Effects of initial albumen quality and mineral oil-chitosan emulsion coating on internal quality and shelf-life of eggs during room temperature storage

Effects of mineral oil (MO) and mineral oil-chitosan emulsion (MO:CH=25:75) as coatings on internal quality and shelf-life of eggs were evaluated during 5-week storage at 25°C. Eggs with three different initial albumen qualities [Haugh unit (HU): H=87.8, M=75.6 and L=70.9] were evaluated. As storage...

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Main Authors: Damir Dennis Torrico, Hong Kyoon No, Sujinda Sriwattana, Dennis Ingram, Witoon Prinyawiwatkul
格式: 雜誌
出版: 2018
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在線閱讀:https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=79960687933&origin=inward
http://cmuir.cmu.ac.th/jspui/handle/6653943832/49573
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機構: Chiang Mai University
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總結:Effects of mineral oil (MO) and mineral oil-chitosan emulsion (MO:CH=25:75) as coatings on internal quality and shelf-life of eggs were evaluated during 5-week storage at 25°C. Eggs with three different initial albumen qualities [Haugh unit (HU): H=87.8, M=75.6 and L=70.9] were evaluated. As storage time increased, HU and yolk index values decreased whereas weight loss increased. Coating with MO and/or 25:75 MO:CH emulsion could preserve the internal quality for at least 4 more weeks for H-eggs and at least 3 more weeks for M and/or L-eggs, all with weight losses <0.92%. All coated eggs had >70% positive purchase intent, and their colour differences at week 0 could not be detected by naked human eye (ΔE *<3.0, noncoated eggs as reference). Consumers significantly differentiated freshly MO-coated from noncoated eggs on overall surface appearance. This study demonstrated that MO and 25:75 MO:CH emulsion coatings could preserve internal quality and prolong shelf-life of eggs. © 2011 The Authors. International Journal of Food Science and Technology © 2011 Institute of Food Science and Technology.