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现代食品科技ModernFoodScienceandTechnology2016,Vol.32,No.1 豆类淀粉对鲢鱼鱼糜凝胶特性的影响 余永名,马兴胜,仪淑敏,邵珍,徐永霞,励建荣 (渤海大学食品科学与工程学院,辽宁锦州121013) 摘要:本文研究了豌豆淀粉、绿豆淀粉和马铃薯淀粉对鲢鱼鱼糜凝胶特性的影响。分析了添加不同含量淀粉时,鲢鱼鱼糜的凝 胶强度、持水性、蒸煮损失、横向弛豫时间(T2)和微观结构的变化规律。结果表明,添加8%,10%的马铃薯淀粉或绿豆淀粉均可 以显著增加鲢鱼鱼糜的凝胶强度、持水性,同时明显降低蒸煮损失。低场核磁共振显示,淀粉对鱼糜凝胶的横向弛豫时间T21和T22 影响较小,对T23和T24的影响较大,尤其添加10%的马铃薯淀粉或绿豆淀粉均可以显著降低凝胶的T23和T24,减弱凝胶中不易移动 水的流动性。与马铃薯淀粉和绿豆淀粉相比,豌豆淀粉在添加量为4%时便可以显著增强鱼糜制品的凝胶强度和持水性,同时明显降 低其蒸煮损失、横向弛豫时间T23和T24。添加马铃薯淀粉(10%)、绿豆淀粉(10%)或者豌豆淀粉(4%)后的鲢鱼鱼糜凝胶均可以 形成相当均匀、致密的空间凝胶网络结构。 关键词:鱼糜;豆类淀粉;凝胶强度;持水性;蒸煮损失;三维网络结构 文章篇号:1673-9078(2016)1-129-135DOI:10.13982/j.mfst.1673-9078.2016.1.021 EffectofBeanStarchesontheGelPropertiesofSilverCarpSurimi YUYong-ming,MAXing-sheng,YIShu-min,SHAOZhen,XUYong-xia,LIJian-rong (CollegeofFoodScienceandEngineering,BohaiUniversity,Jinzhou121013,China) Abstract:Theeffectofpeastarch,greenbeanstarch,andpotatostarchonthegelpropertiesofsilvercarpsurimiwereinvestigatedinthis study.Thechangesofgelstrength,waterholdingcapacity(WHC),cookingloss,transverserelaxationtime(T2),andmicrostructureofthesurimi gelinthepresenceofdifferentamountsofaddedstarcheswereanalyzed.Theresultsshowedthattheadditionof8%or10%potatostarchor greenbeanstarchsignificantlyincreasedthegelstrengthandWHCofsilvercarpsurimigel,andreducedcookingloss.Theresultsoflowfield nuclearmagneticresonance(LF-NMR)showedthatstarcheshadagreaterimpactontransverserelaxationtimes(T23,T24)thanontransverse relaxationtimes(T21,T22)ofsurimigel.Especially,theadditionof10%potatostarchorgreenbeanstarchsignificantlydecreasedT23andT24of thesurimigelandweakenedthemobilityofimmobilizedwater.Comparedwithpotatostarchorgreenbeanstarch,peastarchsignificantly improvedthegelpropertiesofsilvercarpsurimiwithanaddedamountofonly4%,whilecookingloss,T23,andT24weresignificantlyreduced. Withanadditionof10%potatostarch,10%greenbeanstarch,or4%peastarch,ahighlyuniformandcompactgelnetworkstructurewas formedinsilvercarpsurimi. Keywords:surimi;beanstarch;gelstrength;waterholdingcapacity;cookloss;three-