食品科学 ›› 2019, Vol. 40 ›› Issue (23): 130-136.doi: 10.7506/spkx1002-6630-20181224-282

• 食品工程 • 上一篇    下一篇

基于陶瓷膜技术的羊乳酪蛋白和其他组分的高效分级分离

姜竹茂,杨宝雨,芦晶,逄晓阳,吴政,岳元春,王童,Eman Saad RAGAB,张书文,吕加平   

  1. (1.烟台大学生命科学学院,山东 烟台 264000;2.中国农业科学院农产品加工研究所,北京 100193)
  • 出版日期:2019-12-15 发布日期:2019-12-24
  • 基金资助:
    “十三五”国家重点研发计划重点专项(2018YFD0400905);国家自然科学基金面上项目(31871834); 现代农业产业技术体系建设北京市奶牛产业创新团队项目

High-Efficiency Separation of Goat Milk Casein and Other Components Using Ceramic Membrane Technology

JIANG Zhumao, YANG Baoyu, LU Jing, PANG Xiaoyang, WU Zheng, YUE Yuanchun, WANG Tong, Eman Saad RAGAB, ZHANG Shuwen, Lü Jiaping   

  1. (1. College of Life Sciences, Yantai University, Yantai 264000, China; 2. Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing 100193, China)
  • Online:2019-12-15 Published:2019-12-24

摘要: 为量化0.05 μm陶瓷膜脱除羊乳中乳清蛋白、乳糖、灰分、钙和磷的能力,在50 ℃条件下,脱脂乳进行3 倍浓缩,之后2 次间歇补水至原体积进行清洗过滤,最终得到1 份截留液、3 份透过液,并计算各组分总脱除率。结果表明:乳清蛋白脱除率为96.17%,乳糖脱除率为86.42%,灰分脱除率为73.39%,钙脱除率为34.90%,磷脱除率为55%。稀释过滤完毕后膜的纯水膜通量衰减系数为55.57%,使用质量分数为2%氢氧化钠和1%的硝酸溶液进行清洗,膜通量的恢复系数为99.21%。0.05 μm陶瓷膜可以实现羊乳酪蛋白和其他组分的有效分离,该技术适合在没有干酪乳清的条件下,以生鲜乳为原料加工酪蛋白胶束粉、乳清蛋白粉、乳糖等乳基配料产品。

关键词: 微滤, 陶瓷膜, 羊乳, 分离, 乳清蛋白, 酪蛋白

Abstract: The objective of this study was to quantify the capacity of a ceramic microfiltration (MF) membrane with a pore size of 0.05 μm to remove whey proteins, lactose, ash, calcium and phosphorus from skim goat milk. Skim goat milk was concentrated three times by microfiltration at 50 ℃, and then the resultant fraction was diluted to the original volume followed by three-fold concentration under the same condition as for skim goat milk. The same treatment was conducted on the fraction obtained from the second microfiltration. During the whole process, the cumulative removal percentages of whey proteins, lactose, ash, calcium and phosphorus calculated from three filtrates were 96.17%, 86.42%, 73.39%, 34.9% and 55%, respectively. After the second filtration, the pure water flux of the membrane was reduced by 55.57%, and the membrane flux was restored to 99.21% of the initial level after cleaning the membrane with 2% NaOH and 1% nitric acid solution. Ceramic membrane with 0.05 μm pore size was effective for the separation of casein and other components.Therefore, this technology is suitable for processing casein micelle powder, whey protein powder, lactose and other milk-based products from fresh milk without cheese whey.

Key words: microfiltration, ceramic membrane, goat milk, separation, whey protein, casein

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