Fat Reduction in Peruvian Carrot (Arracacia xanthorrhiza) Snacks: Effectiveness of Edible Coatings and Optimization of Frying Conditions

Peruvian carrot is a root with a pleasant taste but a short shelf life. Developing Peruvian carrot snacks with appealing sensory characteristics, a crunchy texture, and reduced lipid content aligns with modern consumer demands and represents an innovative approach to food diversification. To ensure product quality, snacks must have a low water content to prevent microbial growth and maintain crispness. Therefore, optimizing process variables through pre-treatments is essential to achieving the desired characteristics. This study aimed to evaluate the influence of frying conditions on the water content, lipid absorption, and sensory acceptance of Peruvian carrot snacks. The preparation process involved sanitizing and slicing the roots, air-drying them at room temperature, and frying them according to an experimental design. The optimal frying conditions were 160 °C for 18 s and 174 °C for 30 s. Three different treatments were tested: two with edible coatings made from Peruvian carrot starch at concentrations of 3:20 and 5:10 (starch %/glycerol %) and one control sample without a coating. Sensory evaluation showed significant differences between coated and uncoated snacks, with all samples receiving high consumer acceptance. Notably, coated snacks exhibited a 50% reduction in lipid absorption compared to the control while also retaining a lower water content, key factors in maintaining texture, preserving quality, and extending shelf life. Furthermore, the application of edible coatings proved effective in reducing the caloric content of the snacks, making them a healthier alternative.