磨浆及浆渣分离条件对豆腐皮产率的影响  

Effect of Milling and Filtration Methods on Yield of Dried Soybean Sheet

作　　者：黄颖颖[1,2] 陈慎[1,2] 杨成龙[1,2] 陆东和[1,2] 

机构地区：[1]福建省农业科学院农业工程技术研究所,福建福州350003 [2]福建省农产品(食品)加工重点实验室,福建福州350003

出　　处：《福建农业学报》2015年第9期905-909,共5页Fujian Journal of Agricultural Sciences

基　　金：福建省科技计划星火重点项目(2013S0046);福建省科技计划项目--省属公益类科研院所基本科研专项(2010R1017-2);人力资源和社会保障部留学人员科技活动项目[人社厅函[2014]240号];科技部科技型中小企业技术创新基金项目(12C26243503676;13C26243502984)

摘　　要：对影响豆腐皮形成的因素进行探讨,研究传统砂磨与胶体磨、料水比、磨浆次数及细度对出浆率的影响;通过正交试验表明:采用多级分离技术进行连续浆渣分离处理,即第1次采用砂轮磨磨浆,加水量为干大豆重量的4.5倍,浆液通过80目绢布过滤后得所需豆浆,第2次采用胶体磨磨浆,加水量为干大豆重量的3.5倍,随后浆液通过100目绢布过滤后得所需豆浆,能充分提取豆渣中的蛋白质,提高大豆可溶性成分的得率和产品品质,其豆腐皮产率达56.3%。Despite efforts attempting to increase the protein extraction rate from soybeans in dried soybean sheet production,the recovery rate remains less than 50%.This article reviews the factors affecting the yield,and presents the results from our experimentation targeted at the soybean-milling and slurry-filtration of the protein extraction prior to sheet formation.The traditional sand and colloid grinder milling methods,ratio of soybeans to water,milling time and particle size were examined.The orthogonal experimentalresults showed that a multiple stage separation should be used for the process.A maximized protein recovery could be obtained by a two-stage filtration：firstly,using the sand milling with a water/soybean ratio of 4.5/1to grind the soybeansfollowed by filtration through a 80 mesh silk cloth;then,applying the colloid grinder with a water/milled slurry ratio of 3.5/1followed by filtration through a 100 mesh silk cloth to collect the soy milk for sheet-making.The yield of soluble matters and quality of soy milk were significantly increased resulting in 56.3%increase on the dried soybean sheets.

关 键 词：豆腐皮产率 浆渣分离 胶体磨 出浆率 

分 类 号：TS214.2[轻工技术与工程—粮食、油脂及植物蛋白工程]