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Type: Artigo de periódico
Title: Estudo calorimétrico da interação de álcoois com Saccharomyces cerevisiae a 298 K
Title Alternative: Calorimetric study on the interaction of alcohols with Saccharomyces cerevisiae (Sc)
Author: Silva Filho, Eloi A.
Volpe, Pedro L. O.
Abstract: The calorimetric experiments based on technique breaking ampoule were carried out by measuring of the heat of solution of alcohol in isotonic solution (NaCl 0.10 M) and alcohol in suspension of Sc at 298 K. From these data the enthalpy of interaction alcohol with suspension of Sc (DtrsH°) was calculate by Hess law. In this study, the results indicate that the enthalpy of interaction of aliphatic alcohol (C2-C8) with suspensions of Sc is a process exothermic and becomes more exothermic with increasing of -CH2 group of alcohol in range -1,14 to -4,0 kJ.mol-1. We concluded that enthalpy of interaction shows a linear relationship with increasing of alcohol's lipophilicity, in agreement with Traube's rule.
Subject: calorimetry
saccharomyces cerevisiae
Editor: Sociedade Brasileira de Química
Citation: Química Nova. Sociedade Brasileira de Química, v. 22, n. 3, p. 309-311, 1999.
Rights: aberto
Identifier DOI: 10.1590/S0100-40421999000300003
Date Issue: 1-Jun-1999
Appears in Collections:Unicamp - Artigos e Outros Documentos

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