African Journal of

  • Abbreviation: Afr. J. Biotechnol.
  • Language: English
  • ISSN: 1684-5315
  • DOI: 10.5897/AJB
  • Start Year: 2002
  • Published Articles: 12485

Table of Content: 29 March, 2017; 16(13)

March 2017

Bioactivity of ethanolic extracts of Euphorbia pulcherrima on Spodoptera frugiperda (J.E. Smith) (Lepidoptera: Noctuidae)

The fall armyworm, Spodoptera frugiperda (J.E. Smith) (Lepidoptera: Noctuidae) is a polyphagous species which attacks many economically important crops in several countries. This insect is an important pest of corn, and currently the most widely used control method is chemical. In order to minimize environmental impacts, other forms of control have been tried, and accordingly, the investigation of plants with...

Author(s): Viviane Tavares Almeida, Vânia Maria Ramos,, Matheus Barbosa Saqueti, Pedro Henrique Gorni, Ana Cláudia Pacheco and Renato Marcos de Leão,

March 2017

Efficiency of the partial substitution of agar with potato starch on the growth and phytochemical parameters of lulo (Solanum quitoense) cultured in vitro

The demand for agar, thanks to its different uses, generates the need to look for alternative substances that replace it. This work studied the influence of four different additions of potato starch into agar media (T1 = 50%, T2 = 45%, T3 = 40% and T4 = 0%) on the growth and chemical composition of essential oils of lulo (Solanum quitoense) explants cultured in vitro. The lengths, fresh and dry biomass weights, and...

Author(s): D. A. Martin G., Oswaldo E. Cárdenas-González, José Pacheco, Maritza De Jesus-Echevarría and Jovanny A. Gómez Castaño

March 2017

Evaluation and association mapping of agronomic traits for drought tolerance in sorghum [Sorghum bicolor (L.) Moench]

Drought is the major sorghum production constraint in Ethopia which necessitates the identification of sorghum genotypes that carry genes (quantitative trait locus, QTL) associated with drought tolerance thereby developing drought tolerant sorghum varieties. The objectives of this study were to identify drought tolerant sorghum genotypes, map chromosomal regions (QTLs) associated with agronomically important traits and...

Author(s): Aleye Endre and Kassahun Bantte

March 2017

Isolation and characterization of heavy metals resistant Rhizobium isolates from different governorates in Egypt

Contamination of soil with heavy metals is one of the major environmental problems in many countries that reach from many sources as power stations, application of metal pesticides, fertilizers, and sewage sludge. In this study, ten Rhizobium leguminosarum bv. viciae isolates were collected from different governorates in Egypt (Menoufia, Kafr El-Sheikh, Qalubia, Fayoum, Ismailia, Sharkya, Dakhalia, Behira and North...

Author(s): Khalid S. Abdel-lateif,

March 2017

Morphometric characterization of Jatropha curcas germplasm of North-East India

The morphological variation among Jatropha curcas L. populations from 29 different locations of North-East India was determined. Four populations from other parts of India were also incorporated in the study as an out-group. The morphological trait based analysis of J. curcas revealed large variation of quantitative traits among the populations. Of the six morphological traits used in this study, the highest variation...

Author(s): Adreeja Basu, Lokanadha Rao Gunupuru and Lingaraj Sahoo,

March 2017

Effect of Brazil nut oil (Bertholletia excelsa HBK) on the physical, chemical, sensory and microbiological characteristics of a mayonnaise-type emulsion

The objective of this study was to evaluate the influence of emulsifiers on the chemicophysical, colorimetric, microscopic and sensorial properties, and the stability of a mayonnaise-type emulsion prepared with Brazil nut oil (Bertholletia excelsa H.B.K). For this purpose, two emulsifiers were used: a soya protein isolate and dehydrated and pasteurised egg yolk as a source of protein. Both formulations had high energy...

Author(s): Cristina Grace de Sousa Guerra, Jaime Paiva Lopes Aguiar, Wallice Luiz Paxiuba Duncan, Ariane Mendonça Kluckzosvki and Francisca das Chagas do Amaral Souza

March 2017

Phenolic compounds and antioxidant activity of red and white grapes on different rootstocks

This study aimed to assess the rootstocks influence over total phenolic compound content, antioxidant activity and its correlation in different red and white grapes cultivars for wine production. This study conducted an experimental three-year-old vineyard, located in Jundiai, in the State of São Paulo, Brazil, from July 2013 to January 2014. Red and white grapes from Vitis vinifera L. (Cabernet Sauvignon,...

Author(s): Marlon Jocimar Rodrigues da Silva, Bruna Thaís Ferracioli Vedoato, Giuseppina Pace Pereira Lima, Mara Fernandes Moura, Giovanni Marcello de Angeli Gilli Coser, Charles Yukihiro Watanabe and Marco Antonio Tecchio

March 2017

Isolation and identification of Talaromyces purpurogenus and preliminary studies on its pigment production potentials in solid state cultures

Pigments from various sources such as annatto seeds, cochineal, beet root, and microalgae are widely used in food, pharmaceutical, cosmetics, textile and other industries. However, these sources of pigments have various limitations such as toxicity and environmental pollution of synthetic pigments, and low productivity of pigments from higher organisms due to long period of growth. The objective of this study was to...

Author(s): Christiana N. Ogbonna, Hideki Aoyagi and James C. Ogbonna