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1、摘要我國(guó)傳統(tǒng)干腌肉制品以其獨(dú)特而濃郁的腌臘風(fēng)味深受消費(fèi)者的喜愛(ài),但同時(shí)也因?yàn)楹}量高,口感差等問(wèn)題制約了其發(fā)展。本實(shí)驗(yàn)選用肉塊作為干腌肉制品的研究模型,旨在研究加鹽量、腌制溫度以及腌制時(shí)間對(duì)干腌肉塊理化特性的影響,以期找山工藝控制上的量化指標(biāo),為干腌肉制品的品質(zhì)改良和工業(yè)化生產(chǎn)提供技術(shù)支持。本研究首先建立了干腌肉塊加鹽量的預(yù)測(cè)模型:Y=一0.02987十1.191X,通過(guò)此模型確定了加鹽量的合理范圍(3.5%~4.0%),為后期實(shí)驗(yàn)提供依據(jù)(加鹽量的水平設(shè)為3%、4%、5%)。研究結(jié)果表明:1)終產(chǎn)品(30天)的水分含量受腌制溫度的影響,但不
2、受加鹽量的影響。4。C下腌制的產(chǎn)品,在30天時(shí)的水分含量在56%左右,而9"CF腌制的產(chǎn)品,在30天時(shí)的水分含量在46%左右;2)所有肉塊在30天時(shí)的氯化鈉含量(濕基)均在5.5%~8.7%的范圍內(nèi),跟我國(guó)傳統(tǒng)干腌肉制品(如宣威火腿)相比,已經(jīng)有不同程度的下降:3)加鹽量為4%,腌制溫度為9℃的處理,在18天時(shí)部分肉塊發(fā)生了腐敗變質(zhì),腐敗肉塊的蛋白水解指數(shù)在4.5%以上,揮發(fā)性鹽基氮含量在40mg/1009以上,其余肉塊的蛋白水解指數(shù)均小于1.75%,揮發(fā)性鹽基氮含量均小于34.59m∥1009;4)加鹽量為5%,腌制溫度為4。C的肉塊,在3
3、0天時(shí)的TBA值為5.32mg/kz,其余肉塊的TBA值均小于3.70mg/kg;5)綜合所有的理化分析結(jié)果,選定加鹽量為4%,腌制溫度為40(2是干腌肉塊加工的最適條件。關(guān)鍵詞:干腌肉塊,腌制。理化特性AbstractTheChinesetraditionaldry—curedmeatproductsarepopularfortheiruniquequMityandstrongcuredflavor.Buttheirhi啦saltcontentandpoororganoleptichasrestrictedthemselvesdevelop
4、ment.Thisworkselectedmeatcutasthemodelofdry-curedmeatproduct,tostudytheeffectofamountsofaddedsalt,thecuringtemperatureandthecuringtimeonphysicochemiealcharacteristicsofdry—curedmeatcut.Ouraimwastofindthequantityindexinthetechniccontrolandtoprovidethetechnicalsupporttoimprov
5、ethequalityandtoindustrializetheproductionofdry-curedmeatproducts.Thisresearchdevelopedapredictivemodelonamountsofaddedsaltfordry-curedmeatcut:Y=.0.02987+1.191XBythismodelwecouldconfirmthesuitablerangeofamotmtsofaddedsalt(3.5%~4.0%)whichcouldbereferredtobythefollowingexperi
6、ment(thelevelofamountsofaddedsaltsetat3%.4%and5%、.Theresultoftheresearchindicated:11Thewatercontentofthefinishedproductproducedinthestudy(30days)wasaffectedbythecuringtemperaturebutnotaffectedbyamountsofaddedsalt.Curedat4℃for30days,thewatercontentoftheproductw∞about56%.Whil
7、ecuredat9℃for30days.thewatercontentoftheproductwasabout46%.21TheNaClcontentofallfinishedproduct(30days)wasbetween5.5%~8.7%,whichwasJesscomparedwiththetraditionaldry-curedmeatproducts.31Thesamplesadding4%ofsalt(w/w)andcuredat90Cbecamespoiledatthe18。day.ofwhichproteolysisinde
8、xwasbeyond4.5%andTVB-Ncontentwasbeyond40m∥1009.Proteolysisindexwaslessthan1.75%and