Growth CurveStationaryCOLONYFORMINGUNITSDeathLogLag一TIMESHIHEZI UNIVERSITY
Growth Curve COLONY FORMING UNITS TIME Lag Log Stationary Death SHIHEZI UNIVERSITY
Growth CurveStationaryTURBIDITY(cloudiness)AutolysisLogLagTIMESHIHEZI UNIVERSITY
Growth Curve TURBIDITY (cloudiness) TIME Lag Log Stationary Autolysis SHIHEZI UNIVERSITY
Generation TimeTime for bacterial mass to doubleExample100 bacteria present at time OIf generation time is 2 hrAfter 8 hr mass = 100 x 24SHIHEZI UNIVERSITY
Generation Time Time for bacterial mass to double Example 100 bacteria present at time 0 If generation time is 2 hr After 8 hr mass = 100 x 24 SHIHEZI UNIVERSITY
The Meaning of DeathFor a microbial cell, death means the irreversibleloss of the ability to reproduce (grow and divideThe empirical test of death is the culture of cellson solid media: A cellis considered dead if it failsto give rise to a colony on any medium+Obviously, the reliability of the test depends uponchoice of medium and conditions MethodsSterilization AntimicrobialsSHIHEZI UNIVERSITY
The Meaning of Death For a microbial cell, death means the irreversible loss of the ability to reproduce (grow and divide) The empirical test of death is the culture of cells on solid media: A cell is considered dead if it fails to give rise to a colony on any medium Obviously, the reliability of the test depends upon choice of medium and conditions Methods Sterilization Antimicrobials SHIHEZI UNIVERSITY
Antimicrobial AgentsThe following terms are commonly employed in connection withantimicrobial agents and their usesBiocideSepticBacteriostaticAntisepticBactericidalAseptic SterilizationReservation DisinfectantAntibioticsSHIHEZI UNIVERSITY
The following terms are commonly employed in connection with antimicrobial agents and their uses Antimicrobial Agents Biocide Bacteriostatic Bactericidal Sterilization Disinfectant Septic Antiseptic Aseptic Reservation Antibiotics SHIHEZI UNIVERSITY