Evaluation of resistance development and viability recovery by toxigenic and non-toxigenic Staphylococcus aureus strains after repeated cycles of high hydrostatic pressure

2015 ◽  
Vol 46 ◽  
pp. 515-520 ◽  
Author(s):  
Inês Baptista ◽  
Rui P. Queirós ◽  
Ângela Cunha ◽  
Sílvia M. Rocha ◽  
Jorge A. Saraiva ◽  
...  
Keyword(s):  
Staphylococcus Aureus ◽  
Hydrostatic Pressure ◽  
High Hydrostatic Pressure ◽  
Resistance Development

Bacteriophage performance against Staphylococcus aureus in milk is improved by high hydrostatic pressure treatments

2012 ◽  
Vol 156 (3) ◽  
pp. 209-213 ◽  
Author(s):  
R. Tabla ◽  
B. Martínez ◽  
J.E. Rebollo ◽  
J. González ◽  
M.R. Ramírez ◽  
...  
Keyword(s):  
Staphylococcus Aureus ◽  
Hydrostatic Pressure ◽  
High Hydrostatic Pressure

scholarly journals High hydrostatic pressure treatment for the inactivation of Staphylococcus aureus in human blood plasma

2012 ◽  
Vol 29 (3) ◽  
pp. 409-414 ◽  
Author(s):  
Nolwennig Rivalain ◽  
Jean Roquain ◽  
Jean-Michel Boiron ◽  
Jean-Paul Maurel ◽  
Alain Largeteau ◽  
...  
Keyword(s):  
Staphylococcus Aureus ◽  
Hydrostatic Pressure ◽  
Blood Plasma ◽  
Human Blood ◽  
High Hydrostatic Pressure ◽  
Human Blood Plasma ◽  
Pressure Treatment ◽  
High Hydrostatic Pressure Treatment

Synergism between high hydrostatic pressure and glutaraldehyde for the inactivation of Staphylococcus aureus at moderate temperature

2018 ◽  
Vol 102 (19) ◽  
pp. 8341-8350
Author(s):  
Marriam Yamin ◽  
Ancelmo R. Souza ◽  
Bianca G. Castelucci ◽  
Juliana G. Mattoso ◽  
Carlos Francisco Sampaio Bonafe
Keyword(s):  
Staphylococcus Aureus ◽  
Hydrostatic Pressure ◽  
High Hydrostatic Pressure ◽  
Moderate Temperature

scholarly journals Biological Approach to Modeling of Staphylococcus aureus High-Hydrostatic-Pressure Inactivation Kinetics

2010 ◽  
Vol 76 (21) ◽  
pp. 6982-6990 ◽  
Author(s):  
Guillermo Cebrián ◽  
Chris W. Michiels ◽  
Pilar Mañas ◽  
Santiago Condón
Keyword(s):  
Staphylococcus Aureus ◽  
Sodium Chloride ◽  
Hydrostatic Pressure ◽  
Growth Phase ◽  
High Hydrostatic Pressure ◽  
Stationary Growth Phase ◽  
Inactivation Rate ◽  
Inactivation Kinetics ◽  
Stationary Growth ◽  
Tail Region

ABSTRACT Graphs for survival under high hydrostatic pressure (450 MPa; 25°C; citrate-phosphate buffer, pH 7.0) of stationary-growth-phase cells of eight Staphylococcus aureus strains were found to be nonlinear. The strains could be classified into two groups on the basis of the shoulder length. Some of them showed long shoulders of up to 20 min at 450 MPa, while others had shoulders of <3.5 min. All strains showed tails. No significant differences in the inactivation rate were found during the log-linear death phase among the eight strains. The entry into stationary growth phase resulted both in an increase in shoulder length and in a decrease in the inactivation rate. However, whereas shoulder length proved to depend on sigma B factor activity, the inactivation rate did not. Recovery in anaerobiosis decreased the inactivation rate but did not affect the shoulder length. Addition of the minimum noninhibitory concentration of sodium chloride to the recovery medium resulted in a decrease in shoulder length and in an increase in the inactivation rate for stationary-growth-phase cells. In the tail region, up to 90% of the population remained sensitive to sodium chloride.

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