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10
Physical Methods of Microbe Control
17
Microbiology
Undergraduate 3
04/26/2012

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Cards

Term
These two methods of microbial control involve moist heat:
Definition
  1. Boiling
  2. Autoclaving
Term
This method of moist heat microbial control requires a temperature of 100°C at 10 minutes to dentaure proteins:
Definition
Boiling
Term
Boiling is not reliable because some pathogens are:
Definition
Thermophilic
Term
This method of moist heat microbe control requires a temperature of 121°C for 15 minutes at 15 psi:
Definition
Autoclaving
Term
Autoclaving is the __ effective method for microbial control
Definition
Most
Term
To control microbes in milk, cream or beer, this method can be used at a temperature of 72°C for 15 seconds:
Definition
Pasteurization
Term
Pasteurization eliminates __ pathogens and lowers bacterial counts to prolong the quality of __ milk
Definition

Milk-borne

Refrigerated

Term
This method to control microbes requires the use of a direct flame or incineration and is 100% effective:
Definition
Dry heat
Term
This type of Dry Heat method can be used to prevent microbes on objects like pipets and other glassware and requires the heat of 170°C for 2 hours:
Definition
Hot air (oven)
Term
This method for microbe control uses a surface with pores small enough to retain microbes from liquids or gases:
Definition
Filtration
Term
Filtration can be used with in the following three uses:
Definition
  1. Enzyme
  2. Vaccine
  3. Antibiotic
Term
This is a bacteriostatic method for controlling microbes and is used for food, drugs and culture media:
Definition
Low Temperature
Term
This is a bacteriostatic method of controlling microbes that removes water and is used in food and on grapes:
Definition
Dessication
Term
This is a method of microbe control that uses hypertonic solutions like salt of sugar and is used in food:
Definition

Osmotic Pressure

 

Term

This is a method of microbe control that uses long, wavelength U.V. light that cannot penetrate an object:

 

i.e. used on equipment

Definition
Non-ionizing Radiation
Term
This is a method of microbe control that uses short wavelength gamma rays that can penetrate objects and is used in food and disposable medical supplies:
Definition
Ionizing Radiation
Term
Ionizing Radiation replaced __
Definition
Gas Sterilization
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