Development and assessment of acceptability and nutritional propertiesof a light snack (original) (raw)
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The 2nd International Conference of Ia ValSe-Food Network, 2020
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Formulation of Corn-Based Snacks with High Nutritive Value: Biological and Sensory Evaluation
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Three composite flours were formulated by linear-programming using corn, chickpea, soybean-meal and methionine to meet the FAO/WHO pattern for lysine and sulfur amino acids. Fried snack foods were manufactured with these flours. The experimental products showed higher protein contents (18.11, 15.69, 13.16%) than a commercial corn snack used as control (7.14%). PER values of experimental snacks (2.69, 2.65, 2.54) were not statistically different from that of casein (2.77) (p>O.OS). Two of the formulated products (15.69% and 13.16% protein) showed no significant differences from the control with respect to typical odor and flavor, texture and acceptability (p>O.O5). These nutritionally-improved products represent a good alternative to commercially available corn-based snacks.
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In this study, an instant maize meal (IMM) was composited with baobab fruit powder (BFP) and commercial starch (CS) which was used as a binding agent. The formulation for the snack was optimised with response surface methodology using design expert software. Thirteen experimental runs were generated by the software and prepared into composite snacks. The snacks were baked using a pilot scale baking oven and microwave oven. The maize-baobab snacks were analysed for colour and texture using different probes (compression force, guillotine, v-shaped and puncture probe). The optimised snacks were evaluated for consumer acceptability and textural properties (instrumental). The results showed an increase in the hardness, fracturability, crunchiness and thickness as the instant maize meal and baobab concentrations increased in the formulation. The colour of the snacks was significantly affected as the concentration of baobab fruit powder and commercial starch increased in the formulation. However, significant correlations existed between sensory attributes and textural parameters in both baking methods except for puncture and aroma of oven-baked snacks.