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SalmonellaTesting
Newwordsandphrases
Salmonella
Bacteriological
Immunological
Enzymic
Chromogenic
Immunochromatographic
Listeria
Flora
Agar
Peptone
Magnetic
Streak
Luminescent
Reagent
Giardia
Cryptosporidium
Protozoa(zoon)
Streptavidin
Immunosorbent
Broth
Immobilize
Inoculation
Text
(推动力)forthedevelopmentofnewtestswhicharedesignedtostreamlinethetestmethodsandprovidereliableandeconomicalresultstoensureboththebacteriologicalsafetyandlong-termstabilityofthefoodproducts.
Immunological,,manymethodsstillrequiresignificantcapitalinvestmentinequipmentandskilledpersonnelinordertoattainbesttestperformance.
ForSalmonellatestingtheabilitytoprovidequick,sensitiveandaccuratetestresultsisimportanttoensurethatthisdiverseandcommonlyencounteredgroupofpathogensisnotdistributedintothehumanfoodchain.
,thenchilledpriortosale,theproblembecomesoneofdetectionrequiringatestmethodwithhighsensitivitytothetargetorganism.
Conventionaltestsrequireaperiodofnonselectiveenrichmentfollowedbyafurtherperiodofenrichmentinaselectivegrowthmedium,whereconditionsfavourgrowthofthetargetorganism,whichcansubsequentlybeculturedbyplatingontoaselectiveagarplate.
Thesearchforlownumbersoftargetorganismshasalsobeensignificantlyimprovedbytheuseofimmuno-linkedmagneticbeads,whichcanbeusedto“select”.
Nowtheimmuno-linkedmagneticbeadscanbeusedtocapturetargetorganisms,,eitherbystreakingontoselectiveagarplatesorbycombinationwithluminescentreagentsinordertorapidlydetectlowlevelsofthetargetorganism.
MagneticbeadsareavailablefordetectionofSalmonella,:,,thusopeningthewayfornewmethoddevelopmentanddetectionoflesscommonmicroorganisms.