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1、研究與探討1.35,No.19,2014低溫嫩化過程中豬肉質(zhì)構(gòu)和感官性狀的變化張廷煥,陳磊,潘紅梅,王金勇。,帥素容(1.四川農(nóng)業(yè)大學(xué)動(dòng)物科技學(xué)院,四川雅安625014;2.重慶市畜牧科學(xué)院,重慶榮昌402460;3.農(nóng)業(yè)部養(yǎng)豬科學(xué)重點(diǎn)實(shí)驗(yàn)室,重慶榮昌402460)摘要:以商品肉豬背最長(zhǎng)肌為研究對(duì)象,在低溫(4℃)條件下進(jìn)行了24h(1d)、72h(3d)、144h(6d)3個(gè)時(shí)間段的嫩化處理,利用WarnerBratzler剪切力測(cè)定、質(zhì)構(gòu)剖面分析(TPA)和感官評(píng)定,分析了各處理組樣品質(zhì)構(gòu)和感官性狀隨嫩化時(shí)間遷移的變化。結(jié)果表明感官評(píng)定的硬度、彈性
2、、多汁性隨著嫩化時(shí)間增加持續(xù)顯著下降(P<0.05);剪切力測(cè)定的硬度、最大剪切力、平均剪切力僅在嫩化前期(1~3d)有顯著下降(p<0.05);TPA分析的彈性和粘性在前期(1~3d)有顯著的增加(P<0.05),硬度和咀嚼性在后期(3—6d)有顯著的下降(p<0.05),回復(fù)性在持續(xù)嫩化6d后顯著的增加(P<0.05),粘著性沒有隨嫩化時(shí)間增加而變化(P<0.05)。本實(shí)驗(yàn)結(jié)合儀器和感官兩種測(cè)定方法,分析了豬肉質(zhì)構(gòu)和感官性狀在不同嫩化時(shí)間的變化趨勢(shì),為優(yōu)化豬肉的嫩化成熟工藝提供了科學(xué)依據(jù)。關(guān)鍵詞:低溫嫩化,豬肉,質(zhì)構(gòu)性狀,感官性狀Changeson
3、texturecharaCteriStiCSandsensoryattributesofporkintheprocessoftenderizationatIOWtemperatureZHANGTing—huan,CHENLei,PANHong—mei,WANGJin—yong,SHUAISu—rong’(1.CollegeofAnimalScienceandTechnology,SichuanAgriculturalUniversity,Ya’an625014,China;2.ChongqingAcademyofAnimalScience,Rongch
4、ang402460,China;3.KeyLaboratoryoftheMinistryofAgricultureScienceofPig,Rongchang402460,China)Abstract:BasedontheIongissimusdorsimuscleofcommercialpigsastheresearchobject,thesamplesweretenderedfor24h(1d),72h(3d),144h(6d)respectivelyinthelowtemperature(4~C).Andporktexturewasassesse
5、dbytwoinstrumentsdetermination(shearmethodandtextureprofileanalysis(TPA)andalsobysensoryevaluation.Astheresults,sensoryhardnes,springines,juicinessofthemeatdecreasedsignificantly(P<0.05)asthetenderizationtimeduration.AIso,thetoughness,shearforceandmeanshearforcethatweremeasuredb
6、yshearmethoddeclinedsignificantly(P<0.05)onthe1~3d.However,thespringinessandadhesivenessofTPAsignificantly(P<0.05)increasedonthe1~3d,andthehardnessandchewinessfelldownsignificantly(P<0.05)onthe3~6d,andresilienceincreasedsignificantly(P<0.05)onthe6d,butcohesivenesshadnochangeswit
7、hthedurationofthetenderizationtime.Thisstudyanalyzedthechangelawsofthetexturecharacteristicsandthesensorypropertiesoftheporkindifferenttimetotenderization,combiningwithinstrumentalandsensoryevaluation.Thisstudyprovidesascientificbasistooptimizethetenderizationmatureprocessofthep
8、ork.Keywords:lowtemperaturetenderization;pork;t