Abbreviation: Afr. J. Biotechnol.
Start Year: 2002
Page 1 of 584, showing 20 records out of 11679 total, starting on record 1, ending on 20
DOI: 10.5897/AJB2016.15714[Article Number: 5C36C5162374]
Honey is a sweet viscous liquid produced by honey bee, Apis mellifera from the nectar of plants. Honey is a natural product that has been used from ancient times till now as food and for medicinal purpose. This study was carried out to determine the mode of action of Bacillus species and antibiotics residues in branded and unbranded honey samples from Nigeria. Bacilli spp. count was carried out by initially heating... Read more.
DOI: 10.5897/AJB2016.15769[Article Number: 89B45F062376]
Nocturnal dark respiration (Rn) in wild type and transgenic soybean plants grown at SoyFACE research facility, Illinois, USA under ambient and elevated CO2 conditions was examined in this study. Transgenic plants were transformed to overexpress a key Calvin cycle enzyme sedoheptulose-1,7-bisphosphatase (SBP) which is thought to improve yield in the field by at least 11%. Heating was applied using infrared heaters... Read more.
DOI: 10.5897/AJB2015.15191[Article Number: 8958BAD62378]
Jackfruit (Artocarpus heterophyllus L.) is a cross pollinated fruit tree valued mainly for its fruit and timber wood. Although the crop has been introduced to Ethiopia and adapted well to the Jimma area, its potential for production has not been exploited due to the absence of an efficient method for large scale propagation. Micropropagation is a method for production of large number of genetically uniform planting... Read more.
DOI: 10.5897/AJB2016. 15735[Article Number: 8C8D1B562380]
The objective of the present study was to evaluate the effects of clinical mastitis at the beginning of lactation on reproductive performance of dairy cows in Algeria. Calving to first insemination and calving to conception intervals, number of insemination per conception and conception rate at the first artificial insemination were recorded for 432 cows from 16 dairy herds in Algeria. Cows were examined for clinical... Read more.
DOI: 10.5897/AJB2016.15820[Article Number: 163AD9E62382]
A total of 56 Gram negative bacterial isolates were recovered from twenty ground beef samples and were screened for their potentiality to produce lipase. Forty four bacterial isolates were recorded as positive producers for lipase on tween as carbon source in solid medium. Also, the highly producer isolates were screened for lipase activity in submerged culture using olive oil as carbon and the most active isolate was... Read more.
DOI: 10.5897/AJB2016.15720[Article Number: 0FAB98862240]
A study was conducted to detect the presence of disease resistance genes to infection of wheat powdery mildew (Blumeria graminis f. sp. tritici) in selected wheat cultivars from China using molecular markers. Genomic DNA of sixty cultivars was extracted and tested for the presence of selected prominent resistance genes to the fungal disease using molecular markers linked to Pm genes. Results showed that 17 cultivars... Read more.
DOI: 10.5897/AJB2013.13121[Article Number: 871A32F62233]
Functional properties of gelatin from skin of striped catfish with and without bleaching for 48 h by 5% H2O2 (w/v)) were studied. Gelatin from skin bleached with 5% H2O2 for 48 h showed the highest yield (16.18 g). Bleaching not only improved the colour of gelatin gel by increasing the L* (lightness)-value and decreasing a*(redness/greenness)-value, but also enhanced the bloom strength and the emulsifying and foaming... Read more.
DOI: 10.5897/AJB2016.15234[Article Number: EEEBB7262236]
Understanding the mechanisms underlying Argania spinosa responses to drought stress is essential for its regeneration and domestication. Toward that end, an integrative study of tolerance responses to drought stress in four A. spinosa ecotypes (2 contrasting coastal ecotypes (Adm and Rab) and 2 contrasting inland ecotypes (Alz and Lks)) have been conducted. Responses to soil drying and re-watering were measured at... Read more.
DOI: 10.5897/AJB2016.15676[Article Number: D5555AD62242]
Panteka stream is a flowing stream polluted with wastes from the activities of mechanics. Water samples collected at different points of the stream were analysed in order to determine the level of heavy metal contamination and bacteria diversity with the view to elucidating the bioremediating potentials of the bacteria isolates. Four bacteria, tolerant to heavy metals, were isolated from Panteka stream. These were... Read more.
DOI: 10.5897/AJB2016.15369[Article Number: 65FB88762244]
Date by-products constitute the principal food for the oasis populations in Middle East and North Africa. Dates contents consist of 70 to 80% of reducing sugars, and do not require an intensive energy and labour for thermophysical pre-treatment. They can serve as a good feedstock for bioethanol generation through fermentation and distillation. Algeria is among the top sixth producers of dates in the world with more than... Read more.
