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2011, vol. 15, iss. 3, pp. 160-164
Rupture force and color of quince during osmotic drying
aUniversity of Novi Sad, Faculty of Agriculture
b'PD Smeberija' a.d. Bijeljina, Republika Srpska

emailmradojcin@polj.uns.ac.rs
Project:
Integrated and organics fruit and vegetable products drying by combined technology (MESTD - 31058)

Keywords: quince; osmotyc drying; firmness; color
Abstract
Quince fruit is characterized by pleasant smell, taste and ability of long-term storage. However, beside these good characteristics, the high quality of hardness and firmness of the fruit influences the decrease in its usage in the fresh state. Drying process is not a regular method in processing this type of fruit. Combined drying is a method developed at the Faculty of Agriculture in Novi Sad and it consists of osmotic and convective drying. Disadvantages of the product got from convective drying only are eliminated with this method. The experiment tested the influence of osmotic drying on the force of rupture and quince color. Osmotic drying was done with the following combinations of temperature and concentration of sucrose solution in water: 40oC i 50oBx, 60oC i 50oBx, 40oC i 65oBx i 60oC i 65oBx. The convective drying of the samples was uniformly done by air drying at the temperature of 400C for 20 hours. Osmotic drying time was 180 minutes. Every 20 minutes samples were taken for the measurement of color, force of rupture and moisture. Sample testing by pressure was used for the analysis of rupture force of the quince. During osmotic drying on the samples, test was done on the samples of approximate size 10x10x10 mm. After convective drying, the same test was done on the samples with the original dimensions of 15x15x15 mm. The measuring instrument used in testing rupture force was TMS-PRO (Food Technology Coorporation - USA). Color measurement was performed by Konica Minolta colorimeter CR-400. CIE Lab values were used for color parameters. The change in color is defined by overall change in size of ΔE. With the analysis it was determined that the concentration of osmotic solution is an important factor in rupture force of the quince samples. The concentration of osmotic solution, has also shown an important influence on the changes in quince color. The collected results have been statistically processed in software Statistica 9.1.
References
Alvarez-Fernandez, A.P., Abadiäa, J., Anunciacioän, A. (2003) Effects of Fe Deficiency Chlorosis on Yield and Fruit Quality in Peach (Prunus persica L. Batsch). Journal of Agricultural and Food Chemistry, 51(19): 5738
Avila, I.M., Silva, C.M. (1999) Modelling kinetics of thermal degradation of color in peach puree. Journal of Food Engineering, 39(2): 161
Babić, L., Babić, M. (2000) Sušenje i skladištenje. Novi Sad: Poljoprivredni fakultet
Babić, L., Babić, M., Pavkov, I. (2003) Kombinovano osmotsko i konvektivno sušenje kajsije. Časopis za procesnu tehniku i energetiku u poljoprivredi / PTEP, vol. 7, br. 1-2, str. 1-3
Babić, M., Babić, L., Matić-Kekić, S., Pavkov, I., Karadžić, B. (2005) Održivi energetski model proizvodnje sušenog voća kombinovanom tehnologijom. Časopis za procesnu tehniku i energetiku u poljoprivredi / PTEP, vol. 9, br. 5, str. 109-111
Babić, M., Babić, L. (2007) Fizičke osobine poljoprivrednih materijala. Novi Sad: Poljoprivredni fakultet, Autorizovana predavanja
Babić, M., Babić, L., Pavkov, I., Radojčin, M. (2008) Promene fizičkih osobina dunje (Cydonia oblonga mill.) tokom osmotskog sušenja. Časopis za procesnu tehniku i energetiku u poljoprivredi / PTEP, vol. 12, br. 3, str. 101-107
Barreiro, J.A., Milano, M., Sandoval, A.J. (1997) Kinetics of color change of double concentrated tomato paste during thermal treatment. Journal of Food Engineering, 33, 359-371
Birth, G.S., Olsen, K.L. (1964) Nondestructive detection of water core in Delicius apples. Proc. Amer. Soc. Hort. Sci, 85, 74-84
Chen, P., Sun, Z. (1991) A review of non-destructive methods for quality evaluation and sorting of agricultural products. J. Agric. Eng. Res., 49(2), 85-98
Chua, K.J., Hawlader, M.N.A., Chou, S.K., Ho, J.C. (2002) On the study of time-varying temperature drying: Effect on drying kinetics and product quality. Drying Technology, 20(8), 559- 1577
Dull, G.G., Birth, G.S. (1989) Nondestructive evaluation of fruit quality: Use of near infrared spectrophotometry to measure soluble solids in intact honeydew melons. Hortscience, 24(5), 754-760
Felfoldi, J., Fekete, A., Gyori, E. (1995) Fruit color assessment by image processing. in: AGEng 96 International Conference on Agricultural Engineering, Madrid
Ibarz, A., Pagan, J., Garza, S. (1999) Kinetic models for color changes in pear puree during heating at relatively high temperatures. Journal of Food Engineering, 39(4): 415
Krokida, M.K., Maroulis, Z.B., Marinos-Kouris, D. (1998) Effect of drying method on physical properties of dehydrated products. in: International Drying Symposium (IDS 98), (XI), Halkidiki, Greece, Proceedings
Lozano, J.E., Ibarz, A. (1997) Color changes in concentrated fruit pulp during heating at high temperatures. Journal of Food Engineering, 31(3): 365
Magdić, D., Dobričević, N. (2007) Statistical evaluation of dynamic changes of Idared apples color during storage. in: International (2nd) and Croatian congress of technologists for post-harvest technology (19th), Tuheljske Toplice, Croatia, 311-316
Maskan, M. (2000) Microwave/air and microwave finish drying of banana. Journal of Food Engineering, 44, str. 71-78
Mayor, L., Sereno, A.M. (2004) Modeling shrinkage during convective drying of food materials: A review. Journal of Food Eng, 61, str. 373-386
Mohsenin, N.N. (1980) Physical properties of plant and animal materials. New York: Gordon and Breach Science Publishers
Nattuvetty, V.R., Chen, P. (1980) Maturity sorting of green tomatoes based on light transmittance through regions of the fruit. ASAE - Amer. Soc. Agric. Eng, 23(2), 515-518
Radojčin, M., Babić, M., Babić, L., Pavkov, I., Stojanović, Č. (2010) Promena parametara boje dunje tokom kombinovanog sušenja. Journal on Processing and Energy in Agriculture, vol. 14, br. 2, str. 81-84
Rodrigues, A.C.C., Cunha, R.L., Hubinger, M.D. (2003) Rheological properties and color evaluation of papaya during osmotic dehydration processing. Journal of Food Engineering, 59(2-3): 129
Worthington, J.T., Massie, D.R., Norriss, K.H. (1976) Light transmission technique for predicting time for intact green tomatoes. ASAE-Amer. Soc. Agric. Eng, 76(1), 46-49
 

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article language: English
document type: Original Scientific Paper
published in SCIndeks: 27/01/2012

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