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时间:2020-04-23
《不同预处理对低温脱脂豆粕中大豆β-伴球蛋白功能性质的影响-论文.pdf》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、现代食品科技ModernFoodScienceandTechnology2014,Vo1.30,No.8不同预处理对低温脱脂豆粕中大豆一伴球蛋白功能性质的影响吴伟’,蔡勇建’,梁盈’,林亲录,邓克权,华欲飞。(1.中南林业科技大学食品科学与3-程学院,湖南长沙410004)(2.中粮东海粮油工业有限公司,江苏张家港215634)(3.江南大学食品学院,江苏无锡214122)摘要:采用新鲜低温脱脂豆粕、干热处理脱脂豆粕和溶剂浸提脱脂豆粕为原料制备大豆B.伴球蛋白,研究预处理对低温脱脂豆粕残余脂质含量和脂肪氧合酶酶活以及制备大豆B.伴球蛋白功能
2、性质的影响。干热处理对低温脱脂豆粕中残余脂质含量无显著影响,但可使得脂肪氧合酶酶活下降7.69%;溶剂浸提使得低温脱脂豆粕中残余脂质含量和脂肪氧合酶酶活分别下降98.08%和96.12%,表明溶剂浸提可显著抑制低温脱脂豆粕中脂质过氧化反应的发生。干热处理低温脱脂豆粕使得制备大豆B.伴球蛋白溶解陛、持帕陛、持油性、乳化性、起泡性以及凝胶性质变差,溶剂浸提低温脱脂豆粕可改善制备大豆6.伴球蛋白溶解性、持抽陛、持油性、乳化性、起泡性和凝胶性质。这一研究结果为改善大豆蛋白功能性质提供前期研究基础。关键词:低温脱脂豆粕;大豆伴球蛋白;功能性质;蛋白质
3、氧化文章篇号:1673.9078(2014)8.25.30Effect0fPretreatment0fDefattedSoybeanMeal0nFunctionalPropertiesp—conglycininWUwi,CAIYong-jian,LIANGYing,LINQin-lu,DENGKe-quan,HuAYu.fei3(1.SchoolofFoodScienceandEngineering,CentralSouthUniversityofForestryandTechnology,Changsha410004,China)(2.C
4、OFCOEastoceanOilsandGrainsIndustriesCo.Ltd.,Zhangjiagang215634,China)(3.SchoolofFoodScienceandTechnology,JiangnanUniversity,Wuxi214122,China)Abstract:Soybeanfl-conglycininwaspreparedfrom疗eshdefa~edsoybeanmea1.dry-heattreateddefa~edsoybeanmealandsolventextractionofdefa~edso
5、ybeanmea1.Theefectsofpretreatmentonresiduallipidcontent,lipoxygenaseactivityofdefaRedsoybeanmealandthefunctionalpropertiesofpreparedsoybeanfl-conglycininwereinvestigated.Dry-heattreatmentdidnotresultinsignificantchangesinresiduallipidcontent;however,lipoxygenaseactivitydec
6、reasedby7.69%.Solventextractiontreatmentledtoasignificantdecreaseintheresiduallipidcontentandlipoxygenaseactivityby98.08%and96.12%,respectively,indicatingthatsolventextractioncouldsignificantlyinhibitlipidperoxidationofdefattedsoybeanmea1.Dry-heattreatmentalsocausedadecrea
7、seinsolubility,water-holdingcapacity,oil-holdingcapacity,emulsifyingproperties,foamingproperties,andgellingpropertiesofthepreparedsoybeanfl-conglycinin.Thesefunctionalpropertiesofsoybeanfl-conglycininshowedanimprovementwhendefattedsoybeanmealwastreatedwithsolventextraction
8、.Theseresultsprovideapreliminarybasistoimprovethefunctionalpropertiesofsoybeanprotein.Key
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