Abstract
Heat and mass transfer phenomena take place during frying cause physicochemical changes, which affect the colour and surface of the fried products. The effect of frying temperature on the colour changes and heat transfer during deep fat frying of carrot has been investigated. The colour scale parameters redness (a*), yellowness (b*) and lightness (L*), and color change intensity (∆E) were used to estimate colour changes during frying as a function of oil temperature. L* value of fried carrot decreased during frying. The redness of fried carrot decreased during the early stages of frying, while it increased afterwards (become more red). A first-order kinetic equation was used for each one of the three colour parameters, in which the rate constant is a function of oil temperatures. The results showed that oil temperature has a significant effect on the colour parameters. Different kinetic models were used to fit the experimental data and the results revealed that the quadratic model was the most suitable to describe the color change intensity (∆E) (R > 0.96). Center temperature of carrot slice increased with increase in oil temperature and time during frying.
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References
Dueik V, Robert P, Bouchon P (2010) Vacuum frying reduces oil uptake and improves the quality parameters of carrot crisps. Food Chem 119:1143–1149
Lavelli V, Zanoni B, Zaniboni A (2007) Effect of water activity on carotenoid degradation in dehydrated carrots. Food Chem 104:1705–1711
Krokida MK, Tsami E, Maroulis ZB (1998) Kinetics on color changes during drying of some fruits and vegetables. Dry Technol 16:667–685. https://doi.org/10.1080/07373939808917429
Krokida M, Oreopoulou V, Maroulis Z, Marinos-Kouris D (2001) Colour changes during deep fat frying. J Food Eng 48:219–225
Paul S, Mittal G (1996) Dynamics of fat/oil degradation during frying based on optical properties. J Food Eng 30:389–403
Kozempel MF, Tomasula P, Craig JC (1995) The development of the ERRC food process simulator. Simul Pract Theory 2:221–236
Khalil A (1999) Quality of French fried potatoes as influenced by coating with hydrocolloids. Food Chem 66:201–208
Maity T, Bawa A, Raju P (2014) Effect of vacuum frying on changes in quality attributes of jackfruit (Artocarpus heterophyllus) bulb slices. Int J Food Sci 1–8
Oyedeji A, Sobukola O, Henshaw F, Adegunwa M, Ijabadeniyi A, Sanni L, Tomlins K (2017) Effect of frying treatments on texture and colour parameters of deep fat fried yellow fleshed cassava chips. J Food Qual 1–10
Shin S, Bhowmik SR (1995) Thermal kinetics of color changes in pea puree. J Food Eng 24:77–86
Salehi F (2017) Rheological and physical properties and quality of the new formulation of apple cake with wild sage seed gum (Salvia macrosiphon). J Food Meas Charact 11:2006–2012. https://doi.org/10.1007/s11694-017-9583-5
Salehi F, Kashaninejad M (2015) Effect of drying methods on rheological and textural properties, and color changes of wild sage seed gum. J Food Sci Technol 52:7361–7368. https://doi.org/10.1007/s13197-015-1849-5
Sabbaghi H, Ziaiifar A, Sadeghi MA, Kashaninejad M, Mirzaei H (2017) Kinetic modeling of color changes in french fries during frying process. J Food Technol Nutr 14:65–76
Maskan M (2001) Kinetics of colour change of kiwifruits during hot air and microwave drying. J Food Eng 48:169–175. https://doi.org/10.1016/S0260-8774(00)00154-0
Sulaeman A, Keeler L, Giraud D, Taylor S, Wehling R, Driskell J (2001) Carotenoid content and physicochemical and sensory characteristics of carrot chips deep-fried in different oils at several temperatures. J Food Sci 66:1257–1264
Mariscal M, Bouchon P (2008) Comparison between atmospheric and vacuum frying of apple slices. Food Chem 107:1561–1569
Nourian F, Ramaswamy H, Kushalappa A (2003) Kinetic changes in cooking quality of potatoes stored at different temperatures. J Food Eng 60:257–266
Kahyaoglu T, Kaya S (2006) Modeling of moisture, color and texture changes in sesame seeds during the conventional roasting. J Food Eng 75:167–177
Shyu SL, Hau LB, Hwang LS (2005) Effects of processing conditions on the quality of vacuum-fried carrot chips. J Sci Food Agric 85:1903–1908
Salehi F, Kashaninejad M (2014) Effect of different drying methods on rheological and textural properties of Balangu seed gum. Dry Technol 32:720–727
Salehi F, Kashaninejad M, Jafarianlari A (2017) Drying kinetics and characteristics of combined infrared-vacuum drying of button mushroom slices. Heat Mass Transf 53:1751–1759. https://doi.org/10.1007/s00231-016-1931-1
Garayo J, Moreira R (2002) Vacuum frying of potato chips. J Food Eng 55:181–191
Moss JR, Otten L (1989) A relationship between color development and moisture content during roasting of peanuts. Can Inst Food Sci Technol J 22:34–39
Manjunatha S, Ravi N, Negi P, Raju P, Bawa A (2014) Kinetics of moisture loss and oil uptake during deep fat frying of Gethi (Dioscorea kamoonensis Kunth) strips. J Food Sci Technol 51:3061–3071
Baik O, Mittal G (2003) Kinetics of tofu color changes during deep-fat frying. LWT Food Sci Technol 36:43–48
Yamsaengsung R, Ariyapuchai T, Prasertsit K (2011) Effects of vacuum frying on structural changes of bananas. J Food Eng 106:298–305
Yagua CV, Moreira RG (2011) Physical and thermal properties of potato chips during vacuum frying. J Food Eng 104:272–283
Vélez-Ruiz J, Vergara-Balderas F, Sosa-Morales M, Xique-Hernández J (2002) Effect of temperature on the physical properties of chicken strips during deep-fat frying. Int J Food Prop 5:127–144
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Salehi, F. Color changes kinetics during deep fat frying of carrot slice. Heat Mass Transfer 54, 3421–3426 (2018). https://doi.org/10.1007/s00231-018-2382-7
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DOI: https://doi.org/10.1007/s00231-018-2382-7