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http://dx.doi.org/10.11002/kjfp.2014.21.5.609

Choosing quality indicators for quality prediction of egg in circulation  

Lee, Hye-Ok (Korea Food Research Institute)
Kim, Ji-Young (Korea Food Research Institute)
Kim, Byeong-Sam (Korea Food Research Institute)
Publication Information
Food Science and Preservation / v.21, no.5, 2014 , pp. 609-617 More about this Journal
Abstract
This study was conducted to identify quality indicators of the freshness of chicken eggs circulating in domestic markets. We first stored freshly-laid eggs at temperatures of 0, 10, 20, and $30^{\circ}C$, investigated their weight-loss rate, specific gravity, color, york index, albumen index, Haugh unit (HU), pH, and sensory evaluation, and finally analyzed the correlation between each quality characteristic and the sensory preference. At all the storage temperatures, the quality characteristics of the weight-loss rate, specific gravity, yolk index, albumen index, and HU showed significant correlations (p<0.05) with the preference. In particular, the temperature-dependent correlation between the quality characteristics and the sensory preference was significantly higher with increasing storage temperatures and weight-loss rates (r = -0.78; r = -0.93; r = -0.95; and r = -0.99), albumen index (r = 0.66; r = 0.89; r = 0.89; and r = 0.93), and HU values (r = 0.64; r = 0.92; r = 0.96; and r = 0.98) at 0, 10, 20, and $30^{\circ}C$, respectively (p<0.01). The Color and pH examinations yielded disparate results, and further research is needed to determine the methods of using the characteristics as quality indicators. We believe that the changes in the weight-loss rate, specific gravity, yolk index, albumen index, and HU are adequate quality indicators of the freshness of egg in circulation.
Keywords
egg; temperature; sensory evaluation; correlation; quality indicator;
Citations & Related Records
Times Cited By KSCI : 15  (Citation Analysis)
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