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Imaging of the Fermentation Process of Bread Dough and the Grain Structure of Baked Breads by Magnetic Resonance Imaging
Author(s) -
Takano H.,
Ishida N.,
Koizumi M.,
Kano H.
Publication year - 2002
Publication title -
journal of food science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.772
H-Index - 150
eISSN - 1750-3841
pISSN - 0022-1147
DOI - 10.1111/j.1365-2621.2002.tb11392.x
Subject(s) - gluten , materials science , fermentation , punching , food science , composite material , chemistry
Fermentation processes of bread doughs were traced by MRI (magnetic resonance imaging), which suggests that punching and rounding treatment after the first fermentation promotes the development of elasticity and extensibility of gluten fibrils that makes thin grain walls of the pores connecting between adjacent pores with small holes, and a thin smooth crust after baking. While pore generation was small, expansion of the dough was low, gluten networks formed were large and coarse, and gluten fibrils were undeveloped in the frozen dough. Prefermentation could not essentially alleviate the inferior properties of the frozen dough. The grain structures of the bread using frozen dough were characterized by thick network walls without the connection between pores and a thick crust with rough surface.