Abstract
Wheat starch suspensions (5% DM) were subjected to pressure (0.1 to 600 MPa) and/or temperature (-20 to 96 °C) during 15 min. Swelling index (s.i.) depended on starch hydration as a function of pressure or temperature level. p-T treatment improved starch hydration for low and high temperatures at the same pressure level. p-T denaturing conditions were found using DSC and loss of birefringence by the granules. The p-T phase diagram of starch was found to correspond to a pseudo ellipsoid curve. A 3D phase diagram of starch was proposed including pressure, temperature and initial moisture content.
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References
A.H. Muhr and J.M.V. Blanshard, 1982, Carboh. Polym, 2, 61–74.
J.P. Douzals, P.A. Marechal, P. Gervais and J.C. Coquille, 1996, J. Agric. Food Chem, 44, 1403–1408.
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© 1999 Springer-Verlag Berlin Heidelberg
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Douzals, J.P., Perrier-Cornet, J.M., Gervais, P., Coquille, J.C. (1999). Hydration and Pressure-Temperature Phase Diagrams of Wheat Starch. In: Ludwig, H. (eds) Advances in High Pressure Bioscience and Biotechnology. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-60196-5_74
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DOI: https://doi.org/10.1007/978-3-642-60196-5_74
Publisher Name: Springer, Berlin, Heidelberg
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