《感官评价分析》PPT课件.ppt

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1、ABCABC-SensoryAnalysis感官分析感官分析感官分析感官分析-FactorsInfluencingSensoryMeasurement影响感官测定的因素影响感官测定的因素影响感官测定的因素影响感官测定的因素-ProceduresForSmelling&Tasting闻味和闻味和闻味和闻味和尝味的程序尝味的程序尝味的程序尝味的程序-ControlsForSensoryTesting对感官测试的控制对感官测试的控制对感官测试的控制对感官测试的控制-MethodsofSensoryTests&theApplication感官测试的感官测试的感官测试的感官测试的方法及其应用方法及其应用

2、方法及其应用方法及其应用CONTENTWhatisSensoryAnalysis?什么是感官分析什么是感官分析SensoryAnalysisisascientificdisciplineusedtoevoke,measure,analyzeandinterpretreactionstothosecharacteristicsoffoodsandmaterialsastheyareperceivedbythesensesof:感官分析是一门科学，用来唤起、测量、分析和诠释对于食物和原料特质的反应如以下感觉：Sight视觉视觉Smell 嗅觉嗅觉Taste 味觉味觉Touch 触觉触觉 Heari

3、ng 听觉听觉textureMouth feelsmelldefectsviscositycolorsizeshapetasteKinestheticFlavorAppearanceSensory analysis is about collecting data from humanassessorstounderstandwhattheyperceivedwhenexposedtoaproduct感官分析是从人体感觉器官收集数据，进而了解它们是如何感知产品的Humanareusedasmeasuringinstrument.人类作为测量的仪器WhatisSensoryAnalysis?什么

4、是感官分析什么是感官分析TheSenseofSmell嗅觉嗅觉OlfactoryNerve嗅神经TrigeminalNerve三叉神经Aroma香气:OdourofProduct产品的气味(nasal route)顺鼻腔路径Aroma香气(retronasal route)逆鼻腔路径ProceduresForSmelling闻香的程序闻香的程序Repeatedshortorlonghardsniffs.或长或短地重复用力吸气Sniffsamenumberoftimesrestinginbetweeneachseries 每次休息时吸气次数保持一致Solids or semi-solids sh

5、ould be stirred or broken in order toexposetoafreshsurface 固体或半固体应搅拌或破碎以提供新鲜的表面TheSenseofTaste味觉味觉Bitter苦味苦味Acidic酸味酸味Salty咸味咸味Sweet甜味甜味Umami鲜味鲜味ProceduresForTasting尝味的程序尝味的程序Liquids液体Sameamountforeachjudge数量一致Tastesmallsipsandrollaroundmouthtoactivatealltastebudareas啜饮以激活所有的味蕾Orslurpsothatliquidiss

6、prayeduniformlythroughoutthemouth或咕嘟咕嘟地喝，使液体均匀分布在口腔Rinse mouth carefully with water or have a bite ofcracker仔细地漱口或者咬一口苏打饼干ProceduresForTasting尝味的程序尝味的程序Solids固体Takesmallmouthfeelsorpiecesaroundthetonguetoactivatealltastebudareas取小块品尝，绕舌一圈，以激活所有的味蕾Rinseandrestbetweensamplestoavoidcarry-overorfatigue品

7、尝不同样品间要漱口和休息一下，以避免味道残留或味觉疲劳HumanasmeasuringInstrument人类作为测量仪器人类作为测量仪器Sensory Stimulus 感官刺激感官刺激ResponseResponse反应反应反应反应Sense organ感觉器官Sensation感觉感觉Memory记忆记忆Expectation期望期望Motivation动力动力Brain大脑Perception知觉知觉HumanasmeasuringInstrument人类作为测量仪器人类作为测量仪器Thestimulushitsthesenseorganandisconvertedtoanervesi

8、gnalwhichtravelstothebrain;thebrainthenorganizesandintegratestheincoming sensation into perceptions with the contribution of pastexperience;lastly a response is formulatedbased on the subjectsperceptions感官受到刺激，将其转化为神经信号传输到大脑；大脑根据以往的经验将感觉组织整合为知觉.；最终，基于主体的知觉而形成反应FactorsInfluencingSensoryMeasurement影响感

