This study aimed to compare and evaluate the effects of different protein coatings on maintaining the quality of eggs stored for six weeks at 20 °C. 308 brown table eggs from ISA Brown hens were used for four treatments: uncoated eggs, coated with rice protein concentrate – RPC, soy protein concentrate – SPC, and whey protein concentrate – WPC. Eggs started with Haugh Units (HU) of 82.01 and reduced in proportions of 28.75% (control), 12.82% (RPC), 12.90% (SPC), and 10.54% (WPC) on the last day of storage. Coated eggs showed smaller reductions (P < 0.0001) in this response. Protein coatings can effectively maintain the quality of eggs stored for six weeks at 20 °C. However, the WPC coating maintained the highest egg rate and the best yolk index for eggs stored for six weeks at 20 °C.
Akarca, G., Istek, Ö., and Tomar, O. (2021). The effect of resin coating on the quality characteristics of chicken eggs during storage. Journal of Food Science, 86(4): 1243–1257. https://doi.org/10.1111/1750-3841.15686.
Akter, Y., Kasim, A., Omar, H., and Sazili, A.Q. (2014). Effect of storage time and temperature on the quality characteristics of chicken eggs. Journal of Food, Agriculture and Environment, 12(3–4): 87–92.
Almeida, D.S.D., Schneider, A.F., Yuri, F.M., Machado, B.D., and Gewehr, C.E. (2016). Egg shell treatment methods effect on commercial eggs quality. Ciência Rural, 46: 336–341.
Antunes, A.J. (2003). Funcionalidade de proteínas do soro de leite bovino. Editora Manole Ltda, p. 135.
Biladeau, A.M. and Keener, K.M. (2009). The effects of edible coatings on chicken egg quality under refrigerated storage. Poultry Science, 88(6): 1266–1274. https://doi.org/10.3382/ps.2008-00295.
Caner, C. and Yüceer, M. (2015). Efficacy of various protein-based coating on enhancing the shelf life of fresh eggs during storage. Poultry Science, 94(7): 1665–1677. https://doi.org/10.3382/ps/pev102.
Derelioglu, E. and Turgay, O. (2022). Effect of chitosan coatings on quality and shelf-life of chicken and quail eggs. African Journal of Food Science, 16(3): 63–70. https://doi.org/10.5897/AJFS2021.2158.
Funk, E. (1948). The relation of the yolk index determined in natural position to the yolk index as determined after separating the yolk from the albumen. Poultry Science, 27(3): 367.
Haugh, R.R. (1937). A new method for determining the quality of an egg. US Egg Poultry, 39: 27–49.
Khattak, A., Sharma, M., and Sanghi, D. (2016). Extension of shelf life of raw eggs using whey protein based eggshell coating. International Journal of Food and Nutritional Sciences, 5(3): 80.
Lacroix, M. and Vu, K.D. (2014). Edible coating and film materials: proteins. In: Han, J.H. (Ed.), Innovations in food packaging. Elsevier, pp. 277–304.
Lopes, L.C., da Silva, A.O., and Luvielmo, M.M. (2022). Evaluation of the quality and mechanical resistance of eggs with the application of biodegradable coatings. Revista Engenharia na Agricultura – REVENG, 30: 75–84. https://doi.org/10.13083/reveng.v30i1.13214.
Martínez, Y., Soliz, N.D., Bejarano, M.A., Paz, P., and Valdivie, M. (2021). Effect of storage duration and temperature on daily changes in external and internal egg quality of eggs from Dekalb White® laying hens. European Poultry Science, 85. https://doi.org/10.1399/eps.2021.329.
Obanu, Z.A. and Mpieri, A.A. (1984). Efficiency of dietary vegetable oils in preserving the quality of shell eggs under ambient tropical conditions. Journal of the Science of Food and Agriculture, 35(12): 1311–1317. https://doi.org/10.1002/jsfa.2740351207.
Oliveira, G.S., dos Santos, V.M., Rodrigues, J.C., and Santana, Â.P. (2020). Conservation of the internal quality of eggs using a biodegradable coating. Poultry Science, 99(12): 7207–7213. https://doi.org/10.1016/j.psj.2020.09.057.
Oliveira, G.D.S, McManus, C., Pires, P.G. D.S., and dos Santos, V.M. (2022). Combination of cassava starch biopolymer and essential oils for coating table eggs. Frontiers in Sustainable Food Systems, 6: 957229. https://doi.org/10.3389/fsufs.2022.957229.
Pires, P.G.S., Bavaresco, C., Wirth, M.L., and Moraes, P.O. (2022): Egg coatings: trends and future opportunities for new coatings development. World's Poultry Science Journal, 78(3): 751–763. https://doi.org/10.1080/00439339.2022.2075298.
Pires, P.G.S., Machado, G.S., Franceschi, C.H., Kindlein, L., and Andretta, I. (2019a). Rice protein coating in extending the shelf-life of conventional eggs. Poultry Science, 98(4): 1918–1924. https://doi.org/10.3382/ps/pey501.
Pires, P.G.S., Pires, P.D.S., Cardinal, K.M., Leuven, A.F.R., Kindlein, L., and Andretta, I. (2019b). Effects of rice protein coatings combined or not with propolis on shelf life of eggs. Poultry Science, 98(9): 4196–4203. https://doi.org/10.3382/ps/pez155.
Sariyel, V., Aygun, A., Coklar, H., Narinc, D., and Akbulut, M. (2022). Effects of prestorage application of gum arabic coating on the quality of table eggs during storage. Kafkas Universitesi Veteriner Fakultesi Dergisi, 28: 363–370. https://doi.org/10.9775/kvfd.2022.27077.
Xu, L., Zhang, H., Lv, X., Chi, Y., Wu, Y., and Shao, H. (2017). Internal quality of coated eggs with soy protein isolate and montmorillonite: Effects of storage conditions. International Journal of Food Properties, 20(8): 1921–1934. https://doi.org/10.1080/10942912.2016.1224896.
Yamak, U.S., Sarica, M., Erensoy, K., and Ayhan, V. (2021). The effects of storage conditions on quality changes of table eggs. Journal of Consumer Protection and Food Safety, 16: 71–81. https://doi.org/10.1007/s00003-020-01299-6.
Yüceer, M. and Caner, C. (2014). Antimicrobial lysozyme-chitosan coatings affect functional properties and shelf life of chicken eggs during storage. Journal of the Science of Food and Agriculture, 94(1): 153–162. https://doi.org/10.1002/jsfa.6322.