中文摘要：本研究通过检测鼠伤寒沙门式菌、Salmonella enteritidies、大肠杆菌O157:H7、抗生素残留及黄曲霉毒素B1残留，确保并评价埃及卡夫拉谢赫省市场销售的进口牛肝的安全性。结果表明，冻肝在售卖前经过了良好、卫生、规范的处理；但是，抗生素残留比例很高，说明忽视了动物屠宰前的停药时间；此外，检测到了黄曲霉毒素B1残留，虽不致造成威胁，但如果经常食用，则足以引起问题，说明动物饲料受到了黄曲霉毒素的污染。
外文摘要：The objective of this study was to ensure and evaluate the safety of imported frozen beef liver traded in supermarkets of Kafr El-Sheikh Governorate, Egypt, through detection of Salmonella typhimurium, Salmonella enteritidies, Escherichia coli O157:H7, antibiotic residues, and aflatoxin B1 residue. Fifty samples of imported frozen liver were randomly collected from different shops at Kafr El-Sheikh Governorate for isolation of S. typhimurium, S. enteritidies, and E. coli O157:H7. The results revealed that for both microorganisms 4% of the examined samples presumed to contain Salmonella and E. coli O157:H7 organisms, according to the colonial character on Harlequin Salmonella ABC agar media and Harlequin SMAC-BCIG agar media. According to biochemical and serological identifications, both organisms could not be detected in the examined samples. A total of 29 (58%) samples were positive for antibiotic residues, using the Premi test (a broad-spectrum screening test for the detection of antibiotic residues in meat) at or below the maximum residue limits. In addition, aflatoxin B1 was detected in one (2%) samples with a concentration of 1.1 μg/kg. The results reflect that there was good hygiene practice for handling and preparation of frozen liver while selling to consumers. However, a high percentage of antibiotic residues reflect ignorance of withdrawal time before slaughtering of animals as well as misuse of antibiotics in veterinary fields. Furthermore, aflatoxin B1 residue was detected in examined frozen liver samples at a concentration below the maximum residual level, which is not enough to cause threat to humans, but it is enough to cause problem if it is eaten regularly reflect contamination of animal feed with aflatoxins.
外文关键词：aflatoxin B；antibiotic；E. coli O157:H7；liver；Salmonella
作者：Kirrella, GAK；Deeb, AMM；Abdallah, RMI
作者单位：Kafrelsheikh Univ
期刊名称：JOURNAL OF FOOD AND DRUG ANALYSIS
期刊影响因子：1.98
出版年份：2017
出版刊次：3
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