21 research outputs found

    The international exchange and testing of cassava germ plasm in Africa

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    Triticale : proceedings of an international symposium

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    Meeting: International Symposium on Triticale, 1-3 Oct. 1973, El Batán, MXCompilation of papers on triticale - discusses plant breeding, research programmes and genetic improvement of triticale. Includes list of participants and statistical data

    Chronic cassava toxicity : proceedings of an Interdisciplinary Workshop

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    Meeting: Interdisciplinary Workshop on Chronic Cassava Toxicity, 29-30 Jan. 1973, London, GBMonograph on research on chronic toxicity from toxinogenic agents in cassava - reviews the state of knowledge about the effects of cyanogenic glucosides on human and animal health, and their role in disease incidence, within the context of current research programmes on the use of cassava as animal feed. Statistical data, bibliography

    Proceedings of the Fourth Symposium of the International Society for Tropical Root Crops

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    Meeting: International Society for Tropical Root Crops Symposium, 4th, 1-7 Aug. 1976, Cali, C

    Cassava bacterial blight : report of an interdisciplinary workshop

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    Meeting: Interdisciplinary Workshop on Cassava Bacterial Blight, 1-4 Nov. 1976, Ibadan, NGReport of a workshop on the cassava bacterial blight (CBB) plant disease in Africa south of Sahara - discusses the diagnosis and geographic distribution of CBB, influence of shade and intercropping on its incidence; plant breeding for disease resistance; disease control efforts in Nigeria, Zaire and Ghana. Includes country statements from Benin PR, Congo PR, Ghana and Togo

    Influence of micronization (infrared treatment) on the protein and functional quality of a ready-to-eat sorghum-cowpea African porridge for young child-feeding

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    Indigenous plant foods play a major nutritional and cultural role in the diets of rural people in Africa. However, they can contain high levels of antinutrients, which may exacerbate nutritional and health problems in young children consuming nutrient deficient diets. Also, the rapid increase in urbanization in Africa has led to the need for convenience type meals. This study investigated the potential of micronization (infrared treatment) in combination with extrusion cooking in developing a ready-to-eat sorghum and cowpea based porridge supplemented with cooked cowpea leaves for young child-feeding. Micronization not only inactivated the trypsin inhibitors in cowpea, it also produced an instantized product with excellent hydration properties. When served as a stiff porridge with cooked cowpea leaves in the recommended portion sizes for children aged 2e5 years, one daily serving would meet 40% of the children's protein and lysine requirements. Further, the calculated Protein Digestibility Corrected Amino Acid Score would be comparable to commercial maize-soy instant products. This is notwithstanding that the cowpea leaves had a negative effect on protein digestibility due to their high tannin content. This nutritious ready-to-eat meal from locally available plant foods could contribute substantially to food security in both urban and rural communities in Africa.University of Pretoria Institutional Research Theme fundinghttp://www.elsevier.com/locate/lwt2016-10-31hb201

    Effects of processing and addition of a cowpea leaf relish on the iron and zinc nutritive value of a ready-to-eat sorghum-cowpea porridge aimed at young children

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    While dietary diversification of monotonous cereal-based diets using legumes and vegetables can alleviate the high prevalence of iron and zinc deficiencies in sub-Saharan African children, laborious cooking times limit the use of particularly legumes. This study investigated the effects of high-temperature short-time (HTST) processing on sorghum (extrusion) and cowpea (micronisation), compositing sorghum-cowpea (70:30) (ESMC) in a ready-to-eat porridge and addition of cowpea leaves on iron and zinc bioaccessibilities compared to a commercial fortified maize:soy ready-to-eat porridge. HTST processing increased iron bioaccessibility from both grains and the zinc bioaccessibility from the sorghum. One serving of ESMC porridge with cowpea leaves could contribute z85 and 18% towards the iron and zinc RDA of preschool children, compared to the commercial product at z84 and 125%, respectively. However, the higher iron and zinc bioaccessibilities from the ESMC porridge with cowpea leaves, compared to the commercial product (11.8 vs. 5.0% and 18.9 vs 2.7%, respectively) means it would provide more bioaccessible iron (2.24 vs. 0.86 mg/100 g, db) and similar levels of zinc (0.35 vs. 0.32 mg/ 100 g) towards the absolute/basal requirements of preschool children. The ESMC porridge with cowpea leaves could improve the iron and zinc nutritive value of preschool sub-Saharan African children’s diets.This publication was made possible through support provided by the Office of Agricultural Research and Policy, Bureau for Food Security, U.S. Agency for International Development, under the terms of Cooperative Agreement No. AID-OAA-L-14-00003. The opinions expressed herein are those of the author(s) and do not necessarily reflect the views of the U.S. Agency for International Development. The authors would also like to acknowledge financial support for N Vilakati from the South African National Research Foundation and the University of Pretoria’s Institute for Food, Nutrition and Well-being.http://www.elsevier.com/locate/lwt2017-11-30hb2016Food ScienceHuman Nutritio

    Interaction of agriculture with food science

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    Meeting: Interdisciplinary Symposium, 22-24 Feb. 1974, Singapore, SGReport of proceedings on agricultural research being conducted in Asia, and its success in dealing with problems hindering agricultural development - discusses food production in Asia, the implications of food shortages; agricultural research programmes, genetic improvement of crops, plant breeding, cultivation systems; food processing techniques, quality control. Includes list of participants, recommendations, statistical data, bibliographic notes

    Biotechnology, Agriculture and Food Security in Southern Africa

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