Any of a variety of antimicrobial chemicals

Depends on circumstance & degree of control required

An item that is absolutely free of microbes including endospores & viruses

Does not consider prions

Disinfection

Disinfectants

Biocides

The process that eliminates most or all pathogens on or in a material

Those used for disinfecting inanimate objects

Kills bacteria & their endospores, fungi & viruses

Antiseptics

Pasteurization

Decontamination

Disemfectants used on the skin

Brief heat treatment to reduce the number of spoilage organisms & kill pathogens

A treatment used to reduce the # of pathogens to a level comsidered safe to handle

Degerming

Sanitized

Preservation

Treatment used to decrease the # of microbes in an area, particularly the skin

A substantially reduced microbial population that meets accepted health standards

Process of delaying spoilage of foods or other perishable products

Nosocomial

Aseptic technique

Hospital acquired infections

Use of specific methods to exclude contaminating microorganisms from an environment

Membrane filter

Depth filter

Liquid to be sterilized flows through the filterbon top of the flask in response to a vacuum produced in the flask by means of a pump

Trap material within thick filtration material such as cellulose or diatomaceous earth

HEPA

laminar flow hoods 

Remove nearly all microorganisms that have a diameter greater than .3 from air; employed for keeping microorganisms out pf specialized hospital rooms designed for patients who are extremely susceptible to infection

Biological safety cabinets

Electromagnetic radiation

Electromagnetic spectrum

Radio waves, microwaves,visible & UV light rays, X-rays and gamma rays; energy travels at the speed of light in waves & has no mass

Full range of wavelengths 

Wavelength

Frequency

Distance from crest to crest of a wave 

# of waves per second

ALDEHYDES

(glutaraldehyde, orthophthalaldehyde)

Formalin

Destroy microorganisms & viruses by inactivating proteins and nucleic acids 

Formadehyde is used as a gas or an aqueous 37% solution

Biguanides

(chlorhexidine)

Cationic detergents that are nontoxic enough to be used to disinfect cooking surfaces 

Resistant by pseudomonas (hospital room image)

Chemical

Low temperature

Water availability

Adding sugar/salt

Drying food (lysophilization)