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Statistical evaluation of different technological and rheological tests of Polish wheat varieties for bread volume prediction
Author(s) -
Konopka Iwona,
Fornal Łucja,
Abramczyk Danuta,
Rothkaehl Jadwiga,
Rotkiewicz Daniela
Publication year - 2004
Publication title -
international journal of food science and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.831
H-Index - 96
eISSN - 1365-2621
pISSN - 0950-5423
DOI - 10.1111/j.1365-2621.2004.00741.x
Subject(s) - farinograph , rheology , absorption of water , wheat flour , falling number , extrusion , volume (thermodynamics) , mathematics , food science , viscosity , materials science , composite material , chemistry , thermodynamics , physics
Summary Forty‐two Polish wheat flour were used to establish correlation coefficients between protein content, Zeleny test, falling number value, amylograph viscosity, farinograph water absorption, bread volume and rheological properties of dough, as shown by use of a extrusion chamber and alveograph. The equations expressing the changes of bread volume and flour water absorption as a function of significantly correlated parameters were calculated. The correlations and their significance depended on wheat quality and the alveographic parameters were significantly correlated with the dough extrusion parameters. The dough extrusion parameters were significantly correlated only with the water absorption of soft wheats. The dough rheological tests were correlated to a greater extent with the values of the Zeleny test than to the protein content. The prediction of the bread volume as a function of flour quality parameters and dough rheological properties was best done by grouping wheat varieties into specific qualitative classes.