Abbreviation: Afr. J. Biotechnol.
Start Year: 2002
Page 1 of 586, showing 20 records out of 11715 total, starting on record 1, ending on 20
DOI: 10.5897/AJB2016.15643[Article Number: CA73EA662992]
This study was to examine the efficiency of native microorganisms, in relation to the commercial bacterium Clostridium thermocellum ATCC 27405 for bioethanol production from waste watermelon on a pilot scale. The raw material was subjected to a grinding process for the later stage of hydrolysis under different temperatures using Aspergillus fumigatus and Leuconostoc dextranicum native microorganisms. This was followed... Read more.
DOI: 10.5897/AJB2017.15881[Article Number: 22E331862997]
This study aimed to evaluate the antifungal activity of essential oils of Thymus vulgaris L., Cinnamomum zeylanicum B. and Mentha piperita L. on some saprophytic fungi. Essential oils were extracted by hydro-distillation, and chemical composition was analysed by gas chromatography coupled with mass spectrometry (GC-MS). T. vulgaris had as major components, Thymol (35.12%), p-cymene (25.36%) and γ–terpinene... Read more.
DOI: 10.5897/AJB2016.15840[Article Number: E0E064C63001]
Biological extracts have recently shown a great potential for rapid biosynthesis of silver nanoparticles (AgNPs) with antibacterial activity. AgNPs were synthetized by reduction effect of secondary metabolites produced by the Nigrospora sp. fungus, from Moringa oleifera stem as a reducing agent and silver nitrate (AgNO3) (1 mM) as salt precursor. The synthesis of nanoparticles (NPs) was monitored through analysis of the... Read more.
DOI: 10.5897/AJB2015.14885[Article Number: 43907DC63005]
Bacteria were isolated by enrichment culture technique from groundnut (Arachis hypogaea L.) soils and tested for their ability to degrade monocrotophos in mineral salts medium under aerobic conditions in the laboratory. Based on some of the morphological and 16S rRNA gene sequence analysis, the isolates were identified as Rhodococcus phenolicus strain MCP1 and Rhodococcus ruber strain MCP-2. The initial (0-day) recovery... Read more.
DOI: 10.5897/AJB2016.15831[Article Number: EC56A6863009]
This work aimed to develop a protocol for the in vitro establishment, multiplication, rooting and ex vitro acclimatization of Mimosa pudica L., a species used in folk medicine and with pharmacological activity. Aseptic cultures were established from seeds inoculated in MS medium, without growth regulators, followed by an in vitro stabilization phase in culture medium supplemented with 2.22 μM BAP. The cultures were... Read more.
DOI: 10.5897/AJB2017.15895[Article Number: 5691F1563013]
Fruits of persimmon are considered as one of the health promoting foods which has been established as one of the major fruits in Korea. Persimmon is one of the fruits processed mainly by drying. Quality characteristics of dried persimmon prepared with different fruit sizes of cultivar Sanggandungsi were investigated. Smaller sized fruits showed significantly high weight loss as compared to bigger ones due to drying. On... Read more.
DOI: 10.5897/AJB2016.15766[Article Number: F5BEF6062934]
This study estimated genetic parameters, identified traits of direct and indirect correlation with the grain yield through path analysis and select superior lines, maximizing genetic gain. Two experiments were conducted in 2012/2013 season in randomized blocks with three replications. 23 lines (experiment I) and 44 lines (experiment II) were seeded. For all traits analyzed in both experiments, there was a significant... Read more.
DOI: 10.5897/AJB2016.15651[Article Number: 8490A6C62936]
The feasibility of growing Euglena gracilis in some crop fertilizers was investigated and some biological activities of the produced biomass were evaluated. A fed-batch mixotrophic culture was done in an airlift photobioreactor operated at an aeration rate of 0.2 vvm. A final biomass concentration of 2.6 gL-1 obtained with NPK15:15:15 after 96 h of cultivation was significantly lower than the 5.7 gL-1 obtained with BGII... Read more.
DOI: 10.5897/AJB2016.15768[Article Number: 5B872C162938]
Sweet cassava is a food culture of great importance because it is a source of nutrition and energy for millions of people in tropical and sub-tropical regions. For that reason, genetic diversity and population structure studies are necessary in order to obtain more information regarding the evaluated genotypes, reassuring their use in future breeding programs. The objective of this study was to evaluate the genetic... Read more.
DOI: 10.5897/AJB2016.15801[Article Number: CAEB2E362940]
The deficiency of protein in human food and animal feed is well recognized due to the rapid growth of population. It is therefore, important to increase protein production by utilizing all the available ways and means. In the light of this, an attempt was made in this study by selecting Candida utilis NOY1. This yeast was used to determine the optimum concentration of different minerals salts and nitrogen source on... Read more.
