fevereiro 2015 vol. 1 num. 2 - XX Congresso Brasileiro de Engenharia Química

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OSMOTIC DEHYDRATION OF YACON SLICES: EFFECT OF DIFFERENT POLYOLS ON MASS TRANSFER PARAMETERS

MENDONÇA, K. S.; JESUS, J. R. de; PEREIRA, M. C. A.; CORRÊA, J. L. G.;

Artigo:

The aim of this study was to evaluate the parameters of mass transfer in the dehydration of yacon slices with different polyols as osmotic agents. The samples were immersed on hypertonic solutions (40 °Brix) of xylitol, maltitol, erythritol, isomalt and sorbitol at 25 °C. The kinetics of solid gain (SG), water loss (WL) and water activity (aw) of the yacon slices were evaluated over 120 minutes of osmotic dehydration. The effective diffusion coefficients of water and solids were calculated by the diffusive model of Fick. The results showed that the SG was greater in samples treated with solutions of erythritol and lower in isomalt and maltitol solutions. Samples immersed in solutions of sorbitol and xylitol showed intermediate SG. The samples treated in solutions of sorbitol, xylitol and erythritol presented higher water diffusion coefficients and were more effective at reducing parameters of WL and aw than the other polyols. The model of Fick represented well the differences between the kinetics of WL and SG for the tested polyols.

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DOI: 10.5151/chemeng-cobeq2014-1960-16667-150017

Referências bibliográficas
  • [1] A.O.A.C. 2002. Official Methods of Analysis of the Association of Official Analytical Chemists. 17th edn. Gaithersburg: William Horwitz, 2009.
  • [2] ALLALI, H.; MARCHAL, L.; VOROBIEV, E. Blanching of Strawberry by Ohmic Heating: Effects on the Kinetics of Mass Transfer during Osmotic Dehydration. Food Bioprocess Technol., v. 3 (3), p. 406-414, 2010.
  • [3] CHAUHAN, O. P.; SINGH, A.; SINGH, A.; RAJU, P. S.; BAWA, A. S. Effects of osmotic agents on colour, textural, structural, thermal, and sensory properties of apple slices. Int. J. Food Prop., v. 14 (5), p.1037-1048, 2011.
  • [4] CORRÊA, J.; PEREIRA, L.; VIEIRA, G.; HUBINGER, M. Mass transfer kinetics of pulsed vacuum osmotic dehydration of guavas. J. Food Eng., v. 96 (4), p.498-504, 2010.
  • [5] CRANK, J. The mathematics of diffusion. (2nded.). New York: Oxford University Press, 197
  • [6] FERRARI, C. C.; HUBINGER, M. D. Evaluation of the mechanical properties and diffusion coefficients of osmodehydrated melon cubes. Int. J. Food Sci. Tech., 43 (11), p. 2065-2074, 2008.
  • [7] FERRARI, C. C.; ARBALLO, J. R.; MASCHERONI, R. H.; HUBINGER, M. D. Modelling of mass transfer and texture evaluation during osmotic dehydration of melon under vacuum. Int. J. Food Sci. Tech., v. 46 (2), p. 436-443, 2011.
  • [8] Área temática: Engenharia e Tecnologia de Alimentos 7LABUZA, T. P. Oxidative changes in foods at low and intermediate moisture levels. In: Duckworth, R. B. Water relations of foods. ed. New York: Academic Press, 455p., 1975.
  • [9] LAGO, C. C.; BERNSTEIN, A.; BRANDELLI, A.; NOREÑA, C. P. Z. Characterization of Powdered Yacon (Smallanthus sonchifolius) Juice and Pulp. Food Bioprocess Technol., v. 5 (6), p.2183-2191, 2012.
  • [10] LENART, A.; DABROWSKA, R. Kinetics of osmotic dehydration of apples with pectin coatings. Drying Tech., v. 17 (7-8), p. 1359 – 1373, 1999.
  • [11] MALDONADO, S.; SANTAPAOLA, J. E.; SINGH, J.; TORREZ, M.; GARAY, A. Cinética de la transferência de massa durante la deshidratación osmótica de yacon (Smallanthus sonchifolius). Cien. Tecnol. Alim., v. 28 (1), p. 251-256, 2008.
  • [12] MERCALI, G. D.; TESSARO, I. C.; NOREÑA, C. P. Z.; MARCZAK, L. D. F. Mass transfer kinetics during osmotic dehydration of bananas (Musa sapientum, shum.). Int. J. Food Sci. Tech., v. 45 (11), p. 2281–2289, 2010.
  • [13] MUJUNDAR, A.; LAW, C. Drying Technology: Trends and Applications in Postharvest Processing. Food Bioprocess Technol., v. 3 (6), p. 843-852, 2010.
  • [14] PEREIRA, J. A. R.; BARCELOS, M. F. P.; PEREIRA, M. C. A.; FERREIRA, E. B. Studies of chemical and enzymatic characteristics of Yacon (Smallanthus sonchifolius) and its flours. Food Sci Technol., v. 33 (1), p. 75-83, 2013.
  • [15] SRITONGTAE, B.; MAHAWANICH, T.; DUANGMAL, K. Drying of osmosed cantaloupe: effect of polyols on drying and water mobility. Drying Tech., v. 29 (5), p.527-535, 2011.
  • [16] REIS, F. R.; LENZI, M. K.; MUÑIZ, G. I. B.; NISGOSKI, S.; MASSON, M. L. Vaccum Drying Kinetics of Yacon (Smallanthus sonchifolius) and Effect of Process Condictions on Fractal Dimension and Rehydration Capacity. Drying Tech., v. 30 (1), p.13-19, 2012.
  • [17] URIBE, E.; MIRANDA, M.; VEGA-GÁLVEZ, A.; QUISPE, I.; CLAVERÍA, R.; SCALA, K. Mass Transfer Modelling During Osmotic Dehydration of Jumbo Squid (Dosidicus gigas): Influence of Temperature on Diffusion Coefficients and Kinetic Parameters. Food Bioprocess Technol., v. 4 (2), p. 320-326, 2011.
  • [18] VIANA, A. D.; CORRÊA, J. L. G.; JUSTUS, A. Optimisation of the pulsed vacuum osmotic dehydration of cladodes of fodder palm. International Journal of Food Science Andamp; Technology, v. 49(3), p. 726–732, 2014.
Como citar:

MENDONÇA, K. S.; JESUS, J. R. de; PEREIRA, M. C. A.; CORRÊA, J. L. G.; "OSMOTIC DEHYDRATION OF YACON SLICES: EFFECT OF DIFFERENT POLYOLS ON MASS TRANSFER PARAMETERS", p. 5069-5076 . In: Anais do XX Congresso Brasileiro de Engenharia Química - COBEQ 2014 [= Blucher Chemical Engineering Proceedings, v.1, n.2]. São Paulo: Blucher, 2015.
ISSN 2359-1757, DOI 10.5151/chemeng-cobeq2014-1960-16667-150017

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