Question

Antimicrobial methods target different parts of a microbial cell or structure Enveloped viruses have a membrane which has proteins and phospholipids that enhance attachment, the first stage of viral replication. Therefore, damage to the envelope prevents viral replication. Non enveloped viruses are able to tolerate harsher environments. Proteins regulate cellular metabolism and form cell structure, damage to protein bonds through heat or certain chemicals denature proteins and render them non functional. Chemicals radiation and heat can alter nucleic acids which may lead to fatal mutations Ribozymes form peptide bonds during translation, so physical or chemical agents that affect nucleic acids stop protein synthesis The physical methods for controlling microbial growth are moist heat, dry heat, refrigeration, freezing desiccation, lyophilizati, filtration, osmotic pressure, ionizing radiation and nonionizing radiation. Table 9.4 p 273 summarizes each method, use that information to complete the following question 6.

Answer 1

Moest heat steileスation is nee e ef ectal than heat to kill micrebas hecause molst hat makes u c euator. water heats pnq retains and delivero hsat and echibit apid pntraten ot heat eney tc tie micrehe. low tempenature tor erter pesicd time is utficient since high pressurs hapidl is uttectine in case o reist heat stesiizatien.