Abstract
Baked products with various expanded structures were obtained by changes in process conditions and formulation. A device was set up to measure their gas permeability coefficient, k (from 10−12 to 3.6.10−10 m2) and then relate it to their structural features. The device consists of an hermetic cell connected to gas flow rate sensor and allows for modification of the sample density through compression. For a laminar air flow, k is determined by the measurement of the differential pressure, according to Darcy’s law. Gas permeability on uncompressed and in situ compressed crumbs, with apparent density ρ* varying from 0.20 to 0.50 g/cm3, were found to depend on their porosity ɛ following the Carman–Kozeny’s model. However, the deviation from theoretical values can not be explained by a simple model based on the tortuosity. Results highlighted the role of the expanded structure, mainly pore size and shape. This device may be used to measure these important properties that influence mass transfer in aerated foods and complement the characterization of their structure.
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References
B.R. Bird, W.E. Stewart, E.N. Lightfoot, Transport Phenomena (Wiley, New York, USA, 1960)
F.A.L. Dullien, Porous Media—Fluid Transport and Pore Structure (Academic, New York, USA, 1979)
S. Mauran, L. Rigaud, O. Coudevylle, Application of the Carman–Kozeny correlation to a high-porosity and anisotropic consolidated medium: the compressed expanded natural graphite Transp. Porous Media 43(2), 355–376 (2001)
S. Biloé, S. Mauran, Gas flow through highly porous graphite matrices Carbon 41, 525–537 (2003)
P. Lillford, Structure and failure in aerated cakes. Personal Communication (1985)
M.G. Scanlon, M.C. Zghal, Bread properties and crumb structure Food Res. Int. 34(10), 841–864 (2001)
J. Rouillé, G. Della Valle, M.F. Devaux, D. Marion, L. Dubreil, French bread loaf volume variations and digital image analysis of crumb grain changes induced by the minor components of wheat flour Cereal Chem. 82(1), 20–27 (2005)
K.S. Lim, M. Barigou, X-ray micro-computed tomography of cellular food products Food Res. Int. 37, 1001–1012 (2004)
M. Lostie, R. Peczalski, J. Andrieu, M. Laurent, Study of sponge cake batter baking process. II. Modelling and parameter estimation J. Food Eng. 55, 349–357 (2002)
D.L. Goedeken, C.H. Tong, Permeability measurements of porous food materials J. Food Sci. 58, 1329–1131 (1993)
P. Babin, G. Della Valle, R. Dendievel, N. Lassoued, L. Salvo, Mechanical properties of bread crumbs from tomography based finite elements simulations J. Mater. Sci. 40(22), 5867–5873 (2005)
P.M. Falcone, A. Baiano, F. Zanini, L. Mancini, G. Tromba, D. Dreossi, F. Montanari, N. Scuor, M. Del Nobile, 3D quantitative analysis of bread crumb by X-ray tomography J. Food Sci. 70, 265–272 (2005)
N. Lassoued, P. Babin, G. Della Valle, M.-F. Devaux, A.-L. Réguerre, Granulometry of bread crumb grain: contributions of 2D and 3D image analysis at different scale Food Res. Int. 40, 1087–1097 (2007)
A. Sommier, H. Chiron, P. Colonna, G. Della Valle, J. Rouillé. An instrumented pilot scale oven for the study of French bread baking J. Food Eng. 69, 97–106 (2005)
P. Roussel, H. Chiron, Les Pains Français, Évolution, Qualité, Production (MAE-Erti, Vesoul, 2002)
G. Matheron, Eléments pour une théorie des milieux poreux (Masson, Paris, 1967)
J. Serra, Image Analysis and Mathematical Morphology (Academic, New York, 1982)
D. Jeulin, in PROBAMAT: Probabilities and Materials, ed. by G. N. Frantziskonis. Probabilistic Models of Structures (Kluwer, The Netherlands, 1998), pp. 233–257
P. Babin, G. Della Valle, H. Chiron, P. Cloetens, J. Hoszowska, P. Pernot, A.L. Réguerre, L. Salvo, R. Dendievel, Fast X-ray tomography analysis of bubble growth and foam setting during breadmaking J. Cereal Sci. 43, 393–397 (2006)
D.J. Stokes, A.M. Donald, In situ mechanical testing of dry and hydrated breadcrumb in the environmental scanning electron microscope (ESEM) J. Mater. Sci. 35, 599–607 (2000)
D.G.H. Daniels, N. Fisher, Release of carbon dioxide from dough during baking J. Sci. Food Agric. 27, 345–351 (1976)
R.C. Hoseney, in Component Interaction During Heating and Storage of Baked Products, ed. by J.M.V. Blanshard, P.J. Frazier, T. Galliard. Chemistry and Physics of Baking. Materials, Processes and Products (Royal Society of Chemistry, London, 1986), pp. 216–226
Acknowledgment
The authors would like to thank F. Huber for ESEM images (LERMAB, Nancy), A.-L. Réguerre for images analysis (INRA, Nantes), T. Dessev (Univ. Plovdiv, Bulgaria), and N. Lassoued (ENSIA, Massy) for experiments and helpful discussions.
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Chaunier, L., Chrusciel, L., Delisée, C. et al. Permeability and Expanded Structure of Baked Products Crumbs. Food Biophysics 3, 344–351 (2008). https://doi.org/10.1007/s11483-008-9073-8
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DOI: https://doi.org/10.1007/s11483-008-9073-8