9、官测定的因素影响感官测定的因素Expectationerror期望错误Stimuluserror刺激错误Leniencyerror宽大错误Proximityerror近似错误Centraltendencyerror中心化错误FactorsInfluencingSensoryMeasurement影响感官测定的因素影响感官测定的因素Suggestioneffect暗示效应Positionalbias(ordereffect)位置偏见(顺序效应)Contrasteffectand对照效应和集中错误convergenceerrorMotivation动力Expectationerror期望的错误In

10、formation given with the sample may triggerpreconceivedideas样品附带的信息可能导致先入为主Stimuluserror刺激的错误Irrelevantcriteria,suchascolororsizeinfluencetheobserver无关的标准如颜色或大小会影响观察者FactorsInfluencingSensoryMeasurement影响感官测定的因素影响感官测定的因素Leniencyerror宽大的错误Based on their feelings about the researcher,ignoringproductdi

11、fferences根据对研究者的感觉，而忽略了产品的差异FactorsInfluencingSensoryMeasurement影响感官测定的因素影响感官测定的因素Suggestioneffect暗示效应Reactionsofothermembersofapanelcaninfluencetheresponseofapanelist品尝小组中其他成员的反应会影响测试者Positionalbias(ordereffect)位置偏见(顺序效应)Scorethesecondproduct(ofasetofproducts)higherorlowerthanexpected给一组产品中第二个产品打分偏

12、高或偏低Contrasteffectandconvergenceerror 对照效应和集中错误Exaggerate the difference or mask small differencesbetweentheothersamplesintheirscores夸大或掩盖样品间的差异FactorsInfluencingSensoryMeasurement影响感官测定的因素影响感官测定的因素Proximityerror近似的错误Correlationbetweencharacteristicsclosetogethermaybehigherthanothercharacteristic相似特

13、征间的关联比其他特征间的关联可能要高一些Centraltendencyerror中心化的错误Scoring products in the midrange of a scale to avoidextremes给产品打分偏中等，以避免极端FactorsInfluencingSensoryMeasurement影响感官测定的因素影响感官测定的因素Motivation动力Affectssensoryperception.Fore.g.interestedpanelistisalwaysmoreefficientandreliable.动力会影响感官知觉。比如感兴趣的品尝小组成员总会更有效、更可靠

14、。FactorsInfluencingSensoryMeasurement影响感官测定的因素影响感官测定的因素ControlsForSensoryTesting对感官测试的控制对感官测试的控制EnvironmentControls环境的控制PanelistControls品评小组的控制EnvironmentControls环境的控制环境的控制PanelBoothTestingArea品评单间的测试区域Sensoryevaluationofproducts产品的感官品评DescriptiveEvaluation&TrainingArea描述性品评和培训的区域Meetingwithpanelist

15、和品评小组成员开会PreparationArea&ServingArea准备和分发的区域Samplepreparationandserving样品的准备和分发OfficeArea办公区域Administrativepreparationsoftestsandtheirinterpretation测试的行政准备和解释PanelBoothTestingArea品评单间的测试区域品评单间的测试区域Individualbooth单独隔开的小间Slidingdoor移动门Neutralwallcolor中性的墙壁颜色SinkandTap水槽和龙头Coloredlightning有颜色的光照Odor-fr

16、ee无气味Computer电脑DescriptiveEvaluation&TrainingArea描述性品评和培训区域描述性品评和培训区域Facilities similar to booth area设备和品评单间相似Conference style table for 6-12panelists可坐6-12人的会议桌Whiteboard,clock白板，时钟Preparationfacilitiesforreferencesamples准备参考样品的设施Preparation&ServingArea准备和分发区域准备和分发区域Well-equippedkitchen设备良好的厨房Odor-

17、free&ventilated无味且通风良好Air-conditioned空调Refrigerator/frozenstoragespace冰箱/冷冻保存空间Constructionmaterial建筑材料Specializedequipment特殊器材OfficeArea办公区域办公区域Closetopanelbooth靠近品评单间Convenient to locate records,storage space,any computerterminal便于安装记录、储存空间和电脑终端Phone,printer at sufficientdistance电话、打印机摆放在合理的距离内Sen

18、soryAnalysisLaboratory感官分析研究所感官分析研究所Mapping(FCA)图示图示F1F2FruitProduitAProduitBProduitCQuantitativeDescriptiveProfile定量的风味描述定量的风味描述Statistics统计统计Blindtests盲试盲试Controlledenvironment控制的环境控制的环境PanelistControl品评小组的控制品评小组的控制PanelOrientation品评员的指导Beforeevaluation品评前Donotsmokeandconsumesweets,coffeeoranythin

