Department of Food Process and Post Harvest Technology

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Browsing Department of Food Process and Post Harvest Technology by Author "Muggaga, Christopher"

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    Dietary intake and socio-economic predictors of inadequate energy and nutrient intake among women of childbearing age in Karamoja sub-region of Uganda
    (Journal of Health, Population and Nutrition, 2023) Muggaga, Christopher; Okello‑Uma, Ipolto; Natigo, Archileo Kaaya; Taylor, David; Ongeng, Duncan; Basil, Mugonola
    Karamoja sub-region is the most food insecure part of Eastern Africa. The poor status of food security in the sub-region is reflected in the high rate of undernutrition among women of childbearing age (WCBA) and children under 5 years (CUFY). The sub-region is unique in Uganda in terms of cultural diversity, agro-ecology and rainfall pattern and agricultural practices. However, the influence of these unique characteristics on dietary intake of WCBA in the sub-region is less understood. Therefore, this study examined dietary intake and socio-economic predictors of inadequate energy and nutrient intake among WCBA in Karamoja sub-region.
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    The effect of traditional malting technology practiced by an ethnic community in northern Uganda on in-vitro nutrient bioavailability and consumer sensory preference for locally formulated complementary food formulae
    (Food Science and Nutrition, 2018-10) Alowo, Docus; Muggaga, Christopher; Ongeng, Duncan
    The occurrence of anti-nutritional constituents in plants is an important factor that negatively affects bioavailability of nutrients and effectiveness of plant-based foods in complementary feeding in rural areas in developing countries. However, proven methods that improve bioavailability of nutrients and tailored for application in processing complementary foods among rural communities are largely lacking. This study examined the efficacy of a traditional malting technology practiced by the Acholi ethnic community of northern Uganda to improve protein digestibility and bioavailability of iron and zinc from millet–sesame–soy composite containing 200, 300, and 550 kcal meant for complementary feeding of children aged 6–8, 9–12, and 13–23 years old, respectively. The technology involves washing and soaking of ingredients for 12 hr; malting ingredients individually for 48 hr with water changed after every 6 hr; and sun-drying malted ingredients for 72 hr. Results showed that the level of anti-nutritional factors significantly reduced (p ≤ 0.05) in all the composite formulae except the content of total phenolics in 200, tannins in 300 and 550 kcal, composite formula, respectively. In vitro protein digestibility significantly improved (p ≤ 0.05) in all the composite formulae except in the 200 kcal formula. Iron bioavailability significantly increased (p ≤ 0.05) in all the composite formulae except in the 550 kcal energy category. Improvement in zinc bioavailability was only observed in the 300 kcal formula. However, there were significant reductions (p ≤ 0.05) in the level of caregiver preferences for sensory properties and overall acceptability of the composites. These results demonstrate that the traditional malting technology has potential to improve nutrient bioavailability in plant-based foods but requires improvement in order to increase its efficacy and mitigate negative effects on sensory appeal.
