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자료유형
학술저널
저자정보
저널정보
한국환경보건학회 한국환경보건학회지 한국환경보건학회지 제41권 제6호
발행연도
2015.1
수록면
438 - 448 (11page)

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Objectives: This study was performed to examine the effects of storage time and temperature and theirinteraction on the hygienic quality parameters of shell eggs. Methods: Eggs from 40-week-old Hy-Line Brown hens were sampled immediately after being laid andsubjected to storage periods of four weeks at a refrigerated temperature (4-5oC) or room temperature (13.0-19.7oC). Interior/exterior qualities were examined every one week. Results: Weight loss was 2.4-3.1%. The initial specific gravity of the eggs was maintained until one week at bothtemperatures. Air cell size exceeded 4 mm when stored for one week at room temperature, and two weeks atrefrigerated temperature. Albumen index and Haugh unit were significantly decreased at both temperatures afterone week (p<0.001). Rapidly increased pH of the albumen with one week of storage was observed, regardlessof temperature (p<0.001). Extension of the storage for up to four weeks at room temperature resulted inremarkable deterioration of eggshell quality and instrumental color as redness (a). Air cell size, albumen and yolkindices, Haugh unit, pH of albumen and yolk were found to be influenced by storage time and temperature(p<0.001). Interaction effects between storage time and temperature were also significant for air cell size, pH ofalbumen and yolk (p<0.001). Conclusion: The results suggest that air cell size and pH of albumen and yolk were important parametersinfluenced by storage time and temperature in shell eggs. Storage time was more influential for air cell size, andtemperature for the pH of yolk. Both variables almost equally influenced the pH of albumen.

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