In vitro screening of lactobacillus species from homemade yoghurt for antagonistic effects against common bacterial pathogens
Author
Source
Jordan Journal of Biological Sciences
Issue
Vol. 6, Issue 3 (30 Sep. 2013), pp.211-216, 6 p.
Publisher
The Hashemite University Deanship of Academic Research and Graduate
Publication Date
2013-09-30
Country of Publication
Jordan
No. of Pages
6
Main Subjects
Topics
Abstract EN
Four species of lactic acid bacteria (LAB) were isolated from homemade yoghurt samples and defined as Lactobacillus acidophilus Lactobacillus bulgaricus, Lactobacillus casei, and Lactobacillus plantarum.
Each LAB isolate was tested for its tolerance to acidic environments at pH (7.0, 4.0, and 2.0).
All lactobacilli isolated tolerated acid while L.
bulgaricus was sensitive to pH 2.0.
All four bacteria were resistant to ciprofloxacin.
Isolates were further tested for their antimicrobial activity against common pathogenic bacteria such as Escherichia coli, Klebsiella pneumoniae, Proteus mirabilis, Pseudomonas aeruginosa, Staphylococcus aureus (MRSA), and Bacillus subtilis using the agar spot method.
These lactic acid bacteria were found to inhibit growth of most pathogens tested.
The viability of lactobacilli isolates were not affected by storage (for 6 weeks) at -20P PC and 4P PC but declined when they were stored at room temperature.
Acid tolerance and bacterial antagonistic characteristics of these LAB isolates render them good candidates for consideration as probiotics.
American Psychological Association (APA)
Ahmad, Akhtar Ahmad. 2013. In vitro screening of lactobacillus species from homemade yoghurt for antagonistic effects against common bacterial pathogens. Jordan Journal of Biological Sciences،Vol. 6, no. 3, pp.211-216.
https://search.emarefa.net/detail/BIM-340299
Modern Language Association (MLA)
Ahmad, Akhtar Ahmad. In vitro screening of lactobacillus species from homemade yoghurt for antagonistic effects against common bacterial pathogens. Jordan Journal of Biological Sciences Vol. 6, no. 3 (Sep. 2013), pp.211-216.
https://search.emarefa.net/detail/BIM-340299
American Medical Association (AMA)
Ahmad, Akhtar Ahmad. In vitro screening of lactobacillus species from homemade yoghurt for antagonistic effects against common bacterial pathogens. Jordan Journal of Biological Sciences. 2013. Vol. 6, no. 3, pp.211-216.
https://search.emarefa.net/detail/BIM-340299
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 215-216
Record ID
BIM-340299