Ojijo N. K. O. | Jomo Kenyatta University of Agriculture and Technology (original) (raw)
Experienced academic, researcher and development practitioner in agricultural research for development mainly in Africa.
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Papers by Ojijo N. K. O.
Journal of the Science of …, Jan 1, 2004
Journal of texture studies, Jan 1, 2007
![Research paper thumbnail of Minimization of cassava paste flow properties using the [] Farris effect'](https://attachments.academia-assets.com/34371216/thumbnails/1.jpg)
](LWT-Food Science and Technology, Jan 1, 2008
Ecology of food and …, Jan 1, 2009
The β-carotene content of fresh and dried mangoes commonly consumed in Kenya was evaluated and co... more The β-carotene content of fresh and dried mangoes commonly consumed in Kenya was evaluated and converted to retinol equivalent (RE). Mango fruits of varieties Ngowe, Apple, and Tommy Atkins were harvested at mature green, partially ripe, and ripe stages and their β-carotene content analyzed. The stability of β-carotene in sun dried mangoes was also studied over 6 months under usual marketing conditions used in Kenya. The effect of using simple pretreatment methods prior to drying of mango slices on retention of β-carotene was as well evaluated. In amounts acceptable to children and women, fresh and dried mangoes can supply 50% or more of the daily required retinol equivalent for children and women. Stage of ripeness, variety, postharvest holding temperature, method of drying, and storage time of dried mango slices affected β-carotene content and consequently vitamin A value of the fruits. Apple variety grown in Machakos had the highest β-carotene. It exceeded the daily RE requirements by 11.8% and 21.5% for women and children respectively. Fresh or dried mangoes are a significant provitamin A source and should be included in food-based approaches aiming to reduce vitamin A deficiency.
Electronic Journal of Environmental, Agricultural and …, Jan 1, 2011
Kenya Coffee ( …, Jan 1, 1993
Resumen: Se investigó la naturaleza y las causas detectadas en algunos lotes de café sin cualidad... more Resumen: Se investigó la naturaleza y las causas detectadas en algunos lotes de café sin cualidades organolépticas en Kenya. Estos estudios se llevaron a cabo a principios de 1993. En el análisis organoléptico del café procedente de la cosecha del año 1991-1992 ...
Journal of the Science of …, Jan 1, 2004
Journal of texture studies, Jan 1, 2007
LWT-Food Science and Technology, Jan 1, 2008
Ecology of food and …, Jan 1, 2009
The β-carotene content of fresh and dried mangoes commonly consumed in Kenya was evaluated and co... more The β-carotene content of fresh and dried mangoes commonly consumed in Kenya was evaluated and converted to retinol equivalent (RE). Mango fruits of varieties Ngowe, Apple, and Tommy Atkins were harvested at mature green, partially ripe, and ripe stages and their β-carotene content analyzed. The stability of β-carotene in sun dried mangoes was also studied over 6 months under usual marketing conditions used in Kenya. The effect of using simple pretreatment methods prior to drying of mango slices on retention of β-carotene was as well evaluated. In amounts acceptable to children and women, fresh and dried mangoes can supply 50% or more of the daily required retinol equivalent for children and women. Stage of ripeness, variety, postharvest holding temperature, method of drying, and storage time of dried mango slices affected β-carotene content and consequently vitamin A value of the fruits. Apple variety grown in Machakos had the highest β-carotene. It exceeded the daily RE requirements by 11.8% and 21.5% for women and children respectively. Fresh or dried mangoes are a significant provitamin A source and should be included in food-based approaches aiming to reduce vitamin A deficiency.
Electronic Journal of Environmental, Agricultural and …, Jan 1, 2011
Kenya Coffee ( …, Jan 1, 1993
Resumen: Se investigó la naturaleza y las causas detectadas en algunos lotes de café sin cualidad... more Resumen: Se investigó la naturaleza y las causas detectadas en algunos lotes de café sin cualidades organolépticas en Kenya. Estos estudios se llevaron a cabo a principios de 1993. En el análisis organoléptico del café procedente de la cosecha del año 1991-1992 ...
At the household level, legumes have the potential for a triple win - ensuring food security, ada... more At the household level, legumes have the potential for a triple win - ensuring food security, adaptation to climate change, and mitigation of GHG emissions. Through their potential contribution to ecological intensification and diversification of production patterns in various farming systems prevalent in Africa, they provide sustainable and viable livelihood-enhancing options. This means leguminous crops must necessarily occupy a central place in the food and nutrition security strategies of African countries.
For legumes to play a greater role in human nutrition and economic development, a number of issues still need research attention. These include technology advancements to improve legume yields and tolerance to biotic and abiotic stresses; screening for susceptibility to storage-induced textural changes; elimination of anti-nutritional and anti-metabolic factors; improving the protein quality and flavor characteristics; expanding the biofortification spectrum; and bioprospecting for more effective Rhizobium strains. Breeding (conventional or using genetic engineering) will be central in addressing many of these challenges, but other downstream value chain competencies (e.g. in processing and postharvest) will also be required.
Lessons emanating from progressive economies the world over attest to the paramount role of knowl... more Lessons emanating from progressive economies the world over attest to the paramount role of knowledge and knowledge systems (i.e., the generation, dissemination and use of knowledge) in fostering agricultural innovation and transformation. Over the last decade, the evolution and configuration of key agricultural research for development institutions at national and regional levels in SSA have been informed largely by changes in continental agricultural strategies and elaboration of organizing principles like agricultural innovation systems. There are noteworthy innovations on institutional layout and delivery of agricultural advisory services leveraging existing ICT platforms. In terms of funding, policy commitments at macro-level have not been matched by actions on the ground. However, there are tenable avenues for sustainable home-grown funding of AR4D in SSA countries. Capacity is a core imperative for agricultural transformation in Africa and there is need for a defined and evidence-based advocacy for capacity development by multiple organizations.
Lessons emanating from progressive economies the world over attest to the paramount role of knowl... more Lessons emanating from progressive economies the world over attest to the paramount role of knowledge and knowledge systems (i.e., the generation, dissemination and use of knowledge) in fostering agricultural innovation and transformation. Over the last decade, the evolution and configuration of key agricultural research for development institutions at national and regional levels in SSA have been informed largely by changes in continental agricultural strategies and elaboration of organizing principles like agricultural innovation systems. There are noteworthy innovations on institutional layout and delivery of agricultural advisory services leveraging existing ICT platforms. In terms of funding, policy commitments at macro-level have not been matched by actions on the ground. However, there are tenable avenues for sustainable home-grown funding of AR4D in SSA countries. Capacity is a core imperative for agricultural transformation in Africa and there is need for a defined and evidence-based advocacy for capacity development by multiple organizations. Drawing on case studies—Alliance for a Green Revolution in Africa (AGRA), Forum for Agriculture Research in Africa (FARA), Regional Universities Forum for Capacity Building in Africa (RUFORUM), African Network for Agriculture, Agroforestry and Natural Resources Education (ANAFE), Development Alternatives Inc. (DAI), and African Women in Agricultural Research and Development (AWARD)—this chapter discusses the state of Africa’s agricultural research and advisory systems and lessons from capacity development.