Samaa Youssif Mohamed, A. A. N. A. All, L. I. Ahmed, N. Soliman
{"title":"Microbiological Quality of Some Dairy Products with Special Reference to the Incidence of Some Biological Hazards","authors":"Samaa Youssif Mohamed, A. A. N. A. All, L. I. Ahmed, N. Soliman","doi":"10.3923/ijds.2020.28.37","DOIUrl":null,"url":null,"abstract":"Background and Objective: Ingestion of contaminated dairy products causes foodborne diseases (FBD) which pose a significant but often under recognized threat to public health, worldwide, consequently this study was aimed to throw light on the microbiological quality of some dairy products sold in Egyptian markets. Materials and Methods: Ninety random samples of ice cream, Ras cheese and fresh white soft cheese (30 of each) collected from dairy shops and stores in Port-Said and Giza governorates, Egypt and examined microbiologically. Results: The mean titratable acidity of ice cream, Ras cheese and fresh white soft cheese samples were (0.13, 0.43 and 0.14%), microbiological examination proved contamination of the examined samples with high numbers of aerobic mesophilic microorganisms, coliform, staphylococci, yeast, mold and anaerobic spore formers. E. coli was isolated from Ras and white fresh soft cheese with 2.9 and 4.4%, respectively. Listeria monocytogenes couldn't be isolated from all of the examined samples, while Yersinia enterocolitica was isolated from 23.3% of ice cream samples. Conclusion: Inadequate hygienic conditions of production and storage mandate the promotion of hygienic regulations and guarantee of safety from production until receiving to consumer.","PeriodicalId":35398,"journal":{"name":"International Journal of Dairy Science","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2019-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"8","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"International Journal of Dairy Science","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.3923/ijds.2020.28.37","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"Agricultural and Biological Sciences","Score":null,"Total":0}
引用次数: 8
Abstract
Background and Objective: Ingestion of contaminated dairy products causes foodborne diseases (FBD) which pose a significant but often under recognized threat to public health, worldwide, consequently this study was aimed to throw light on the microbiological quality of some dairy products sold in Egyptian markets. Materials and Methods: Ninety random samples of ice cream, Ras cheese and fresh white soft cheese (30 of each) collected from dairy shops and stores in Port-Said and Giza governorates, Egypt and examined microbiologically. Results: The mean titratable acidity of ice cream, Ras cheese and fresh white soft cheese samples were (0.13, 0.43 and 0.14%), microbiological examination proved contamination of the examined samples with high numbers of aerobic mesophilic microorganisms, coliform, staphylococci, yeast, mold and anaerobic spore formers. E. coli was isolated from Ras and white fresh soft cheese with 2.9 and 4.4%, respectively. Listeria monocytogenes couldn't be isolated from all of the examined samples, while Yersinia enterocolitica was isolated from 23.3% of ice cream samples. Conclusion: Inadequate hygienic conditions of production and storage mandate the promotion of hygienic regulations and guarantee of safety from production until receiving to consumer.
期刊介绍:
International Journal of Dairy Science is dedicated to disseminate the international original research on all aspect of dairy science. International Journal of Dairy Science publishes original scientific research on all aspects of dairy science including: animal husbandry, the physiology, biochemistry and endocrinology of lactation, milk production, composition, preservation, processing and separation, biotechnology and food science, properties of milk proteins and other components, dairy products such as cheese, fermented milks and spreads, relevant studies in bacteriology, enzymology and immunology, the use of milk products in other foods; and the development of methods relevant to these subjects.