Bacteriocin Production Of Enterococcus Species Isolated From Milk And Some Cheese Samples
saad, S., Soliman, S., refae, M., Hassanin, A., Abdel-Maksoud, B., fahmy, H., mansour, A., Shaaban, H. (2022). Bacteriocin Production Of Enterococcus Species Isolated From Milk And Some Cheese Samples. EKB Journal Management System, 65(9), 405-413. doi: 10.21608/ejchem.2022.114180.5193
Sherif adel saad; Selim Abdelaziz Soliman; Mahmoud Mostafa refae; Ahmad Mohammad Hassanin; Badr saeid Abdel-Maksoud; hany mohammed fahmy; amr farouk mansour; Hamdy Abdel-Gawaad Shaaban. "Bacteriocin Production Of Enterococcus Species Isolated From Milk And Some Cheese Samples". EKB Journal Management System, 65, 9, 2022, 405-413. doi: 10.21608/ejchem.2022.114180.5193
saad, S., Soliman, S., refae, M., Hassanin, A., Abdel-Maksoud, B., fahmy, H., mansour, A., Shaaban, H. (2022). 'Bacteriocin Production Of Enterococcus Species Isolated From Milk And Some Cheese Samples', EKB Journal Management System, 65(9), pp. 405-413. doi: 10.21608/ejchem.2022.114180.5193
saad, S., Soliman, S., refae, M., Hassanin, A., Abdel-Maksoud, B., fahmy, H., mansour, A., Shaaban, H. Bacteriocin Production Of Enterococcus Species Isolated From Milk And Some Cheese Samples. EKB Journal Management System, 2022; 65(9): 405-413. doi: 10.21608/ejchem.2022.114180.5193

Bacteriocin Production Of Enterococcus Species Isolated From Milk And Some Cheese Samples

Egyptian Journal of Chemistry
Article 38, Volume 65, Issue 9, September 2022, Page 405-413  XML PDF (623.94 K)
Document Type: Original Article
DOI: 10.21608/ejchem.2022.114180.5193
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Authors
Sherif adel saad1; Selim Abdelaziz Soliman1; Mahmoud Mostafa refae2; Ahmad Mohammad Hassaninorcid 3; Badr saeid Abdel-Maksoudorcid 4; hany mohammed fahmy5; amr farouk mansourorcid 6; Hamdy Abdel-Gawaad Shaaban email orcid 7
1Dairy Department, Faculty of Agriculture, Al Azhar University, Cairo, Egypt
22Dairy Department, Faculty of Agriculture, Mansoura University, Egypt
3Dairy Department, Faculty of Agriculture, Al Azhar University, Cairo, Egypt.
4Food Science and Technology Department, Faculty of Agriculture, Al-Azhar University
5Food science and technology Department, Faculty of Agriculture, Al-Azhar university, Cairo, Egypt
6chemistry of flavour and aroma department, food science and nutrition division,
7El-Behoose St. Dokki Giza Egypt
Abstract
Enterococci can be used as a starter or probiotic culture in the food industry. However, enterococci are also implicated in severe multi-resistant nosocomial infections. In this study, some probiotic characteristics such as antimicrobial activity and antibiotic susceptibility were investigated.Twenty-three strains of Enterococcus species isolated from Raw milk (7 strains), Karish cheese (8 strains), Domiati cheese (5 strains), and Ras cheese (3 strains) were studied for the capability to produce bacteriocin and antibiotic susceptibility.The seven studied antibiotics showed a different powerful effect on Enterococcus strains. The most effective antibiotic against 23 Enterococcus strains were amikacin, cefotaxime, and cefoxitin, which inhibited the growth of all tested strains, followed by levofloxacin azlocillin, and cloxacillin which inhibited 21, 19, and 19 strains, respectively, out of 23 studied strains. In addition, colistin showed the lowest powerful effect against all Enterococcus strains studied was resistant to this antibiotic. Antimicrobial activity was confirmed for all 23 strains against B. thuringiensis and 16, 13, 9, 9, 7, 6 out of 23 strains against Str. pyogenes, Ps. aeruginosa, B. cereus, Staph. aureus, E. coli O157:H7, and S. typhimurium, respectively. Strains E. faecium Rm5-1, E. faeciumRm6-1, E. durans Rm3-1, E. durans Rm3-2, E. durans Kc1-1, E. durans Kc5-2, E. faecalis Kc2-1, E. faecium Dc1-1, E. faeciumDc10-2, and E. durans Rc3-2 showed potent antimicrobial activity against most indicator strains.
Keywords
Enterococcus; E. faecium; Bacteriocin production; Antibiotic susceptibility
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