DOI: 10.5897/AJB2015.15134[Article Number: 34843B162248]
In eastern semi-arid Zimbabwe, planting basins are mostly used to boost maize yields, but still low yields are often obtained due to poor choices of varieties to grow. A comparative study of growth and yield of the only two locally and commonly grown Pioneer cultivars (P2859W and PHB3253) under planting basin technique (PBT) was carried out to determine a more adaptable cultivar in Guhune, eastern Zimbabwe (NR IV). The... Read more.
DOI: 10.5897/AJB2016.15255[Article Number: 83D99A662168]
In this study, Bacillus circulans Xue-113168 biofertilizer was produced through solid state fermentation processes using food waste and feldspar. Results confirmed that solid state fermentation has considerable advantages compared to complex process (solid-state and bio-bleach). The control of pH, temperature, and humidity effectively led to the formation of 2×109 cfu/g spore and dissolution of potassium at a rate... Read more.
DOI: 10.5897/AJB2016.15589[Article Number: 36C4B9662170]
The present study was carried out to evaluate the effect of reducing wilt disease through the medium of fresh chicken manure (FCM) mixed with soil before solarized and then artificial Verticillium dahliae (V.d) inoculation on yield of eggplant (Solanum melongena L.) under field conditions. According to the split-plot design, solarization of main plots, sub-plots with fresh chicken manure and V dahliae inoculation were... Read more.
DOI: 10.5897/AJB2016.15713[Article Number: 44297A562173]
Biotic and abiotic stress particularly fungal diseases and salinity are major challenges facing mango cultivations in Oman. Micropropagation technique for multiplying disease resistant and salinity tolerant elite cultivars could be utilized to replace dead and infected plants in mango orchards but standardize in-vitro regeneration protocol via somatic embryogenesis is prerequisite. Nucellar tissues from immature mango... Read more.
DOI: 10.5897/AJB2016.15464[Article Number: 528FF4562176]
The Ethiopian genetic center is considered to be one of the secondary centers of diversity for the common bean. This study was conducted to characterize the distribution of genetic diversity between and within ecological/geographical regions of Ethiopia. A germplasm sample of 116 landrace accessions was developed, which represented different common bean production ecologies and seed types common in the country. This... Read more.
DOI: 10.5897/AJB2016.15669[Article Number: FEC36ED62117]
The aim of the study was to evaluate the experimental acute and sub-chronic toxicities of Operculina macrocarpa with plant extract and powder, respectively, in male and female mice. Phytochemical prospection was performed with extract and administration in single doses by intraperitoneal route to six groups and control at 1230, 970, 700, 350, 120 and 30 mg/kg doses and distilled water (0.1 ml/10 g), respectively.... Read more.
DOI: 10.5897/AJB2016.15737[Article Number: C8AB24962119]
Hemophilia B is inherited as x-linked recessive disorder, carried by females, where males are affected. Rare cases of females affected with hemophilia B are known. This is also known as factor IX (FIX) deficiency, or "Christmas disease", originally named after Stephen Christmas; the first patient was described with this disease in 1952. It is characterized by spontaneous or prolonged hemorrages due to factor... Read more.
DOI: 10.5897/AJB2015.14938[Article Number: 06A5DAA62121]
Current treatment of trypanosomosis in sub-Saharan Africa is associated with widespread inefficiency. There is therefore the need to find more effective drugs against the disease from promising traditional medicinal herbs. This work is aimed at evaluating ex vivo anti-trypanosomal effect of stem-bark extracts of S. longipedunculata against T. brucei brucei. One hundred microlitre of crude methanol, ethyl acetate and... Read more.
DOI: 10.5897/AJB2016.15554[Article Number: 5629E5E62025]
HIV-1 genetic diversity in sub-Saharan Africa is broad and the AIDS epidemic is driven predominantly by recombinants in Central and West Africa. The classification of HIV-1 strains is therefore necessary to understand diagnostic efficiency, individual treatment responses as well as options for designing vaccines and antiretroviral (ARV) treatment guidelines. More so, accurate subtyping of a partial or full genome would... Read more.
DOI: 10.5897/AJB2016.15207[Article Number: DA5AC3D62028]
This study aimed to evaluate the effect of supplementation of sucralose and fructose on the metabolism of adolescent rats. Eighteen male Wistar rats were divided into 3 groups: control group (GC), fructose group (GF) treated with 50 mg/kg of fructose, and sucralose group (GS) receiving 50 mg/kg of sucralose for 24 days. The weight and feed intake were measured weekly. At the end of the experiment, some biochemical... Read more.
Page 1 of 584, showing 20 records out of 11679 total, starting on record 1, ending on 20