Bibliographic citations
Vilcapoma, W., (2023). Optimización del rendimiento de extracción de fibra dietética asistida por ultrasonido intermitente en cáscara de pitahaya (Hylocereus megalanthus) [Universidad Nacional Agraria La Molina]. https://hdl.handle.net/20.500.12996/6162
Vilcapoma, W., Optimización del rendimiento de extracción de fibra dietética asistida por ultrasonido intermitente en cáscara de pitahaya (Hylocereus megalanthus) []. PE: Universidad Nacional Agraria La Molina; 2023. https://hdl.handle.net/20.500.12996/6162
@mastersthesis{renati/499474,
title = "Optimización del rendimiento de extracción de fibra dietética asistida por ultrasonido intermitente en cáscara de pitahaya (Hylocereus megalanthus)",
author = "Vilcapoma Quispe, Wilber",
publisher = "Universidad Nacional Agraria La Molina",
year = "2023"
}
Faced with environmental challenges associated with the use of solvents in traditional methods of dietary fiber extraction and the management of agro-industrial waste, such as pitahaya peel, a strategy has been devised with the aim of optimizing the performance of intermittent ultrasound-assisted dietary fiber extraction in pitahaya peel (Hylocereus megalanthus). The aim is to recover valuable components for the food industry with reduced environmental impact. This process consists of multiple stages. Firstly, it was determined that the optimal drying temperature is 55 °C, based on efficient drying time (6.10 hours) and lighter color parameters (L* = 74.6; a* = 3.79; b* = 27.9) obtained using a tray dryer at three temperatures (40, 55, and 70 °C) and an air flow rate of 0.5 m/s. The second stage involved optimizing the parameters for soluble and insoluble fiber extraction, as well as evaluating the degree of pectin esterification, a major component of soluble fiber, using the Box-Behnken response surface method with a quadratic model. In the third and fourth stages, validation and characterization of techno-functional properties of the optimized product were carried out, including water holding capacity (11.0), oil holding capacity (5.00), swelling capacity (4.86), and color (L* = 79.0; a* = 1.20; b* = 18.8), especially in comparison to insoluble fiber. Validation results demonstrated that predicted values were statistically similar to experimental values, validating the effectiveness of the optimized process. Altogether, this study provides a sustainable solution for dietary fiber extraction from dragon fruit peel, emphasizing process optimization and product functionality for the food industry.
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