Sweet potato peel flour in hamburger: effect on physicochemical, technological and sensorial characteristics

• Published in: Brazilian Journal of Food Technology Vol. 23
• Main Authors: Allana Mariny Marconato, Giovanna Luiza Hartmann, Mirelly Marques Romeiro Santos, Luane Aparecida do Amaral, Gabriel Henrique Oliveira de Souza, Elisvânia Freitas dos Santos, Daiana Novello
• Format: Journal Article
• Language: English
• Published: Instituto de Tecnologia de Alimentos (ITAL) 2020
• Subjects: By-products; Fibers; Food reuse; Meat products; Nutrition; Tuber
• ISSN: 1981-6723
• DOI: 10.1590/1981-6723.11519

Abstract The aim of this research was to evaluate the influence of sweet potato peel flour (SPPF) on the physicochemical, technological and sensorial characteristics of bovine hamburger. Four hamburger formulations were prepared added SPPF: F1 (0%), F2 (0.75%), F3 (1.5%) and F4 (2.25%). The flour was characterized by high levels of minerals, carbohydrate and dietary fiber, which improved the nutritional profile of the hamburger. There was an increase in moisture retention and shrinkage, as well as a reduction in fat retention and cooking yield, as the level of SPPF addition increased. The addition of flour in the product significantly reduced (p < 0.05) the values of L*, a* and b*. Similar acceptability to the standard sample was checked for the hamburger with the addition of up to 1.5% SPPF. However, all formulations had an acceptability index greater than 70%. It is concluded that SPPF is a potential ingredient to be added in bovine hamburger, improving nutritional and technological parameters and with low influence on the sensorial characteristics.