19、gwithastrongtasteimmediatelyorlessthan30minutesbeforethetest测试前30分钟内不可抽烟，吃糖，喝咖啡或品尝其他味重的东西Arriveatthetimeagreedforthetest准时到达PanelistControl品评小组的控制品评小组的控制PanelOrientation品评员的指导Beforeevaluation品评前Do not use strong perfume,perfumed after-shavelotion,perfumedsoap,etc不要使用浓烈的香水，润肤香水，香皂等Informedimpairedphy

20、sicalforme.g.Coldorheadache身体不适，如感冒或头痛PanelistControl品评小组的控制品评小组的控制PanelOrientation品评员的指导Duringevaluation测试中Donottalktocolleaguesduringassessments测试时不要和同事说话Do not bring extraneous items,such asnewspapersintothetestbooth不要带无关的东西到测试场所如报纸等PanelistControl品评小组的控制品评小组的控制PanelOrientation品评员的指导Duringevaluat

21、ion测试中Use all the time available for makingevaluations用全部的时间作测试Panelist are not allowed to visit the testkitchenduringthetest测试时成员不可去测试准备室Analytical分析的NewProductdevelopment新产品研发Productmatching产品复制Productimprovement产品改进Processchange工艺改变Storagestability贮存稳定性Productgradingandrating产品分级和打分Affective情感方面的

22、Consumeracceptance/opinions消费者认可/意见Consumerpreference消费者偏好Methods&Application方法和应用方法和应用TheSensorytests感官测试感官测试Descriptivetests描述测试Quantifieddescriptionofthedifferencesperceivedbetweenproducts定量地描述产品间的差异Analyticaltests分析测试分析测试Discriminativetests辨别测试Todetectifthereisadifferencebetweenarangeofproducts去

23、发现一组产品中是否有差别Affectivetests情感测试情感测试Hedonic/Preferencetests喜好测试Tostudypreferencesanddislikesofconsumers研究消费者的喜好和厌恶成对喜偏好测试成对喜偏好测试PairedPreferenceTest姓名姓名(Name):_部门部门(Department):_Pleaserinseyourmouthwithwaterbeforestarting.Youhavebeengiventwosamples.开始前请先漱口。您将品尝到两个样品Tastetheproductontheleftfirst.Thenta

24、stetheproductontheright.Youmayretasteasoftenasyouneedto.先尝左边产品,再尝右边产品。可以按自己的需要反复品尝Circlethenumberofpreferredsample.圈出您喜欢的产品(157)(468)Pleasecommentonthereasonsforyouchoice请说明您选择的理由:(157)(468)_Hedonic/Preferencetests喜好测试喜好测试排序偏好排序偏好测试RankPreferenceTest姓名姓名(Name):_部门部门(Department):_Pleaserinseyourmouth

25、withwaterbeforestarting,beforeeachsampleandanytimeyouneedto.请在开始时,品尝每个样品之间和任何您需要的时候漱口YouwillreceiveFOURsamples.Pleaserankthemintheorderofyourdegreeofpreference.你会收到四个样品(254,857,359,460),请按照喜欢的程度给它们排序Writetotheverytopthecodeofthesampleyoulikebest(towhichyougivethefirstpositioninthedegreeofpreference)

26、andtotheverybottomthecodeofthesampleyoulikeleast.将您最喜欢产品的编号写在最上方,最不喜欢的产品写在最下方Markthedegreeofpreferencefortheothersamplesinbetween.Tiesarenotallowed.其余的产品写在中间。不允许存在相互联系_1strankposition排列位置(mostliked最喜欢)_2ndrankposition排列位置_3rdrankposition排列位置_4thrankposition排列位置(leastliked最不喜欢)Hedonic/Preferencetests

27、喜好测试喜好测试享享乐乐型的批分型的批分测试测试HedonicRatingTest姓名姓名(Name):_部门部门(Department):_PleasetasteeachsamplefromLEFTtoRIGHT.Pleasedrinkwaterandeatacrackerbetweensamples.请请从左到右品从左到右品尝尝每个每个样样品。品。请请在品在品尝样尝样品之品之间间喝水吃喝水吃饼饼干干ConsideringAllcharacteristics(APPEARANCE,FLAVOUR,and TEXTURE).Indicateyouroverallopinionbycirclin

