Effect of Fat Content on Water Sorption Properties of Biscuits Studied by Nuclear Magnetic Resonance

Fa-yi Hao¹, Li-xin Lu^{1, 2,} and Chang-feng Ge³

¹Jiangnan University, Wuxi, P.R. China

²Jiangsu Key Laboratory of Advanced Food Manufacturing Equipment and Technology, Wuxi, P.R. China

³Rochester Institute of Technology, 78 Lomb Memorial Drive, Rochester, NY 14623, USA

Cite this paper:
Fa-yi Hao, Li-xin Lu and Chang-feng Ge. Effect of Fat Content on Water Sorption Properties of Biscuits Studied by Nuclear Magnetic Resonance. Journal of Food and Nutrition Research. 2014; 2(11):814-818. doi: 10.12691/jfnr-2-11-9

Abstract

Moisture sorption isotherm is a well established method to characterize water sorption properties and behavior of food materials. However, this approach doesn’t adequately reflect the molecular mobility that taking place during water sorption process. Nuclear magnetic resonance (NMR) can provide information about the water mobility and molecular interactions between water and food components. The biscuits with different fat addition were studied using water sorption isotherm and ¹H low-field NMR at and water activity ranging from 0.2 to 0.90, the changes in equilibrium moisture content, transverse relaxation time(T₂) and proton intensity of biscuits were defined. The T₂ were measured with Carr-Purcell-Meiboom-Gill (CPMG) sequences. It was demonstrated that fat content of biscuits influenced directly the equilibrium moisture content and water status. One or two water populations were observed as the water activity increased, each of which had a distinct relaxation time T₂ or molecular mobility. The relaxation time manifested that with the increase of fat addition, the water inside the samples became more mobile, and proton intensity indicated that the amount of water uptake decreased with increasing fat addition. The low-field NMR was demonstrated to provide complementary interpretation to that of water sorption isotherm.

Keywords:
Nuclear magnetic resonance water sorption isotherm transverse relaxation time biscuit fat content

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References:

[1]	Iglesias, H. A. and Chirife, J. Handbook of food isotherms: Water sorption parameters for food and food components. Academic Press Inc, , 1982.
[2]	Schmidt, S.J. Water and solid mobility in foods. In: Advance in Food and Nutrition Research (Edited by Taylor, S. Nebraska, USA: Academic Press, 2004, 1-101.
[3]	Pitombo, R.N.M., Lima, G.A.M.R.. Nuclear magnetic resonance and water activity in measuring the water mobility in Pintado (Pseudoplatystoma corruscans) fish, Journal of Food Engineering, 58, 59-66, 2003.
[4]	Roca, E., Guillard, V., Guilbert, S. and Gontard, N. Moisture migration in a cereal composite food at high water activity: effects of initial porosity and fat content. Journal of Cereal Science, 43, 144-151, 2006.
[5]	Roca, E., Broyart, B., Guillard, V., Guilbert, S. and Gontard,N. Controlling moisture transport in a cereal porous product by modification of structural or formulation parameters. Food Research International, 40, 461-469, 2007.
[6]	Kim, S. S., Kim, S. Y., Kim, D. W., Shin, S. G. and Chang, K. S. Moisture sorption characteristics of composite foods filled with chocolate. Journal of Food Science, 64, 300-302, 1999.
[7]	Agudelo-Laverde, L.M., Carolina S.and Maria del P.B.. Proton mobility for the description of dynamic aspects of freeze-dried fruits. Journal of Food Engineering, 125, 44-50, 2014.
[8]	Lina, M. A., Carolina, S., and Maria del P.B.. Proton mobility for the description of dynamic aspects of freeze-dried fruits. Journal of Food Engineering, 125, 44-50, 2014.
[9]	Hills, B. P. and Nott, K. P. NMR study of water compartmentation in carrot parenchyma tissue during drying and freezing. Applied Magnetic Resonance, 17, 521-535, 1999.
[10]	Aylin, A., Mecit, H. O., Kathryn, L. M. and Michael J. M. Monitoring changes in feta cheese during brining by magnetic resonance imaging and NMR relaxometry. Journal of Food Engineering, 107, 200-207, 2011.
[11]	Budiman, M., Stroshine, R.L., and Cornillon, P. Moisture measurement in cheese analogue using stretched and multi-exponential models of the magnetic resonance T2 relaxation curve. Journal of Dairy Research, 69, 619-632, 2002.
[12]	Alessia, L., Amir, M.A. and Yael, V. Characterization of water distribution in bread during storage using magnetic resonance imaging. Magnetic Resonance Imaging, 25, 1449-1458, 2007.
[13]	Chen, P. L., Long, Z., Ruan, R. and Labuza, T. P. Nuclear magnetic resonance studies of water mobility in bread during storage. Lebensmittel-Wissenschaft and Technology, 30, 178-183, 1997.
[14]	Mateusa, M.L., Championb, D., Liardona, R. and Voilley, A. Characterization of water mobility in dry and wetted roasted coffee using low-field proton nuclear magnetic resonance, Journal of Food Engineering, 81, 572-579, 2007.
[15]	Carini, E., Vittadini, E., Curti, E., Antoniazzi, F.&Viazzani, P. Effect of different mixers on physicochemical properties and water status of extruded and laminated fresh pasta. Food Chemistry, 122, 462-469, 2010.
[16]	Butz, P., Hofmann, C. and Tauscher, B. Recent developments in noninvasive techniques for fresh fruit and vegetable internal quality analysis. Journal of Food Science, 70, R131-R141, 2005.
[17]	Ruan, R. R., Wang, X., Chen, P. L., Fulcher, R. G., Pesheck, P.& Chakrabati, S. Study of water in dough using nuclear magnetic resonance. Cereal Chemistry, 76, 231-235, 1999.
[18]	Assifaoui,A., Champion, D., Chiotelli, E., and Verel, A. “Characterization of water mobility in biscuit dough using a low-field 1H NMR technique.” Carbohydrate Polymers, 64,197-204, 2006.
[19]	Le Grand, F., Cambert, M., Mariette, F. NMR Signal Analysis To Characterize Solid, Aqueous, and Lipid Phases in Baked Cakes, Journal of Agricultral and Food Chemistry, 55, 10947-10952, 2007.
[20]	Furmaniak, S., Terzyk, A.P., Goembiewski, R., Gauden, P.A., Czepirski,L. Searching the most optimal model of water sorption on foodstuffs in the whole range of relative humidity, Food Research International, 42, 1203-1214, 2009.
[21]	Baltsavias, A., Jurgens, A., van Vliet. T. Fracture Properties of Short-Dough Biscuits: Effect of Composition, Journal of Cereal Science, 29 (3), 235-244, 1999.
[22]	Ruan, R. R., & Chen, P. L. Water in Foods and Biological Materials: A Nuclear Magnetic Resonance Approach. 1st edition ed. Technomic Publishing Company, Inc, Lancaster, Pennsylvania, 1998.
[23]	Andersen, C. M., Frøst, M. B. and Viereck,N. Spectroscopic characterization of low-and non-fat cream cheeses. International Dairy Journal, 20, 32-39, 2010.