DOI: 10.5897/AJB2016.15372[Article Number: 5A3662A62942]
Repeat breeder (RB) is a cow that fails to conceive from three or more successive insemination, but with normal estrus and absence of detectable clinical abnormalities. It is one of the major problems in dairy production. In the present study, the plasma biochemistry of Sudanese crossbred RB cows was examined. Plasma glucose, total cholesterol (TC), triacylglycerol (TG), total protein (TP) and urea nitrogen were... Read more.
DOI: 10.5897/AJB2016.15697[Article Number: 2DB112862952]
The doubled haploid (DH) technology enables maize breeders to develop a large number of homozygous lines rapidly and test them in hybrid combinations early in the breeding cycle. The objectives of this study were to evaluate testcross performance of 556 DH lines derived from 10 diverse tropical backcross (BC1) populations, and to estimate variance components and broad-sense heritability under both well-watered and... Read more.
DOI: 10.5897/AJB2016.15721[Article Number: 759466B62779]
Microalgae are unicellular photosynthetic organisms that inhabit diverse ecological habitats ranging from freshwater and brackish water to seawater and wastewater. They are also especially equipped to thrive in extreme temperatures and pH conditions. Decades of research have highlighted their potential as sources of biofuels, foods, feeds and high-value bio-actives. However, industrial-scale cultivation of microalgae is... Read more.
DOI: 10.5897/AJB2016.15537[Article Number: 382616F62782]
The present study was carried out to ascertain the genetic status of soybean and maize crops introduced in Algeria and to test local and imported products containing maize and soybean for the presence of genetically modified organisms (GMO into the food and feed chain). Samples from crops and processed food products were selected, randomly sampled and screened by polymerase chain reaction (PCR) for the presence of the... Read more.
DOI: 10.5897/AJB2016.15786[Article Number: 313EF9262783]
Mangaba (Hancornia speciosa Gomes - Apocynaceae) is a native fruit of Brazil which is of great importance in its areas of occurrence. This species has been subjected to habitat fragmentation that is mainly due to human activity, and requires conservation. The aim of the present review was to evaluate the biotechnological advances in the species. This paper deals with recent studies on the genetic diversity and bioactive... Read more.
DOI: 10.5897/AJB2016.15796[Article Number: 1CA06B062784]
A study was conducted to investigate genetic diversity and population structure among populations of Nile tilapia Oreochromis niloticus (Cichlidae) in the Volta Lake of Ghana using microsatellite markers. Four hundred (400) fish specimens were obtained from nine naturally occurring subpopulations and one selectively bred strain, ‘Akosombo strain’. These were characterized using 15 microsatellite loci. Twelve... Read more.
DOI: 10.5897/AJB2016.15746[Article Number: DE3F33762702]
Manufacturing industries contribute about 8% of the gross domestic products (GDP) whereas leather and textile industries supply 18% employments of manufacturing industries in Tanzania. Manufacturing industries merely depend on agriculture for raw materials and other inputs. However, processing of leather and textiles requires a lot of inputs, many of them supplied from agricultural produce and some are imported from... Read more.
DOI: 10.5897/AJB2016.15140[Article Number: 4FBE05162705]
The objectives of this study were to evaluate the relative expression stability of five candidate reference genes in the semimembranosus (SM) and longissimus thoracis (LT) of beef steers, heifers and young bulls. The mRNA levels of Beta-Actin, eukaryotic initiation factor-2B Subunit 2, glyceraldehyde-3-phosphate dehydrogenase, peptidylprolyl isomerase-A and succinate dehydrogenase complex-subunit A were quantified using... Read more.
DOI: 10.5897/AJB11.1164[Article Number: 36395E062708]
The role of the ectomycorrhizal (Myc) fungus Suillus luteus as a biological control agent against damping off caused by Fusarium verticillioides (Fo) and Fusarium oxysporum (Fm) on Scots (Pinus sylvestris L.) and Stone pine (Pinus pinea L.) was studied in a greenhouse experiment. The vegetative mycelium of S. luteus in a vermiculite/peat carrier was added to potting substrate before inoculation with Fo or Fm spores... Read more.
DOI: 10.5897/AJB2016.15836[Article Number: 137916962711]
The objective of the current study was to evaluate and compare the effectiveness of cranberry extracts and bone marrow cells against chlorambucil (CHB) effect on rats' fertility. Forty adult male albino rats were divided randomly into eight equal groups as the following; normal control, rats injected orally with 0.2 mg/kg of CHB for 14 days, rats injected orally with 100 mg/kg of cranberry extract (CB) for ten days,... Read more.
Page 1 of 586, showing 20 records out of 11715 total, starting on record 1, ending on 20