Abbreviation: Afr. J. Biotechnol.
Start Year: 2002
Page 461 of 585, showing 20 records out of 11683 total, starting on record 9201, ending on 9220
DOI: 10.5897/AJB2009.000-9183[Article Number: 1AAFF237420]
The quality assurance of valerian (Balchur), a traditional herbal drug of global importance mainly used for nervous disorders, was studied. At global, regional, national and local levels the end users of this drug face the problems of adulteration. Two different botanical sources are commercially marketed in the Indo-Pak subcontinent under the same trade name of Balchur belonging to two different families.... Read more.
DOI: 10.5897/AJB2009.000-9184[Article Number: C80B8777434]
Ninety Isa Brown layers from 51 to 61 weeks of age were allocated to three treatment groups, namely H0, H1 and H2. Control (H0) hens were fed a commercial diet while H1 and H2 hens were fed a diet including 30 and 90 ppm dietary humic acid in liquid form, respectively. Hens were placed individually in cages in three tier batteries. Egg production (% hen-day) in the... Read more.
DOI: 10.5897/AJB2009.000-9185[Article Number: 87719C27444]
Two primary flight muscles of Rhinolophus mehelyii were studied using morphological and histochemical analysis. Two fast-twitch fiber types are histochemically identified in pectoralis muscles of R. mehelyii. These were classified as type IIa and type IIb according to glycine-calcium-formalin preincubation staining protocol for myosin ATPase. The primary flight muscles, serratus ventralis... Read more.
DOI: 10.5897/AJB09.120[Article Number: 556882C7462]
Ten boars selected from each group of local Nigerian (LNB), Large White (LW) and LNB x LW (F1) crossbred boars were studied to determine the pattern of testicular development by external testicular measurements (length and width of testis) and to find out the relationship between external testicular dimensions body weight and sperm output. The results showed that LW boars were superior to both LNB and LNB x... Read more.
DOI: 10.5897/AJB2009.000-9186[Article Number: DF08C227453]
Polypogon monspeliensis a globally available natural waste material was used for uptake of Cd (II) from aqueous solutions in this study. The results clearly demonstrate the effect of important experimental parameters on the biosorption process in batch experiments. The evaluated pH, biosorbent dose, size and initial metal concentration for Cd (II) uptake by P. monspeliensis waste biomass... Read more.
DOI: 10.5897/AJB2009.000-9120[Article Number: 40617BD5570]
Polyhydroxyalkanoates (PHAs) as an attractive biopolymer with a wide range of applications have been extensively studied. Many new strategies have been employed to effectively and economically produce PHAs. This mini-review mainly focuses on the research and development of new PHAs-producing strains, utilization of renewable materials or industrial wastes, and high cell density culture technologies for PHAs... Read more.
DOI: 10.5897/AJB2009.000-9121[Article Number: D696DD25580]
Although ozone is widely used as an alternative medicine, its safety and efficiency are met with scepticism. To shed some light on this, we assessed the effect of ozone-autohaemotherapy, using an O2/O3 gas mixture containing three different O3concentrations (20, 40 and 80 µg/ml), on the antioxidant status and lymphocyte DNA integrity in baboons. Ultra pure O2 was used as a control because more... Read more.
DOI: 10.5897/AJB2009.000-9122[Article Number: CA3BC315588]
The major constituents, antimicrobial activities against 12 bacterial and 4 fungal species and the antioxidant activity of Rhynchosia minima essential oil were determined. The yield of the oil was 0.21%. The main components of the oil included isopropyl toluene, camphene and O-cymene. The essential oil exhibited marked activity against Escherichia coli, Staphylococcus aureus and... Read more.
DOI: 10.5897/AJB2009.000-9123[Article Number: 67741AB5596]
Proteus species are frequently recovered from infected wounds. They contaminate wounds and thus cause infections. This study was carried out at the University of Benin Teaching Hospital (UBTH) to determine the involvement of Proteus species as one of the major causative organisms in wound infections. The study also determined the sensitivity pattern of the Proteus isolates. This was a... Read more.
DOI: 10.5897/AJB2009.000-9124[Article Number: 17AED125610]
Single mycelium method was used to isolate endophytic fungi from surface-sterilized tissues of two medicinal plants. Of the 300 isolates recovered, 172 were from Dracaena cambodiana and 128 from Aquilaria sinensis. According to morphological characteristics, 174 (58%) isolates were identified and belonged to 41 taxa in 30 genera. The remaining 126 (42%) isolates did not... Read more.