28、gonepointonthefollowingscale.考考虑虑所有特征所有特征(外外观观,风风味和味和组织组织),并圈出能并圈出能够够反映你整体意反映你整体意见见的分的分值值Describewhatyoulikedanddislikedabouteachofthesamples.描述你描述你对这对这个个产产品有什么喜品有什么喜欢还欢还是不喜是不喜欢欢的地方的地方?()_()_()_()_Hedonic/Preferencetests喜好测试喜好测试EvaluationForm姓名Name日期Date产品Product目标目标OBJECTIVE:Toobtaingeneraldescript

29、ionabouttheproductsbasedonthecommentsgivenbythepanellist,andtodeterminethepreferenceamongthesamples,formorethantwosamplesevaluation.INSTRUCTIONS:Youaregivenafewsamples.Pls.describethem,rateyourpreferenceandrankthemaccordingly(Remark:Equalranksarenotallowed.)1-DislikeExtremely非常不喜欢非常不喜欢;6-LikeSlightl

30、y有点喜欢有点喜欢;2-DislikeVeryMuch很不喜欢很不喜欢;7-LikeModerately喜欢喜欢;3-DislikeModerately不喜欢不喜欢;8-LikeVeryMuch很喜欢很喜欢;4-DislikeSlightly有点不喜欢有点不喜欢;9-LikeExtremely非常喜欢非常喜欢5-NeitherLikeNorDislike;既不喜欢也不讨厌既不喜欢也不讨厌Hedonic/Preferencetests喜好测试喜好测试三角测试三角测试TriangleTest姓名姓名(Name):P18_部门部门(Department):_您将品尝到您将品尝到3个样品。两个是同样的

31、，一个是不同的。个样品。两个是同样的，一个是不同的。Youhavebeengiventhreesamples.Twoofthesesamplesareidentical,oneisdifferent.请集中注意力，依次品尝这些样品，区分它们的不同之处：请集中注意力，依次品尝这些样品，区分它们的不同之处：Pleasetastethesesamplesintheordergivenbelowinconcentratingyourattentiononthedifferenceinflavour:圈出与其他两个不同的样品号圈出与其他两个不同的样品号Circlethenumberofthediffer

32、entsample.837911586标出它们之间的差别大小程度标出它们之间的差别大小程度Indicatethedegreeofdifferenceinflavourbetweentheidenticalsamplesandthedifferentone.评注：评注：Comments不同的样品：不同的样品：Differentsample_相同的样品：相同的样品：Identicalsamples_Discriminativetests辨别测试辨别测试对比测试对比测试Duo-TrioTest姓名姓名(Name):_部门部门(Department):_我们会给您一个标为我们会给您一个标为“R”的参照

33、样品和另外两个样品。的参照样品和另外两个样品。Youhavebeengivenareferencesample“R”andtwocodedsamples.请先品尝样品请先品尝样品“R”，然后再品尝其他两个。在后两个样品中选出您认为与然后再品尝其他两个。在后两个样品中选出您认为与“R”相同的样品。相同的样品。Pleasesmellandtastethereferencesample“R”first,followedbythetwocodedsamples.Indicatewhichofthetwocodedsamplesisidenticaltothereferencesample“R”.如果您

34、认为两个样品与如果您认为两个样品与“R”都很相似，您必须在其中猜选一个。都很相似，您必须在其中猜选一个。Ifnodifferenceisapparentbetweenthetwounknownsamples,youmustguess.可以允许重复品尝可以允许重复品尝Retastingisallowed.圈出您认为与参照样品相同的样品号圈出您认为与参照样品相同的样品号Circlethenumberoftheidenticalsample.278543评注：评注：Comments278543_Discriminativetests辨别测试辨别测试DIFFERENCEFROMCONTROLTEST五

35、五选二二测试TWOOUTOFFIVETEST姓名姓名(Name):P20_ 部门部门(Department):_我们会给您我们会给您五个样品五个样品.其中两个是同样的其中两个是同样的,而另三个相同成为一组而另三个相同成为一组.Youhavebeengivenfivesamples.Twoofthesefivesamplesbelongtooneset;theotherthreebelongtoanotherset.请选择两个相同的样品请选择两个相同的样品,在这两个样品编号边打上在这两个样品编号边打上X记号记号Identifythetwosampleswhichbelongtogetherbyp

