Browsing by Author "Olum, Solomon"

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    Addition of Orange-Fleshed Sweet Potato and Iron-Rich Beans Improves Sensory, Nutritional and Physical Properties But Reduces Microbial Shelf Life of Cassava-Based Pancake (Kabalagala) Designed for Children 2-5 Years Old
    (Taylor & Francis, 2021-04-25) Adoko, Melas Cayrol; Olum, Solomon; Elolu, Samuel; Ongeng, Duncan
    Innovative use of locally available food resources to develop products of enhanced nutritional quality is one of the strategies believed to alleviate deficiencies of essential micronutrients such as vitamin A and iron are endemic among children 2–5 years in developing countries such as Uganda. New cassava-based pancake (kabalagala) formulae composed of orange-fleshed sweet potato, iron-rich beans, cassava, and sweet banana were developed to target the vitamin A and iron needs of children 2–5 years in Uganda. The new products had better sensory appeal and nutrient density had better physical properties during storage, and were stable to oxidative rancidity but had lower microbial shelf-life compared to the original pancake formula (composed of cassava and sweet banana). Notwithstanding bioavailability constraints, theoretical nutritional computation revealed that serving 100 g (approximately four pieces) of the new products would contribute approximately 99–102% of vitamin A and 110–119% of the iron requirements of the targeted children.
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    Iodine Agronomic Biofortification of Cabbage (Brassica oleracea var. capitata) and Cowpea (Vigna unguiculata L.) Is Effective under Farmer Field Conditions
    (Agronomy MDPI, 2019-11-23) Ojok, Joe; Omara, Peter; Opolot, Emmanuel; Odongo, Walter; Olum, Solomon; Gijs, Du Laing; Gellynck, Xavier; De Steur, Hans; Ongeng, Duncan
    Abstract: Iodine (I) is an essential micronutrient, which plays a critical role in human metabolism. However, its concentration is known to be low in most soils, making it deficient in crops. With most I agronomic biofortification studies conducted under controlled environments, limited information currently exists on this approach of enriching I deficient crops under farmer field conditions. Two-year field experiments were conducted in 2017 and 2018 to examine efficacy of cowpea and cabbage in the uptake of foliar applied potassium iodide (KI) and potassium iodate (KIO3), each with 0, 5, 10, and 15 kg I ha−1 under farmer field conditions. Results indicate that KI was 34% more efficient than KIO3. Iodine concentration increased with application rate. In cabbage, the lowest I concentration (8.2 mg kg−1 ) was registered at 5 kg I ha−1 with KIO3 while the highest was 109.1 mg kg−1 at 15 kg I ha−1 with KI. Cowpea registered the lowest I concentration of 531.5 mg kg−1 at 5 kg I ha−1 with KIO3 while the highest (5854.2 mg kg−1 ) was registered at 15 kg I ha−1 with KI. Therefore, cowpea and cabbage can be effectively biofortified through foliar application of both KI and KIO3 under farmer field conditions.