Acceptability, Nutritional Quality and Contribution of Vegetable-Enriched Products to Nutrient and Energy Requirements of School Children Aged 5 to 13 Years

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DOI: 10.4236/fns.2017.82016    346 Downloads   456 Views  

ABSTRACT

Micronutrient deficiency (MD) is a problem among schoolchildren which, in addition to other effects, also affects their intellectual abilities. Inclusion of vegetables to food formulations can help to reduce MD because they contain vital micronutrients which are required for improved school performance. This study aimed at evaluating acceptability, determining the nutritional quality and estimating the contribution of vegetable enriched products to the Recommended Dietary Allowance (RDA) of schoolchildren (5 to 13 years). The vegetables used were red and green amaranth leaves, orange fleshed sweet potato and pumpkin. Selection of vegetables was based on richness in micronutrients; local availability and consumption levels in Uganda; and their underutilization status particularly in processed form. Each of the vegetables was preprocessed and incorporated separately into soybean and grain amaranth in the ratio of 10:40:50, respectively, to improve the nutrient and energy density of the formulations. Sensory screening of formulations in a range of products (porridges, soups and snacks) revealed that orange fleshed sweet potato formulation was most preferred for porridge as well as for snacks (at 30:70 ratio of orange fleshed sweet potato composite to wheat flour); while red amaranth leaves composite was most preferred for soup. When tested for acceptability, nutritional quality, as well as contribution to the RDA (for vitamin A, iron, zinc, protein and energy) for schoolchildren 5 to 13 years, acceptability tests and nutritional quality of food products from the formulations were highly rated compared to commercial products (pure maize porridge, wheat based soup and 100% refined wheat flour snacks). All products from the two formulations contributed favourably to vitamin A, iron, zinc and protein requirements of children (5 to 13 years). Based on these findings, orange fleshed sweet potato composite flour can be recommended for making porridge, and can substitute (30%) for wheat flour in making snacks; while red amaranth leaf composite flour can be recommended for making soups.

Cite this paper

Philomena Onwuamaeze, N. , Hedwig, A. and Dorothy, N. (2017) Acceptability, Nutritional Quality and Contribution of Vegetable-Enriched Products to Nutrient and Energy Requirements of School Children Aged 5 to 13 Years. Food and Nutrition Sciences, 8, 242-266. doi: 10.4236/fns.2017.82016.

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