Chemical, physical and sensory attributes of noodles with added sweetpotato and soy flour

Noodles were prepared with sweetpotato flour or puree and defatted soy flour (DSF) added to all-purpose wheat flour. These ingredients provided beta-carotene for vitamin A and protein. Test samples were compared with control noodles. Combinations of sweetpotato and DSF increased protein, ash and total dietary fiber and decreased fat and carbohydrates. Sweetpotato contributed orange color and beta-carotene, while DSF reduced lightness and added no beta-carotene. Both ingredients increased cooking loss - 10.4% from sweetpotato to 12.0% from sweetpotato and DSF combinations. Sweetpotato increased color acceptability with no change in flavor or overall acceptabilities. Sweetpotato decreased stickiness and DSF had no effect on acceptability.