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    The influence of sugarcane growing by smallholder farmers on household livelihood, food security, and nutrition status of children below five years in mid-western Uganda
    (Journal of Agriculture and Food Research, 2023-11-23) Oyet, Sunday Mark; Muggaga, Christopher; Okello-Uma, Ipolto; Mbabazi, Kaahwa Robert
    The current study aimed at determining the influence of sugarcane production on livelihoods, food security and nutrition status. A cross-sectional study was carried out among 350 smallholder farmers in mid-western Uganda. Food security was assessed by Household Food Insecurity Access Scale (HFIAS) while household livelihood and nutrition status of children below five (5) years were assessed by a semi-structured questionnaire and anthropometry respectively. Results showed that sugarcane growing households (SCG) cultivated more acreage of food, owned more assets, earned more income than the non-sugarcane growing households (NSCG). Ownership of motorcycles was higher (p < 0.05) among SCG than NSCG. Households reported anxiety and uncertainty of having food in the previous four weeks (SCG 38%; NSCG 55.2%); had insufficient food quality (SCG 56.8%; NSCG 70.7%); and had insufficient food quantity (SCG 41.7%; NSCG 49.2%). SCG were more food secure (32.3%) than the NSCG (20.8%) (p < 0.05) with a corresponding mean HFIAS of 6.56 ± 6.69 and 8.41 ± 6.41, respectively. Stunting among children below five years among NSCG was higher (34.6%) than in SCG (21.3%). Among SCG, 7.3% and 5.2% of children were underweight and wasted while 6.06% and 2.7% were underweight and wasted from NSCG. This demonstrated that sugarcane growing had better livelihood outcomes, positively impacted on asset ownership and food security but mixed effect on nutrition indicators among children in sugarcane growing and non-sugarcane growing households. It is recommended that government and development agencies diversify livelihoods among the NSCG and reinforce the existing livelihoods among SCG; provide nutrition education to both SCG and NSCG for improved food security and nutrition outcomes. Authors suggest further studies using a mixed approach to assess the levels of household nutrient intake in sugarcane growing areas.
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    Recommended daily allowance-based contribution of household’s own agricultural production to food and nutrition security in Karamoja sub-region of Uganda
    (Agriculture & Food Security, 2022-01-15) Muggaga, Christopher; Basil, Mugonola; Okello‑Uma, Ipolto; Kaaya, Archileo Natigo; Taylor, David; Ongeng, Duncan
    Background: In Uganda, agriculture is the main pathway for dietary intake among the households. Karamoja sub region, located in Northeastern part of Uganda is the most food insecure in the country. Although agriculture contrib‑ utes greatly to Uganda’s food systems, there is inadequate evidence for household energy and nutrient intake from agricultural production in the sub-region. Karamoja sub-region is typical because crop production has increasingly become part of the agricultural system in a largely semi-arid environment, predominantly occupied in pastoralism. Therefore, a cross-sectional study of 520 participants investigated the contribution of household’s own agricultural production to dietary intake, seeking to answer whether or not own agricultural production translates into adequate energy and nutrient intake. Results: Own food production did not meet energy and nutrient requirements, contributed disproportionately among the districts to household cumulated annual RDAs. This was refected in the higher proportion of house‑ holds in Moroto not attaining the cumulative annual RDA (energy: 100.0; protein 100.0; iron 86.5; and zinc 100.0%) than in Abim (energy: 81.6; protein 53.3; iron 23.7; and zinc 59.9%). Overall in Karamoja sub-region, the total energy and nutrients required by the household and supplied from their agricultural production were 15,589.7±10,230.6 and 4226.0±3980.1 kcal/day for energy, 317.6±202.6 and 154.4±153.7 g/day for proteins, 49.5±30.8 and 50.2±47.6 mg/day for iron, and 52.7±32.6 and 25.4±24.5 mg/day for zinc. Inter-household distribution of the absolute diference between energy and selected nutrients required by the household and that derived from own agricultural production showed defcits in household energy and nutrients needs. Further, polygamy, subsistence farming by spouse, lack of formal education by spouse positively predicted energy and nutrient supplied from own agricultural produce while lack of formal education negatively predicted energy nutrients supplied from agricultural produce. Increase in household size increased energy and nutrient required from agricultural production. Conclusion: Own agricultural production contributes limitedly to household energy and nutrient needs in the sub region. There are great variations in the households’ capacity to derive energy and nutrients from own agriculture
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    Recommended Daily Allowance-Based Contribution of Household’s Own Agricultural Production to Food and Nutrition Security in Karamoja Sub-region of Uganda.
