Desorption isotherms of in natura leaves of Ziziphus joazeiro Mart. and Bauhinia cheilantha

Authors

  • Francinalva Cordeiro de Sousa Universidade Federal de Campina Grande (UFCG), Centro de Tecnologia e Recursos Naturais, Campina Grande, PB, Brasil.
  • Ana Paula Trindade Rocha Universidade Federal de Campina Grande (UFCG), Centro de Tecnologia e Recursos Naturais, Campina Grande, PB, Brasil.
  • Josivanda Palmeira Gomes Universidade Federal de Campina Grande (UFCG), Centro de Tecnologia e Recursos Naturais, Campina Grande, PB, Brasil.
  • Jorge Jacó Alves Martins Universidade Federal de Campina Grande (UFCG), Centro de Tecnologia e Recursos Naturais, Campina Grande, PB, Brasil.
  • Joabis Nobre Martins Universidade Federal de Campina Grande (UFCG), Centro de Tecnologia e Recursos Naturais, Campina Grande, PB, Brasil.

Keywords:

Ziziphus joazeiro Mart., Bauhinia cheilantha, medicinal plants, mathematical modeling.

Abstract

The Brazilian culture has a great appreciation for the use of medicinal plants for curing diseases. The drying process is very important to assure the quality and stability of these species. This study aimed at obtaining the desorption isotherms of in natura leaves of Ziziphus joazeiro Mart. and Bauhinia cheilantha and adjust the experimental data to different mathematical models. The isotherms were obtained at three temperatures (20ºC, 30ºC and 40ºC), under desorption conditions, and the experimental data adjusted to three models (GAB, Oswin and Peleg) by non-linear regression. The coefficient of determination and the mean percentage deviation between the experimental ??and predicted values ??were calculated for each curve, in order to evaluate the best-fit model. According to the statistical parameters of analysis, the Peleg model was the one that better described the hygroscopicity of in natura leaves of Ziziphus joazeiro Mart. and Bauhinia cheilantha.

Downloads

Download data is not yet available.

Downloads

Published

2014-09-22

How to Cite

SOUSA, F. C. de; ROCHA, A. P. T.; GOMES, J. P.; MARTINS, J. J. A.; MARTINS, J. N. Desorption isotherms of in natura leaves of Ziziphus joazeiro Mart. and Bauhinia cheilantha. Pesquisa Agropecuária Tropical [Agricultural Research in the Tropics], Goiânia, v. 44, n. 3, p. 304–310, 2014. Disponível em: https://revistas.ufg.br/pat/article/view/26374. Acesso em: 21 dec. 2024.

Issue

v. 44, n. 3, Jul./Sep. 2014

Section

Biosystems Engineering

License

Authors will not be paid for published articles and must waive their copyright in favor of the PAT journal. On the other hand, they are solely responsible for the content of those articles, even if the Editor holds the right to adjust them to the norms of the journal. Authors are allowed to publish their articles simultaneously in their institutional repositories, as soon as the original publication at the PAT journal is mentioned.