Barile Daniela, Tao Nannan, Lebrilla Carlito B, Coisson Jean-Daniel, Arlorio Marco, German J Bruce
Department of Food Science and Technology, University of California, Davis, CA 95616, USA.
Int Dairy J. 2009 Sep 1;19(9):524-530. doi: 10.1016/j.idairyj.2009.03.008.
Previously undescribed oligosaccharides in bovine cheese whey permeate were characterized by a combination of nanoelectrospray Fourier Transform Ion Cyclotron Resonance (nESI-FTICR) mass spectrometry and matrix-assisted laser desorption/ionization Fourier transform ion cyclotron resonance (MALDI-FTICR) mass spectrometry. Oligosaccharide composition was elucidated by collision-induced dissociation within the ICR cell. In addition to sialyllactose (the most abundant oligosaccharide in bovine colostrum), we identified 14 other oligosaccharides, half of which have the same composition of human milk oligosaccharides. These oligosaccharides could potentially be used as additives in infant formula and products for the pharmaceutical industry. Because whey permeate is a by-product from the production of whey protein concentrate (WPC) and is readily available, it is an attractive source of oligosaccharides for potential application in human nutrition.
通过纳米电喷雾傅里叶变换离子回旋共振(nESI-FTICR)质谱和基质辅助激光解吸/电离傅里叶变换离子回旋共振(MALDI-FTICR)质谱相结合的方法,对牛乳清渗透液中以前未描述的低聚糖进行了表征。通过在ICR细胞内的碰撞诱导解离来阐明低聚糖的组成。除了唾液乳糖(牛乳初乳中最丰富的低聚糖)外,我们还鉴定出了其他14种低聚糖,其中一半与人乳低聚糖的组成相同。这些低聚糖有可能用作婴儿配方奶粉和制药行业产品中的添加剂。由于乳清渗透液是生产乳清蛋白浓缩物(WPC)的副产品,且易于获得,因此它是一种有吸引力的低聚糖来源,有可能应用于人类营养领域。