DOI: 10.5897/AJB2009.000-9125[Article Number: 1A6FD6A5626]
Obesity is one of the leading cause of diabetes mellitus in the world population due to the growing trend of sedentary lifestyle and increased food consumption of high caloric diet. A concomitant increase due to this has been observed in coronary heart diseases, hypertension and even diabetes. High lipid profile of the serum is one of the factors that may result in the development of obesity in diabetes... Read more.
DOI: 10.5897/AJB2009.000-9126[Article Number: 29C836F5638]
Raised intracranial pressure (ICP), a serious and often fatal condition, is often not preventable. In the present study, the relationship was determined between cranial deformation and ICP change. To record the deformation of skull bone, strain foil was placed on the exterior surface of parietal skull. Prior to construction of finite-element model (FEM), using the rats, an in vivo study was... Read more.
DOI: 10.5897/AJB2009.000-9127[Article Number: 561B2295648]
Cucumber mosaic virus (CMV) causes major losses to thousand agricultural and horticultural crops around the world. Unlike other plant pathogens, there are no direct methods available yet to control viruses and, consequently, the current measures rely on indirect tactics to manage the viral diseases. Hence, methods for detection and identification of viruses, both in plants and vectors, play a critical... Read more.
DOI: 10.5897/AJB2009.000-9128[Article Number: AC4ABF85661]
Leptin is obesity gene involved in production and reproduction traits in domestic animals. In the present study complete leptin gene was sequenced in Yak hitherto uncharacterized. The complete leptin gene was sequenced using twelve sets of overlapping primers and submitted to the GenBank. BLAST analysis was performed with other livestock species revealed 98, 98, 97, 95, 95% homology with Bos... Read more.
DOI: 10.5897/AJB2009.000-9129[Article Number: 16AC7965670]
Informal interviews provided data about 245 useful plants of 77 families of 55 trees, 54 shrubs, 105 herbs, 15 climber, 10 grasses and 6 crops recorded from the Margallah Hills National Park, Islamabad. Two hundred and fifteen local/ vernacular names were noted of total plants. The inhabitants of the park have for a long time been dependent on surrounding plant resources for their food, health care, fodder,... Read more.
DOI: 10.5897/AJB2009.000-9130[Article Number: B4CC4485691]
The development, survival rate, reproduction and biological parameters of the corn leaf aphid, Rhopalosiphum maidis (Fitch), on five corn cultivars were evaluated at 25°C under laboratory conditions. The corn leaf aphid had a longer nymphal developmental time of 4.99, 4.98, 4.73, 4.46, and 5.60 day of Ada9516, K. Arifiye, PrimerG626, Pegaso and TTM815, respectively. The corn leaf aphid reared on... Read more.
DOI: 10.5897/AJB2009.000-9131[Article Number: 1B8C72A5733]
The objective of the present study is to evaluate the effect of modified atmosphere packaging (MAP) during storage on some quality parameters of strawberries. Strawberries (cv. Camarosa) were harvested when mature, forced air cooled and divided into two groups as fruits in MAP and control. After packaging, fruits were stored at 0°C, 90 - 95% RH for 10 days plus 1 day at 20°C and 50 - 55% RH for... Read more.
DOI: 10.5897/AJB2009.000-9132[Article Number: 8F6D8946107]
In this study, laser scanning confocal microscopy was applied to determine the localization and relative quantity of coumarins in stems of Dendrobium thyrsiflorumRchb. f. (Orchidaceae) when plants entered profuse flowering and initial fruit period during reproductive growth stage. Stems at the two growth stages were collected respectively. Distribution of coumarins in the top, middle and basal parts of... Read more.
DOI: 10.5897/AJB2009.000-9133[Article Number: 1AF1C0A6112]
Hybridization between white flowered Brassica carinata and yellow flowered B. rapawere made, and the flower chimeras were observed in a few hybrids. The simple single sequence molecular markers verified the hybridity of those hybrids.Chimeras were justified and totally classified based on the morphological characteristics of the flower petals that appeared in the hybrids... Read more.
DOI: 10.5897/AJB2009.000-9134[Article Number: 98669466131]
Sclerocarya birrea (A. Rich.) Hochst. (marula) is native to Africa occurring in the semi-arid, deciduous savannas of much of sub-Saharan Africa. It has multiple uses, including the fruits, kernels, oil, bark, wood and leaves which make it a key species to support the development of rural enterprises. Enhancing positive interactions between marula and other crops is key to successful introduction of... Read more.
Page 461 of 585, showing 20 records out of 11683 total, starting on record 9201, ending on 9220