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Chinese Agricultural Science Bulletin ›› 2021, Vol. 37 ›› Issue (30): 128-132.doi: 10.11924/j.issn.1000-6850.casb2020-0437

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The Correlation Between Characteristic Spoilage Gas and Freshness of Clean Eggs During Storage

Hu Yunfeng(), Chen Yanan, Zhang Liping, Chen Junran   

  1. State Key Laboratory of Food Nutrition and Safety, Tianjin University of Science and Technology, Tianjin300457
  • Received:2020-09-08 Revised:2020-12-25 Online:2021-10-25 Published:2021-12-08

Abstract:

To study the correlation between the characteristic spoilage gas H2S produced by clean eggs during storage and the freshness of clean eggs, the conventional quality indicators of eggs and the concentration of H2S gas in the egg chamber were measured. And linear regression analysis was performed on the value of each index and H2S concentration. The experimental results show that with the increase of storage time, the weight of clean eggs, the Huff unit, and the yolk coefficient all have a downward trend, while the diameter of the air chamber and pH have an upward trend. The concentration of H2S gas gradually increases with the extension of storage time. The linear regression analysis of the characteristic spoilage gas H2S concentration and each quality index shows that the H2S concentration value has a significant correlation with the egg quality index. The regression equation of the Huff unit is y=-0.197x+16.484, and the coefficient of determination is R2=0.9782. Therefore, it is feasible to use the characteristic spoilage gas H2S concentration produced by clean eggs to characterize the freshness of eggs.

Key words: clean eggs, storage, freshness, spoilage gas, H2S

CLC Number: