Work

A New Kinetic Model for Pectin Extraction from Grapefruit Peel Using Delayed Differential Equations

Year: 2025

Type: article

Abstract: The objective of this study is to develop a kinetic model that incorporates time-delay mechanisms to describe the gradual release behavior of pectin. Three models were used: modified Peleg, logistic, and second-order linear with time delay (SOPDT), to represent the extraction kinetics of grapefruit peels at 60, 70, and 90 °C. Model fitting was performed using a hybrid methodology combining Monte Carlo simulations with genetic algorithms. The SOPDT model provided the best fit, with the lowest squared error values (J = 7.06 at 60 °C, 5.63 at 70 °C, and 8.71 at 90 °C), requiring only two parameters to represent the entire process. In contrast, the other models required six. The maximum pectin yield reached over 120% at 90 °C, compared to <80% at lower temperatures. These results demonstrate the potential of the SOPDT model for efficient process description and control.

Source: Processes

DOI: 10.3390/pr13061903

Authors: María L. Montoro, María N. Pantano, María C. Fernández, María F. Sardella, Andres Rosales, Gustavo Scaglia

Institutions: Consejo Nacional de Investigaciones Científicas y Técnicas, National University of San Juan, Universidad Yachay Tech, National Polytechnic School

Language: English

Topic: Polysaccharides Composition and Applications

Subfield: Food Science

Field: Agricultural and Biological Sciences

Domain: Life Sciences

SDG: Responsible consumption and production

Open Access status: gold

Estimated APC paid: $2,896