Journal of Appliance Science & Technology ›› 2025, Vol. 0 ›› Issue (zk): 563-567.doi: 10.19784/j.cnki.issn1672-0172.2025.99.117

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Detection of salmonella in fresh eggs and analysis of contamination in refrigerator freezer during cold storage

CUI Weijia, SUN Xiujiao, SUN Yongcai, GUO Fengna   

  1. Qingdao Haier Refrigerator Co., Ltd. Qingdao 266000
  • Published:2025-12-30

Abstract: The microbial contamination of the refrigerator freezer has a great impact on the health of users. In order to investigate the situation of salmonella contamination in commercial fresh eggs and the influence of cold storage on the contamination in refrigerator freezer, salmonella detection was carried out in commercial fresh eggs. The contaminated fresh eggs were put into the refrigerator freezer and a controlled experiment was designed to detect salmonella in the refrigerator freezer. The results showed that salmonella was present in the batch of fresh eggs, and the contaminated fresh eggs caused salmonella contamination in the refrigerator freezer. The main biochemical characteristics of Salmonella were analyzed. The research results a direction for the development and design of refrigerator, and provided reference for the application of antibacterial materials, sterilizing modules and related tools in refrigerator. At the same time, it also provides guidance for the daily use and maintenance of refrigerator in families.

Key words: Refrigerator, Refrigerate, Fresh eggs, Salmonella, Contaminate

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