Browsing by Author "Nyaruhucha, C."

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    Development and profiling of affordable and nutritionally optimal pigeon pea- based products for improved recipes diversification in rural communities in Tanzania
    (East African Journal of Science, Technology and Innovation, 2023) Majili, S. Z.; Nyaruhucha, C.; Kulwa, K.; Rybak, C.
    Pigeon pea is an affordable source of protein, vitamins and minerals. Despite its nutritional importance, the legume has not been adequately utilized for human consumption in Tanzania due to limited recipes. Therefore, the study aimed to develop and profile quantitative attributes of value-added pigeon pea-based noodles (PPBN) and instant porridge (PPIP) flour for diversification of recipes in rural Tanzania communities. The computation on the amount of ingredients, the cost of the product mix and optimization was done using Linear programming, simplex method. PPBN and PPIP were developed and Quantitative Descriptive Analysis (QDA) was done by trained panelists. Data were analysed using R and XLSTAT software. Eight and four samples of PPBN and PPIP respectively were formulated and developed. Major ingredients for PPBN was pigeon pea, wheat and orange flesh sweet potatoes flour and for PPIP was pigeon pea, maize, orange flesh sweet potatoes flour (or pumpkin flour). The protein content for PPBN ranged from 41.0 to 58.2 g. The highest amount of iron content was observed in sample PPBN193 (26.4 mg), followed by PPBN1718 (21.0 mg), PPBN267 (19.3 mg) and PPBN136 (18.3mg). The highest value of zinc and pro-vitamin A was observed in sample PPBN136. For instant porridge the highest value of protein (17.1 g), iron (7.9 g), zinc (5.4 mg) and pro-vitamin A (308.5 μg) was observed in sample PPIPofspr . The highest mean intensity score for colour, aroma and mouthfeel was observed in samples PPBN718, PPBN193 and PPBN136. For sample PPIPofspr , colour (8.7) Aroma (7.7), mouthfeel (7.8), sweetness (7.1) and viscosity (7.9) had the highest mean intensity score. There was a significant increase in protein, iron, zinc and pro- vitamin A with an increase in the amount of pigeon pea and/or orange flesh sweet potato flour. Sample PPBN718, PPBN193, PPBN136 and PPIPofspr had better nutritional and sensory qualities that make them suitable for consumption.
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    Preferences and consumption of pigeon peas among rural households as determinants for developing diversified products for sustainable health
    (Sustainability, 2020) Majili, Z. S.; Nyaruhucha, C.; Kulwa, K.; Mutabazi, K.; Rybak, C.; Sieber, S.
    Pigeon peas are legumes with a high nutritional value. Existing studies of pigeon peas in Tanzania mainly examine production and marketing, but little has been documented with respect to consumer preferences and the consumption of pigeon peas. This study assesses the preferences surrounding pigeon peas and their consumption as bases for the development of diversified and shelf-stable products for nutrition and income improvement. This study comprised 303 randomly selected farming households. Furthermore, 60 farmers participated in six focus group discussions in the Lindi region. A structured questionnaire and a checklist with guided questions were provided for data collection. The analysis uses SPSS (V.21), with di erences between groups established using Kruskal–Wallis and Mann–Whitney tests. The associations were tested using Spearman’s at p < 0.05. The mean pigeon peas consumption during the harvesting and lean seasons was 80 g/person/day and 18 g/person/day, respectively. The frequency of consumption was higher during the harvesting season (92%) than the lean (29%) season. The majority of farmers (91%) preferred to consume the local variety, with 84% of them consuming pigeon peas as stew. Five pigeon pea recipes exist in the area. The farmers identified availability, taste, source of income, and familiarity as the factors determining pigeon pea consumption and preferences. With limited recipes and other barriers limiting consumption, the creation of innovative ideas for the development of diversified and shelf-stable products fitting their consumption preferences is needed.