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The effect of the olive phenolic compound, oleuropein, on growth and enterotoxin B production by Staphylococcus aureus
| Content Provider | Scilit |
|---|---|
| Author | Tranter, H. S. Tassou, Soula C. Nychas, G. J. |
| Copyright Year | 1993 |
| Description | Journal: Journal of Applied Bacteriology The presence of low concentrations (0.1% w/v) of oleuropein, a phenolic compound extracted from olives, delayed the growth of Staphylococcus aureus in NZ amine A and brain heart infusion media modified by the addition of growth factors and glucose (NZA+ and BHI+), as indicated by changes in conductance, whilst higher concentrations (0.4-0.6% w/v) inhibited growth completely. Intermediate concentrations of oleuropein (0.2%) prevented growth in BHI+ but allowed growth to occur in NZA+ despite an extended lag phase (30 h). Concentrations of oleuropein > 0.2% inhibited growth and production of enterotoxin B in both types of media. Lower levels (0.1%) did not affect the final viable count and production of toxin in BHI+ but decreased the number of viable organisms and reduced the toxin production in NZA+ by eightfold. An increase in the concentration of oleuropein resulted in a decrease in the amount of glucose assimilated and consequently the amount of lactate produced. In addition, oleuropein prevented the secretion of a number of exoproteins. Addition of oleuropein during the exponential phase appeared to have no effect on the growth of Staph. aureus in NZA+. |
| Related Links | http://onlinelibrary.wiley.com/doi/10.1111/j.1365-2672.1993.tb03023.x/pdf |
| Ending Page | 259 |
| Page Count | 7 |
| Starting Page | 253 |
| ISSN | 00218847 |
| DOI | 10.1111/j.1365-2672.1993.tb03023.x |
| Journal | Journal of Applied Bacteriology |
| Issue Number | 3 |
| Volume Number | 74 |
| Language | English |
| Publisher | Wiley-Blackwell |
| Publisher Date | 1993-03-11 |
| Access Restriction | Open |
| Subject Keyword | Journal: Journal of Applied Bacteriology Biotechnology and Microbiology Staphylococcus Aureus Phenolic Compound Olive Phenolic |
| Content Type | Text |
| Resource Type | Article |
| Subject | Microbiology Applied Microbiology and Biotechnology |
