sterilization destruction
ofall viablecellssporesalellularentities
Disinfection destruction inhibitionremovalof microorganisms notsportfrom inanimatesurfalls
vanitization reovitionof microbial popto level whichreachpublicstandards
Antiseplis Removal Destructioninhibition
of microbes from livingtissueto prevent wound infection
Microbialcontrol Mechanical Physical Chemical Biological
terilants AutoclaveTyndallilationUATmembrane Airfiltration EtogasCeagasAldehydesToxinsNitin
mechanical
Filtration
traps particles
porous filters 0,20mtrapsspores cells
HEPA Nasfilters usedforair filtration
phyrical
moistheat Dryheat
denatures proteinsdegradenucleicacidsdisruptscell membranes lesseffective i Needs highertemps for
longerexposure time
Pasteurization storetop dehydrates cell
50 600 30min oxidised cellularconstituents
delaysfoodspoilagebyslowinggrowth denaturesproteins
FlashPasteurization HIST Radiation
7200 15min
UV Ionizing
xraysGamma
hightempsterilization
Ultra UHI aire
only surfaces deeppenetration
140 1500 135 stemmed
shallow
penetration
HH in containerforuptogodays dimers
thyminethymine lethal
inhibitsDNA
rep
Tyndallisation mutations
intermittant sterilization
steam60min
intubate 24hr
Repeat3x
g cannedfood
Autoclave
29Mnookpa
to12min
, Chemical
phenolics
Phenolderivatives lesstoxic p ersistantmore
irritating more stable
ring
Aromatic s Wsubstituents
cellmembranes
Denatureproteinsdisrupt
Alcohols
ethanol isopropanol
701Alcohol 301watermosteffective
lipidsdenatures proteinsdegradessurfacetension
degradesmembrane
Halogens
t.fmestpfeih'sioiiioiisdetcens
Iodophors Betaine nonstaining lessirritating
Bleach
eartffff.LY
p
Heavy metals oligodynamic
inactivate haltsmetabolism enzymaticactivity
precipitate proteins
byreactingw sulfhydrylgros
Mercurochrome
Agnos
QuaternaryAmmoniumcompounds
intra cationicnuorophilichead
ftp.tnsYfiYpmimfhhipatnio
Aldehydes
i
374 o to
iftoxins
acids
inactivate proteins nucleic
irritating
Gases
to penetrates packagessterilizesheat sensitivematerial
Reacts w DNA proteins NOrep enzymeactivity
Biological
Bacteriophage vibrio
Boello Nisin toxin
virusinfectsbacteria Bacterial predator no wig dehydration
noPMF noAed
Attachment Attacksprey
pygmy
penetration formsboelloplast in wall
Biosynthesis matures kills cell
maturation
lysis