MAP storage of shell hen eggs, Part 1: Effect on physico-chemical characteristics of the fresh product

被引:18
作者
Rocculi, Pietro [1 ]
Tylewicz, Urszula [1 ]
Pekoslawska, Agata [2 ]
Romani, Santina [1 ]
Sirri, Federico [1 ]
Siracusa, Valentina [3 ]
Rosa, Marco Dalla [1 ]
机构
[1] Univ Bologna, Alma Mat Studiorum, Dept Food Sci, Cesena, FC, Italy
[2] Warsaw Univ Life Sci, Fac Food Technol, Dept Food Engn & Proc Management, Warsaw, Poland
[3] Univ Catania, Dept Phys & Chem Engn, Catania, Italy
关键词
Shell eggs; Modified atmosphere packaging; Storage; Internal quality; CARBON-DIOXIDE; QUALITY; PRESERVATION; COATINGS;
D O I
10.1016/j.lwt.2008.09.017
中图分类号
TS2 [食品工业];
学科分类号
0832 ;
摘要
The aim of this study was to compare some physico-chemical properties (O-2 and CO2 in the package headspace, weight loss, pH, albumen and yolk water content and colour, Haugh unit) of non packed eggs and eggs packed in high barrier plastic pouches with three atmospheres (air, 100% N-2, 100% CO2) during 28 days of storage at 25 degrees C. Modified atmosphere packaging (MAP) permitted a strong reduction of the weight loss from the product. While the greatest quality decline was observed for the control eggs (not packed), eggs packed in CO2 maintained the initial values of Haugh unit during storage and the albumen pH was about 2 units lower than in the control group. Nevertheless, the light yellow colour Of CO2 sample albumen deepened and the shell gradually developed a powdery surface. MAP with 100% N2 did not promote any additional benefits to the eggs in comparison with the product packed in air. (c) 2008 Swiss Society of Food Science and Technology. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码:758 / 762
页数:5
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