Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Fits of Models and Thermodynamic Properties in Drying of Mass of Jambu Leaves

Version 1 : Received: 31 July 2022 / Approved: 8 August 2022 / Online: 8 August 2022 (10:50:42 CEST)

A peer-reviewed article of this Preprint also exists.

Gomes, F.P.; Resende, O.; Sousa, E.P.; Célia, J.A.; de Oliveira, K.B. Application of Mathematical Models and Thermodynamic Properties in the Drying of Jambu Leaves. Agriculture 2022, 12, 1252. Gomes, F.P.; Resende, O.; Sousa, E.P.; Célia, J.A.; de Oliveira, K.B. Application of Mathematical Models and Thermodynamic Properties in the Drying of Jambu Leaves. Agriculture 2022, 12, 1252.

Journal reference: Agriculture 2022, 12, 1252
DOI: 10.3390/agriculture12081252

Abstract

The objective of this study was to evaluate the drying kinetics of the mass of jambu leaves and mass of jambu leaves in foam mat at different temperatures (50, 60 and 70 °C and thickness of 1.0 cm). The physicochemical characterization of the materials was performed before and after drying. Twelve different drying models were fitted to the drying kinetics data and the thermodynamic properties were calculated. The physicochemical parameters for the mass of leaves and foam after drying were moisture content from 2 to 7%, ash from 13 to 17%, protein content from 22 to 30%, lipids from 0.6 to 4% and total titratable acidity from 0.20 to 0.28% of tartaric acid. Wang & Singh and Midilli models were recommended for describing the drying kinetics. The use of foam mat promoted higher values of effective diffusion coefficient and activation energy and lower values of enthalpy and entropy, thus enhancing the reduction of drying time.

Keywords

Acmella oleracea; Tapete de Espuma; Cinética de Secagem

Subject

ENGINEERING, Other

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