Production of a novel ingredient from buttermilk
Production of a novel ingredient from buttermilk
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DOI：
10.3168/jds.s0022-0302(03)73870-3
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发表时间：
2003-09-01
影响因子：
3.5
通讯作者：
Dalgleish, DG
中科院分区：
文献类型：
--
作者：
Corredig, M;Roesch, RR;Dalgleish, DG
来自乳脂球膜（MFGM）的物质的存在使酪乳（黄油制造的副产品）不同于任何其他乳制品。对商业酪乳进行膜过滤以获得富含MFGM材料的分离物。MFGM与商业酪乳中存在的脱脂乳蛋白的分离是通过加入柠檬酸钠，然后通过0.1 μ m标称孔径的膜进行微滤来进行的。柠檬酸钠引起酪蛋白胶束的解离，并允许大比例的脱脂乳衍生蛋白通过膜渗透。该方法成功地浓缩了渗余物中的MFGM材料，并证明膜过滤可用于从商业酪乳中生产MFGM级分。鉴于最近的研究表明磷脂在许多健康相关功能中的作用，利用来自酪乳的MFGM分离物越来越重要：酪乳是这些功能成分的未开发资源。
The presence of material derived from the milk fat globule membrane (MFGM) makes buttermilk (the by-product of butter making) distinct from any other dairy product. Membrane filtration of commercial buttermilk was carried out to obtain isolates rich in MFGM material. The separation of MFGM from the skim milk proteins present in commercial buttermilk was carried out by the addition of sodium citrate followed by microfiltration through a membrane of 0.1-mum nominal pore size. The sodium citrate caused the dissociation of casein micelles and allowed permeation of a large proportion of the skim-milk derived proteins through the membrane. This process successfully concentrated MFGM material in the retentate, and demonstrated that membrane filtration can be employed to produce MFGM fractions from commercial buttermilk. The utilization of MFGM isolates from buttermilk is of increasing importance in light of recent studies suggesting the role of phospholipids in many health-related functions: buttermilk is an untapped resource of these functional components.