酸溶性三文鱼皮胶原蛋白超滤脱盐的研究  

Application of ultrafiltration in the desalination process of acid- soluble collagen from salmon shin

作　　者：张雄[1] 李云雁[1] 张凯[1] 张大明[1] 胡玉霞[1] 汪海波[1] 

机构地区：[1]武汉轻工大学化学与环境工程学院,湖北武汉430023

出　　处：《食品工业科技》2014年第21期69-72,76,共5页Science and Technology of Food Industry

基　　金：国家自然科学基金项目(21376183);武汉市应用基础研究项目(2013020501010177);湖北省高等学校优秀中青年科技创新团队计划项目(T201208);武汉轻工大学大学生科研立项项目(xsky015)

摘　　要：本研究采用了超滤膜分离技术,对三文鱼皮酸溶性胶原蛋白(ASC)进行了脱盐提纯的研究。研究了聚偏氟乙烯(PVDF)超滤膜对不同浓度胶原蛋白溶液的截留效果,当胶原溶液质量分数为1.2%时,截留率为90%;还讨论了胶原溶液质量分数、超滤操作压强、料液初始温度和超滤次数对脱盐效果的影响。结果表明,随着料液浓度降低、压力增大、料液初始温度升高(≤30℃)、超滤次数增多,脱盐率越高。当料液初始浓度为1.2%,温度为30℃,压力为0.3MPa,超滤7次时,氯离子脱除率可达到74.4%。Ultrafiltration was applied in the desalination process of acid-soluble collagen （ASC）from salmon skin. Polyvinylidene fluoride（PVDF）membrane was used in the study for the desalination of collagen solutions with different concentration,when the mass concentration was 1.2%, the rejection rate was 90%.The effect of collagen solution concentration, operation pressure, feed temperature and washing times on desalination process were investigated. Results showed that with the decreasing of solution concentration, increasing of pressure, feed temperature（≤ 30℃） and washing times, higher desalination rate could be gotten. When the collagen mass concentration was 1.2%, feed temperature 30℃, pressure 0.3 M Pa and washing times 7, chloridion removal rate was 74.4%.

关 键 词：三文鱼皮 酸溶性胶原蛋白 超滤 脱盐 

分 类 号：TS254[轻工技术与工程—水产品加工及贮藏工程]