zygotic embryos were used to regenerate 96 young coconut seedlings in vitro and the...

Author(s): DARAMCOUM Wentoin Alimata Marie Pierre, KONAN Konan Jean-Louis, YAO Saraka Didier Martial, YAIMA Arocha Rosete, KOFFI Eric-Blanchard Zadjéhi, YOBOUE Koffi, KOUASSI Kan Modeste, KOUADJO Claude Ghislaine, KOFFI Edmond, KOFFI Kouadio Kan Ghislain and N’GUETTA Assanvo Simon-Pierre

July 2018

Antimicrobial activity of metabolites extracted from Zanthoxylum gilletii, Markhamia lutea and their endophytic fungi against common bean bacterial pathogens

Antibacterial activity of extracts of Zanthoxylum gilletii, Markhamia lutea and their fungal endophytes were evaluated against bacterial pathogens of common bean: Xanthomonus axonopodis pv. phaseoli and Pseudomonus syringae pv. phaseolicola. The leaves of both plants were dried under shade, ground to fine powder and extracted using methanol. The methanol extracts were fractionated sequentially using ethylacetate and...

Author(s): Lucy Aketch Wanga, Isabel Nyokabi Wagara, Ramadhan Mwakubambanya and Josphat Clement Matasyoh