基于色差法的鮮牛乳菌群檢測技術的研究.pdf

1、j二學碩士學位論文基于色差法的鮮牛乳菌群檢測技術的研究王麗哈爾濱理工大學竺塵鎏些王鑾蘭三蘭堡當蘭堡堡三ResearchofaNovelBacteriaChromaDetectionTechniqueBasedonColorDifferenceAbstractDairyproductjSthemostperfectfood，itcontainsnearlyallthenutrientsthehumanbodyneedsIttakesasp

2、ecialplaceinthefoodwehaveinourdailylifeThedairyconsumptionhasbeenusedbyWorldHealthOrganizationasoneoftheimportantcriteriatOmeasureacountry’SlivingstandardThetotalamountofbacteriainmilkoradairyproductisoneofthemostcritica

3、lindexesduringthewholeproduct—processingperiodThetotalamountofbacteriainrawmilkdirectlyaffectsqualityofadairyproductTherefore，quickmeasurementofthetotalamountofbacteriabeforedairyproductprocessingisveryimportantCurrently

4、thecommonmethodsappliedinthemeasurementofthetotalamountofbacteriaincludePlateCountmethod，ImpedancemethodandFlowCytometrymethod，etcInthePlateCountmethod，itsdifficulttogetallaccurateresultwhenthesampleisopaqueorwhentherear

5、esmallparticlesIntheImpedancemethod，astandardcurvehastobemadeineachdetectionIntheFlowCytometrymethod，onlyprofessionaltechnicianscanoperatetheFlowCytometerThedisadvantagesoftimeconsuming，highcost，andthecomplexityinoperati

6、on1“11akethesemethodsdi娟culttobeusedbroadlyInthisstudythecolordifferencemethodisappliedinthemeasurementofthetotalamountofbacteriaThismethodenjoystheadvantageofeasyhandling，quickdetectionandlowcost，atthesametime，colortheo

7、ryandbacteriatheoryareincorporatedinthismethod，andtheadvancedtechniqueincomputerisalsousedAsaresult，theexperimentaldevicethatisquicktodetectandcangivefairaccurateresultshasbeendevelopedApplyingthismethod，theindustriescan