Evaluation of bacterial contamination on three different surfaces within domestic refrigerators

作     者：Wenqi Zhang Junjiao Wang Yuanyuan Zhang Keping Ye Yiqing Han Chaowei Wang Cong Qi Xiaoyin Ge 

作者机构：Jiangsu Collaborative Innovation Center of Meat Production and ProcessingQuality and Safety ControlNanjing Agricultural UniversityNanjing 210095JiangsuP.R.China 

出 版 物：《Food Materials Research》 (食材研究（英文）)

年 卷 期：2022年第2卷第1期

页      面：168-174页

学科分类：0710[理学-生物学] 1007[医学-药学(可授医学、理学学位)] 100705[医学-微生物与生化药学] 07[理学] 071005[理学-微生物学] 10[医学] 

基　　金：support received from the Fundamental Research Funds for the Central Universities (KYZZ2022001) the National Key Research and Development Program of China (2021YFD2100802-02) 

主　　题：shelf simpler basket 

摘      要：The objectives of this study were to analyze the number of microorganisms,fungal composition and the correlation between bacterial enrichment and air quality on three internal surfaces(the inner wall,shelf,and basket)of domestic *** results showed that the inner wall had a significantly lower number of coliforms(P0.05),and the range was 0.2−2.5 log MPN cm^(-2).The total bacterial counts and psychrophilic bacterial counts on three internal surfaces in the same refrigerator tended to be ***,the inner wall owned a simpler bacterial community *** the genus level of fungi,the dominant flora of both the inner wall and shelf were Saccharomyces *** Candida spp.,while Saccharomyces spp.,Candida *** Fistulina *** superiority in the ***,Shannon index and Simpson index,which represent the bacterial community diversity,were the lowest on the wall,and six bacterial species on the inner wall had relative abundance higher than 0.5%of the total operational taxonomic units(OTUs),while for the shelf and basket,there were 12 and 11 bacterial species ***,there was a significant negative correlation in the basket between the chao1 index and *** study could provide guidance for the sanitation and recommend adequate packaging of foods stored in refrigerators.