36、lacinganXafterthecodenumber.同时请在评语栏里填上作相应评价同时请在评语栏里填上作相应评价Pleasecommentaccordingly.编号编号CODE_评语评语COMMENTS:Twosamplesgroup_Threesamplesgroup_Discriminativetests辨别测试辨别测试排序测试排序测试RankingTest姓名姓名(Name):_部门部门(Department):_您将品尝到不同甜味强度的三个样品您将品尝到不同甜味强度的三个样品Youhavebeengiventhreesamplesofdifferentsweetnessinten

37、sity.请闻其香味，尝其味，并回答下列问题请闻其香味，尝其味，并回答下列问题Pleasesmellandtastethesesamplesandanswerthefollowingquestion:399525833按其甜味强度依次排列按其甜味强度依次排列Rankthesethreeproductsinascendingorderoftheirsweetness:No.1_No.2_No.3_(No.1为为甜度最低，甜度最低，No.3为甜度最强为甜度最强)(WithNo.1oftheleastsweetnessandNo.3ofthehighestsweetness)评注：评注：Commen

38、ts_Discriminativetests辨别测试辨别测试打分打分测试ScalingTest姓名姓名(Name):_部门部门(Department):_产品产品(Product):Milkpowder(4)UtilisationoftheCATEGORYscaleSamples:987SWEET:0123456378SWEET:0123456249SWEET:0123456527SWEET:01234560.Absence1.JustDetectable2.Weak3.Moderate4.SlightlyStrong5.Strong6.VeryStrongDiscriminativetest

39、s辨别测试辨别测试打分打分测试测试ScalingTest姓名姓名(Name):_部门部门(Department):_IntensityratingscalewiththeutilisationofDifference.PleaserateaccordingtothereferenceRef.A:010Ref.B:010Samples:010268010457010176010534AbsentModerateVeryIntenseDiscriminativetests辨别测试辨别测试DIFFERENCEFROMCONTROLTESTName:_Date:3/11/01_TypeofSample

40、:*Instructions:.Youhavereceived4samples(3-digitcoded)andacontrolsamplemarked“R”.Tastethecontrolsamplemarked“R”first.Thentastethetestsamplemarked“XXX”intheindicatedsequenceorder.AssesstheoverallsensorydifferencesbetweenthetwosamplesusingthescaleBelow.Commentonthedifferences.012345678910NoModerateExtr

41、emeDiffDiff.RememberthataDuplicateControlisthesamplesomeofthetime.*CodeDegreeofDifferenceCommentsonDifference(Strength/Profileetc.)_732_581_463_694_Discriminativetests辨别测试辨别测试姓名姓名(Name):_部门部门(Department):_您将品尝到您将品尝到7种奶粉的样品种奶粉的样品,请闻其香，尝其味，并描述其口味请闻其香，尝其味，并描述其口味YouhavebeengivensevenMilkpowderproducts.P

42、leasesmellandtastethesamplesandtrytodescribetheperceivedtaste.确认您是否能感觉出下列描述，若不能，请将此描述此划去，若您想到另外的描述，请添加确认您是否能感觉出下列描述，若不能，请将此描述此划去，若您想到另外的描述，请添加Confirmifyoucanfeeltheselisteddescriptionsinthefollowingproducts.Ifno,pleaseslashonthisdescriptor.Andifyoudetectsomedescriptorsotherthanthelistedcomments,plea

43、seaddaccordingly.描述测试描述测试DescriptiveTestDescriptivetests描述测试描述测试描述测试描述测试DescriptiveTest Name姓名姓名:_Department部部门:_B/INTENSITYMEASUREMENTOFDESCRIPTORTastethesampleandgiveyouroverallopinionabouttheintensityofthedifferentnotesusingthe7-ptscale.Rinseyourmouthsoastoclearyourpaletteeachtimeaftertastingeachproducttogiveamoreaccurateratingforeachdescriptors.0.Absence1.JustDetectable2.Weak3.Moderate4.SlightlyStrong5.Strong6.VeryStrongSample:357Descriptivetests描述测试描述测试THEEND.终终.Thankyouforyourparticipation.谢谢您的参与谢谢您的参与。