    (Agriculture & Food Security, 2021-07-27) Muggaga, Christopher; Mugonola, Basil; Okello‑Uma, Ipolto; Natigo, Archileo Kaaya; Taylor, David; Ongeng, Duncan
    Background: In Uganda, agriculture is the main pathway for dietary intake among the households. Karamoja sub region, located in Northeastern part of Uganda is the most food insecure in the country. Although agriculture contrib‑ utes greatly to Uganda’s food systems, there is inadequate evidence for household energy and nutrient intake from agricultural production in the sub-region. Karamoja sub-region is typical because crop production has increasingly become part of the agricultural system in a largely semi-arid environment, predominantly occupied in pastoralism. Therefore, a cross-sectional study of 520 participants investigated the contribution of household’s own agricultural production to dietary intake, seeking to answer whether or not own agricultural production translates into adequate energy and nutrient intake. Results: Own food production did not meet energy and nutrient requirements, contributed disproportionately among the districts to household cumulated annual RDAs. This was refected in the higher proportion of house‑ holds in Moroto not attaining the cumulative annual RDA (energy: 100.0; protein 100.0; iron 86.5; and zinc 100.0%) than in Abim (energy: 81.6; protein 53.3; iron 23.7; and zinc 59.9%). Overall in Karamoja sub-region, the total energy and nutrients required by the household and supplied from their agricultural production were 15,589.7±10,230.6 and 4226.0±3980.1 kcal/day for energy, 317.6±202.6 and 154.4±153.7 g/day for proteins, 49.5±30.8 and 50.2±47.6 mg/day for iron, and 52.7±32.6 and 25.4±24.5 mg/day for zinc. Inter-household distribution of the absolute diference between energy and selected nutrients required by the household and that derived from own agricultural production showed defcits in household energy and nutrients needs. Further, polygamy, subsistence farming by spouse, lack of formal education by spouse positively predicted energy and nutrient supplied from own agricultural produce while lack of formal education negatively predicted energy nutrients supplied from agricultural produce. Increase in household size increased energy and nutrient required from agricultural production. Conclusion: Own agricultural production contributes limitedly to household energy and nutrient needs in the sub region. There are great variations in the households’ capacity to derive energy and nutrients from own agricultural produce in Karamoja sub-region. Polygamy, subsistence farming, education and household size predicted energy and nutrients required from and supplied by agricultural production.
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    Traditional vegetable preservation technologies practiced in Acholi subregion of Uganda improves mineral bioavailability but impacts negatively on the contribution of vegetables to household needs for micronutrients
    (Food Science & Nutrition published by Wiley Periodicals LLC., 2021) Bighaghire, Raymond; Okidi, Lawrence; Muggaga, Christopher; Ongeng, Duncan
    The impact of traditional African preservation methods on the contribution of vegetables to household micronutrient needs (Recommended Dietary Allowance: RDA) has largely remained unquantified. Using Acholi subregion of Uganda as a case area, this study examined using the predominant vegetables consumed in fresh and preserved forms (cowpeas-Vigna unguicullata, okra/lady fingers-Abelmoschus esculentus, Malakwang-Hibscus cannabinus, and eggplants-Solanum melongena), the effect of major traditional vegetable preservation methods (sun drying, boiling and sun drying, and salting and sun drying) on the contents of micronutrients (vitamin A, iron, zinc, calcium, magnesium, and phosphorus), the levels of antinutritional factors (total polyphenols, oxalate, tannins, and phytate), bioavailability of iron and zinc, and the contribution of vegetables to the cumulative annual household RDA for micronutrients. Laboratory analysis showed that all the preservation methods, except the sun drying method reduced the contents of micronutrients by 20%-82% (p ≤ .05). The contents of antinutritional factors reduced by 1%-80% while in vitro bioavailability of iron and zinc increased by 21%-296% (p ≤ .05). Nutritional computation revealed that except for calcium, the preservation methods combined, reduced the contribution of the vegetables to cumulative annual RDA for other micronutrients by 28%-60%. These results demonstrate that improvements in bioavailability of essential nutrients (iron and zinc) by traditional preservation methods investigated are associated with significant loss of micronutrients which culminates in significant reduction in the contribution of cultivated vegetables to household RDA for micronutrients. Traditional African preservation methods should be optimized for nutrient retention.