坛紫菜干品色差测定条件的优化研究-豆柴文库

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坛紫菜干品色差测定条件的优化研究
摘要
本研究旨在优化坛紫菜干品色差测定的条件，以获得更加准确和可重复的结果。首先，对不同波长下的色差值进行比较，确定最适宜的波长范围。其次，通过改变浓度和pH值，探究不同处理条件对色差值的影响。最后，利用优化后的条件对坛紫菜的色差进行测定，结果表明，优化后的测定条件具有更好的准确性和可重复性。本研究有助于为坛紫菜的质量控制提供参考。
关键词：色差测定，坛紫菜干品，优化条件，质量控制
Introduction
Colorisanimportantindicatoroffoodqualityandcanreflectthenutritionalstatus,freshnessandeventasteofthefood.Thus,thecolormeasurementoffoodproductshasbecomeawidelyusedmethodforproductqualityassessmentandcontrol.Amongdifferenttypesoffood,dryseaweedproductsaregainingincreasingpopularityasahealthyandconvenientsnackoringredientinvariousdishes.However,thecolorofthedryseaweedproductscanchangeduetovariousreasonssuchasstorageconditionsandprocessingmethods,whichmayaffecttheoverallqualityandconsumeracceptability.
Boltingpurplelaver(Z.bolanderi)isatypeofdriedseaweedproductthatiswidelyconsumedinChina.Thecolorofboltingpurplelaverisanimportantqualityparameterforconsumersandproducers.Thecolormeasurementmethodsfordryseaweedproductsmainlyincludecolorimetry,spectrophotometryandcolordifferencemeasurement.Amongthem,colordifferencemeasurementisamoresensitiveandaccuratemethodfordetectingsmallchangesincolorandiswidelyusedinthefoodindustry.
However,theaccuracyandreliabilityofcolordifferencemeasurementcanbeaffectedbyvariousfactorssuchasthetypeofinstrument,themeasurementconditionsandthesamplepreparationmethods.Therefore,itisnecessarytooptimizethemeasurementconditionstoobtainmoreaccurateandreliableresults.
MaterialsandMethods
Samplepreparation:Boltingpurplelaversampleswerepurchasedfromalocalsupermarket.Thesamplesweregroundintopowderandstoredinadesiccatoratroomtemperatureuntiluse.
Colordifferencemeasurement:Acolorimeter(KonicaMinoltaCR-400)wasusedtomeasurethecolordifferenceofboltingpurplelaversamples.Thesampleswereplacedinastandardwhiteplateandthemeasurementsweretakenatawavelengthrangeof400-700nmwitha10nminterval.ThecolordifferencevalueswerecalculatedbasedontheCommissionInternationaledel'Eclairage(CIE)1976L*a*b*colorspace.
Optimizationofmeasurementconditions:Theeffectofdifferent