Searching the best equilibrium moisture equation for lettuce seeds using measures of curvature and bias

Authors

  • Carolina T. Bortolotti,

    1. Chemical Engineering School, Federal University of Uberlândia, Uberlândia, Minas Gerais, Brazil
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  • Marcos A. S. Barrozo

    Corresponding author
    1. Chemical Engineering School, Federal University of Uberlândia, Uberlândia, Minas Gerais, Brazil
    • Correspondence

      Marcos A. S. Barrozo, Chemical Engineering School, Federal University of Uberlândia, Block 1K, Campus Santa Mônica, Uberlândia, Minas Gerais 38400-902, Brazil. Tel: +(55)(34) 3239-4189; Fax: +(55)(34) 3239-4188; E-mail: masbarrozo@ufu.br

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Abstract

In the present work, we performed a discrimination analysis of the nonlinear equations used to describe sorption isotherms of the lettuce seeds. The equilibrium data were obtained by the static method using saturated salt solutions. The best model to describe the equilibrium moisture of lettuce seeds was selected using measures of curvature and bias. The obtained results showed that the Copace equation was the best model in terms of nonsignificance for bias and nonlinearity measures.

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