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Acta Chemica Iasi

The Journal of "Alexandru Ioan Cuza" University from Iasi

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Study on the thermal behavior of casein in air

Costel Moldoveanu
  • Department of Chemistry, “Al.I. Cuza” University Iasi, 11 Carol I Bd, Iasi 700506, Romania
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
/ Lucia Odochian
  • Department of Chemistry, “Al.I. Cuza” University Iasi, 11 Carol I Bd, Iasi 700506, Romania
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
/ Cristina M. Paius
  • ”Gheorghe Asachi” University of Iasi, Faculty of Chemical Engineering and Environmental Protection, 73 D. Mangeron Bd, Iasi, Romania
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
/ Iancu Lorela / Adriana Baiceanu
Published Online: 2013-08-08 | DOI: https://doi.org/10.2478/achi-2013-0004


The present paper is focused on the study of the thermal behavior of casein, the main protein in milk, by applying the TG-FTIR technique and calorimetric measurements. The research is of a great interest due to the large application areas of casein in cosmetic, food and pharmaceutical industries. The analysis of the thermal behavior by the TG-DTG-DTA methods allwos the finding of the temperature range where the casein is thermally stable and the caseincontaining cosmetics, food and pharmaceutical products proper for using. The identification of the gaseous species released allwos the TG-FTIR coupled technique to give useful information on the possible environmental impact when the casein-containing products are used at temperatures above the casein initial degradation temperature. The combustion heat of casein estimated by means of the Berthelot calorimeter made evident this value to be close to those of the most important and used fuels which would recommend the waste casein-containing products to be used as fuels.

Keywords: Casein; TG-FTIR; DSC; Berthelot calorimeter; Combustion heat; Degradation mechanism

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About the article

Published Online: 2013-08-08

Published in Print: 2013-05-01

Citation Information: Acta Chemica Iasi, Volume 21, Issue 1, Pages 31–46, ISSN (Online) 2067-2446, DOI: https://doi.org/10.2478/achi-2013-0004.

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