African Journal of
Biotechnology

  • Abbreviation: Afr. J. Biotechnol.
  • Language: English
  • ISSN: 1684-5315
  • DOI: 10.5897/AJB
  • Start Year: 2002
  • Published Articles: 12267

Table of Content: 17 August, 2016; 15(33)

August 2016

Organic and conventional vegetables: Comparison of the physical and chemical characteristics and antioxidant activity

The objective of this research was to compare the physical and chemical characteristics and antioxidant activity of organic and conventional carrot (Daucus carota), green pepper (Capsicum annuum) and lettuce (Lactuca sativa). Five representative samples of  conventional vegetables, certified organic and non-certified organic vegetables were gotten from farms and supermarkets in the city of Rio de Janeiro. The...

Author(s): Fernanda de Oliveira Pereira, Renata dos Santos Pereira, Lana de Souza Rosa and Anderson Junger Teodoro

August 2016

Oxidative enzymes in coconut cultivars in response to Raoiella indica feeding

The increase in oxidative enzyme activities is related to diminished mite infestation. Some biological aspects of Raoiella indica Hirst reared on the coconut cultivars (‘Jamaican Tall’ (JT), ‘Malayan Yellow Dwarf’ (MYD), Niu Leka (NL) and a hybrid JT x MYD) were studied under laboratory conditions. Aditionally, changes in oxidative enzyme activities (peroxidase and polyphenol oxidase) as response...

Author(s): Carlos Vásquez, Marta Dávila, Naileth Méndez, María A. Jiménez and María F. Sandoval and Francisco J. Alcalá,

August 2016

Ovarian follicular dynamics in purebred and crossbred Boran cows in Ethiopia

Boran is an endangered breed of cattle indigenous to Ethiopia and the relatively poor understanding of its reproductive physiology has impeded efforts to maximize reproductive performance of the breed. This study characterized ovarian follicular dynamics in 9 purebred Boran and 8 Boran×Holstein (B×H) crossbred cows. Ovaries of all 17 cows were examined once per day for 61 consecutive days (encompassing three...

Author(s): Tamrat Degefa, Alemayehu Lemma, Jeilu Jemal, Gbremeskel Mamo, Azage Tegegne and Curtis R. Youngs

August 2016

Micropropagation of caçari under different nutritive culture media, antioxidants, and levels of agar and pH

The caçari (Myrciaria dubia) is a native fruit tree from Amazon with high concentrations of vitamin C. This study aimed to adjust a culture medium that meets the nutritional needs for the in vitro development of caçari, evaluating the effect of different concentrations and nutritive culture media, antioxidant, and levels of agar and pH. Three experiments were carried out in a completely randomized design:...

Author(s): Maria Da Conceicao Da Rocha Araujo, Edvan Alves Chagas, Maria Isabel Ribeiro Garcia, Sara Thiele Sobral Pinto, Pollyana Cardoso Chagas, Wagner Vendrame, Adamor Barbosa Mota Filho and Olisson Mesquita de Souza

August 2016

Plant growth-promotion by Streptomyces spp. in sorghum (Sorghum bicolor L.)

Seven strains of Streptomyces spp.: BCA-546 (KF770898), BCA-659 (KF770889), BCA-667 (KF770888), BCA-689 (KF770899), BCA-698 (KF770900), CAI-133 (KF770895) and CAI-8 (KF770890), reported earlier to produce biocontrol and plant growth-promoting (PGP) substances were further evaluated for PGP traits in sorghum under greenhouse and field conditions. Under greenhouse conditions, plant height, leaf area and weight, root...

Author(s): Gottumukkala Alekhya, and Subramaniam Gopalakrishnan

August 2016

Nutritional and antimicrobial evaluation of Saccharum officinarum consumed in Calabar, Nigeria

Sugarcane (Saccharum officinarum) stem pulp is widely consumed in Nigeria as a snack mainly for sugar content and is believed to possess some remedy against infectious diseases. This study therefore quantitatively evaluated the nutritional and chemical composition of the sugarcane stem pulp with a view to validating this claim. The results of proximate composition indicate relatively high amount of moisture (71.91...

Author(s): Ima Okon Williams, Eridiong Ogbonna Onyenweaku and Item Justin Atangwho