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1、現(xiàn)代食品科技ModernFoodScienceandTechnology2014,Voi.30,No.8不同解凍方式對(duì)速凍蕎面碗托品質(zhì)的影響彭登峰,柴春祥,張坤生,王偉(天津商業(yè)大學(xué)生物技術(shù)與食品科學(xué)學(xué)院,天津市食品生物技術(shù)重點(diǎn)實(shí)驗(yàn)室,天津300134)摘要:采用自然空氣解凍、微波解凍、常壓蒸煮解凍和超聲波解凍對(duì)速凍蕎面碗托進(jìn)行解凍處理,對(duì)照沒(méi)有進(jìn)行謎凍處理的蕎面碗托,對(duì)不同解凍方式獲得的速凍蕎面碗托品質(zhì)進(jìn)行了探討結(jié)果顯示,四種解凍方式中微波解凍所需的解凍時(shí)間最短,為53s;質(zhì)構(gòu)方面,微波解凍的硬度、膠著
2、性和咀嚼性分別為1923g、1636g和1548g,都最接近于對(duì)照,自然空氣解凍和超聲波解凍的硬度偏大,咀嚼性偏差;感官評(píng)分方面,微波解凍與對(duì)照的感官評(píng)分為81.20分和81.00分,不存在顯著性差異(P>0.05);色澤方面,微波解凍和常壓蒸煮解凍的AE,對(duì)蕎面碗托色澤的影響無(wú)法用肉眼分辨;加壓失水率方面,微波解凍的加壓失水率為2.23%,最接近于對(duì)照;菌落總數(shù)方面,在四種解凍方法中,微波解凍的茵落總數(shù)最小,為278CFU/g;揮發(fā)性氣味方面,與對(duì)照相比,不同的解凍方式對(duì)速凍蕎面碗托的揮發(fā)性氣味都有影響
3、。試驗(yàn)明速凍蕎面碗托的最佳解凍方式為微波解凍。關(guān)鍵詞:蕎面碗托;速凍;解凍方式;品質(zhì)文章篇號(hào):1673.9078(2014)8.187.193EfectofDiferentThawingMethods0ntheQuality0fQuick-frozenBuckwheat白ntuoPENGDeng-feng,CHAIChun-xiang,ZHANGKun-sheng,WANGⅥ(TianjinKeyLaboratoryofFoodBiotechnology,CollegeofBiotechnologyand
4、FoodScience,TianjinUniversityofCommerce,Tianjin300134,China1Abstract:Comparedwithbuckwheatwantuothatwerenotquick-frozen,thequalityofquick-frozenbuckwheatwantuo,thawedusingdiferentmethodswasinvesfigated.Fourthawingmethodswerecompared,namelynaturalair,micro
5、wave,atmosphericpressurecooker,andultrasonicthawing.Theresultsshowedthatthemicrowavemethodrequired53S,whichwastheshortestthawingtimeamongthefourmethods.Intermsoftexture,theestimatesforhardness,gumminess,andchewinessofquick-frozenbuckwheatwantuousingmicrow
6、avethawingwere1923g,1636g,and1548g,respectively,whichweretheclosesttothoseofthecontro1.Naturalair-thawingandultrasonicthawingshowedrelativelyhighlevelsofhardness,withlowlevelsofchewiness.Thesensoryscoresofthesampleusingmicrowavethawingandthecontrolwere81.
7、20and81.O0,respectively,withnosignificantdiference>0.05).Intermsofcolor,theAEvalueswithmicrowavethawingandatmosphericpressure-cookerthawingmethodswerelessthan2,whiletheirindividualeffectsonthecolorofquick-frozenbuckwheatwantuocouldnotbedistinguishedbythen
8、akedeye.TherateofwaterlosswithmicrowavemethodWas2.23%,whichwastheclosesttothatobservedwiththecontrolmethod.Microwavethawingshowedthelowestbacterialcountsof278CFU/g,amongallfourthawingmethods.Ascomparedtothecontrol,a