文档介绍:该【《国外食品检验培训》 】是由【相惜】上传分享,文档一共【43】页,该文档可以免费在线阅读,需要了解更多关于【《国外食品检验培训》 】的内容,可以使用淘豆网的站内搜索功能,选择自己适合的文档,以下文字是截取该文章内的部分文字,如需要获得完整电子版,请下载此文档到您的设备,方便您编辑和打印。TrendsandNeedsinFoodDiagnostics
LarissaKahr-BIT,Austria
MalinBrännback-TEKES,Finland
GabrielavonBlankenfeld-Enkvist-TEKES,Finland
AimoftheStudy
InvestigatetechnologicaltrendsandneedsinFoodDiagnostics
Understandthefactorsthatshapeandinfluencethedevelopmentofthisfield.
.
Focus
Backgroundonfoodsafetymanagementtools
Descriptionofthemethodscurrentlyusedandnewmethodsdeveloped
Themarketforfooddiagnostics
.
Definitions
FoodDiagnosticsappliesmodernmethodsdevelopedinhumaninvitrodiagnostictofood
RapidMethodscomprisesdifferenttypesoftests
Miniaturisedbiochemicalkits
Antibody-basedtests
Nucleicacidhybridisation-basedtests
Manual,semi-automatedorfullyautomated
.
Detection
Bacteria,viruses,parasites,chemicals,biotoxins,heavymetalsandprions
Inallstepsofthefoodchain-fromrawmaterialstoendproducts
.
Foodastestmatrix
Extremelyvariedinitschemicalcomposition
Containsmanydifferentingredients
Mightcontainanintrinsicmicrobialflora
.
FrameFoodSafety
Processcontrolismoreefficientthanproductcontrol
Thesafetyofaproductwithlowdefectratescannotbeguaranteedthroughsamplingandtesting
Thefocusischangingfromend-producttestingtoHACCP
Thishastobeconsideredwhendevelopingnewmethodswithintheconceptualframeoffoodsafety
.
Microbiologicalmethodscanbedividedinto“traditional”or“conventional”methodsandrapidmethods
.
ConventionalMethods
Conventionalmethodsrelyonculturingmicroorgansimsontoagarplates
Laboriousandtime-consuming
84%ofalltestsarebasedoncountingviablecells
Requiredbynationalandinternationalregulatoryagenciesforofficialcontrol
.
RapidMethods
Advantagesinanalysistime
Possibilitytoeliminatelabourintensivesteps
Potentialforautomation
However,lengthyincubationproceduresarestillnecessary
Firstone-shiftmethodsunderdevelopment
ELISAandPCRaredominating
Lackofacommonvalidationprocedure
Mostlynotacceptedforofficialcontrolpurposes
.