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Browsing Institute for Biotechnology Research (IBR) by Issue Date

Browsing Institute for Biotechnology Research (IBR) by Issue Date

Now showing items 1-20 of 84

Prevalence and factors associated with transfusion transmissible infections among blood donors at Regional blood transfusion center Nakuru and Tenwek Mission Hospital, Kenya

Bartonjo, Grace (Laboratory Management and Epidemiology , JKUAT, 2013)

Blood transfusion is an essential therapeutic procedure. Although timely transfusion saves millions of human lives worldwide each year, unsafe transfusion practices can put millions of people at risk of transfusion ...
Growth Characteristics, Enzyme Activity and Production of Secondary Metabolites from Selected Novel Streptomyces Isolates from Kenyan Soils

Karanja, Edward Nderitu (2013-03-12)

There is growing interest in evaluating the potential usefulness of enzymes in various industrial processes such as waste management, detergent manufacturing and food processing. This has led to the need in having knowledge ...
Characterization and selection of kenyan sweet potato (Ipomoea Batatas L.) genotypes for sweet potato virus disease resistance and high dry matter

Karuri, Hannah Wangari (2013-03-12)

Sweet potato virus disease (SPVD) is a major constraint to sweet potato production in Kenya. In addition to SPVD, low production of sweet potato in Kenya is also due to lack of cultivars with consumer quality attributes ...
Diversity and symbiotic efficiency of rhizobia isolated from Embu, Kenya

Mwenda, George Mutegi (2013-03-12)

A major strategy towards addressing soil fertility depletion is the conservation and sustainable use of rhizobia that are able to fix nitrogen in the soil in association with legumes. However, for maximum exploitation ...
Optimization of growth conditions of Bacillus thuringiensis isolates from various sources in Kenya and toxicity assays of their delta-endotoxin against Chilo partellus

Kwalimwa, Daniel Anyika (2013-03-12)

Chemical pesticides have disadvantages such as high production costs, short persistence, comparative low efficacy, development of resistance to toxin and causing ecological damage. In order to obtain cheaper biopesticides, ...
Isolation and Characterization of Antibiotic and Exoenzymes Producing Actinobacteria from Guts of Fungus-Cultivating Termites (Macrotermes Michaelseni)

Akhwale, Juliah Khayeli (2013-03-12)

Termites are an important group of insects that harbor a complex community of gut microbes which contribute to digestion and termite nutrition. Fungus-cultivating termites harbour dense populations of bacteria and archaea ...
Antimalarial activity and safety properties of Clausena anisata and Clutia robusta in a mouse model.

Murungi, Japhael Mbabu (2013-03-12)

In sub-Saharan Africa, malaria is responsible for approximately a million infant deaths a year, predominantly among the poor who have little or no access to modern medicine. This group represents some 75% of the world's ...
Characterization of soil bacteria capable of degrading selected organic pesticides applied in horticultural farms in Kenya

Miriti, Philip Mwenda (2013-03-12)

Pesticide use has been one of the major factors in improving productivity in agricultural enterprises. Pesticide residues in food and drinking water when ingested affect human health while ecosystems are also affected ...
Isolation, Identification and Characterization of Alkalithermophiles from the Hot Springs of Lake Bogoria of the Kenyan Rift Valley

Simasi, Lily (2013-03-12)

Hot springs are aquatic environments with high temperatures. They harbor diverse groups of micro-organisms that have developed mechanisms to thrive at wide temperature ranges, according to their optimal growth requirements. ...
Genetic Diversity and Population Structure of the Indigenous Sheep in Kenya Based on Microsatellite Analysis

Mukhongo, Denis Misiko (2013-03-12)

The knowledge of the genetic relationship and admixture among neighbouring populations is crucial for conservation efforts. The aim of this study was to analyze the genetic diversity and population structure of the ...
Assessment of Effects of Bacillus thuringiensis Cry1A(c) δ-endotoxin on nitrogen fixing bacteria and their host plants in clay soil

Makonde, Huxley Mae (2013-03-12)

Farming is the backbone of the Kenyan economy and is important in the production of food crops for basic livelihoods and income generation in rural areas. However, yields have remained low owing to high disease, weed and ...
Evaluation of in vitro protocols for the elimination of banana streak virus in tissue culture produced banana plantlets

Mungai, Grace Wacheke (2013-03-12)

Tissue culture (TC) propagation of banana crop has been used in many laboratories for mass production of planting materials which are free from plant pathogens. The Jomo Kenyatta University of Agriculture and Technology ...
Genetic Diversity and Prevalence of Echinococcus Species in Livestock in Maasailand and Turkana, Kenya Francis Addy

Addy, Francis (2014-02-14)

Cystic echinococcosis (CE) is a cosmopolitan zoonosis caused by Echinococcus granulosus sensu lato. Reported prevalence of CE from the Maasai and Turkana pastoral communities ranges from 3.6% to 19.4%. Echinococcus taxa ...
Somatic embryogenesis, molecular characterization and genetic transformability of the Kenyan Jatropha (Jatropha curcas L.)

Mweu, Cecilia Mbithe (2014-04-29)

Jatropha (Jatropha curcas L.) is considered a potential biofuel crop as it contains high amounts of oil in its seeds and has potential for other applications in agriculture and health. The major factors affecting Jatropha ...
Identification of soil nematodes in Ngere tea catchment area of Murang’a County, Kenya

Kibet, Tom Kosgei (2014-05-06)

xvii ABSTRACT Tea is one of the leading cash crops in Kenya and makes significant contribution to the economy. It is with this reason that intensive studies are needed to expand and sustain tea production. Nematodes are ...
Collection, Morphological and Molecular Characterization of Papaya Germplasm in Kenya.

Asudi, George Ochieng (2014-05-19)

Papaya is one of the major fruit crops of the tropical regions of the world. It shows considerable phenotypic variation in morphological and horticultural traits that can be utilized in its genetic improvement. The objectives ...
Micropropagation of allanblackia stuhlmannii ‘clusiaceae’, an economically important wild tree species

Neondo, Johnstone Omukhulu (2014-05-19)

Allanblackia stuhlmannii is an endangered forest tree valued for its edible nut oil which has high potential for commercialization. This tree grows naturally in the Eastern Arc Mountains of Tanzania. Regeneration of A. ...
Optimization of growth conditions of Bacillus thuringiensis isolates from various sources in Kenya and toxicity assays of their delta-endotoxin against Chilo partellus

Kwalimwa, Daniel Anyika (2014-05-19)

Chemical pesticides have disadvantages such as high production costs, short persistence, comparative low efficacy, development of resistance to toxin and causing ecological damage. In order to obtain cheaper biopesticides, ...
GENETIC DIVERSITY AND NITROGEN FIXING POTENTIAL OF LEGUME NODULATING BACTERIA FROM DIFFERENT LAND USE SYSTEMS IN TAITA DISTRICT, KENYA

MWANGI, SIMON NGARE (2014-05-19)

Soil fertility is a serious problem especially in tropical and subtropical regions of the developing countries. Available soil nitrogen is one of the most limiting factors to crop production. Lack of nitrogen in soils can ...
Isolation and Characterization of Antibiotic and Exoenzymes Producing Actinobacteria from Guts of Fungus-Cultivating Termites (Macrotermes Michaelseni)

Akhwale, Juliah Khayeli (2014-05-19)

Members of the genus Pleurotus are macro fungi belonging to the phylum Basiomycetes. They are important source of food and medicinal compounds among many local communities. Limited studies have been done to identify and ...

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