Abstract
A mixture of oligosaccharides produced by β-galactosidase using lactose as a substrate was fractionated according to degree of polymerization using gel filtration, followed by high-pH anion-exchange chromatography. The fractions obtained were analyzed using monosaccharide analysis, methylation analysis, mass spectrometry, and NMR spectroscopy. Twelve novel non-reducing oligosaccharides were characterized, namely, [β-D-Galp-(1→4)](n)-α-D-Glcp-(1⇆1)-β-D-Galp[-(4←1)-β-D-Galp](m), with n, m=(1, 2, 3, or 4) and β-D-Galp-(1→2)-α-D-Glcp-(1⇆1)-β-D-Galp. Copyright (C) 1998 Elsevier Science Ltd.
Original language | English |
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Pages (from-to) | 101-114 |
Number of pages | 14 |
Journal | Carbohydrate Research |
Volume | 314 |
Issue number | 1-2 |
DOIs | |
Publication status | Published - 21 Dec 1998 |
Keywords
- β-Galactosidase
- Functional food
- Non-reducing galacto-oligosaccharides
- Oligogalactosylated glucoses
- Primary structure analysis
- Transgalactosylation
- beta galactosidase
- lactose
- oligosaccharide
- anion exchange chromatography
- article
- carbohydrate analysis
- carbohydrate synthesis
- chemical modification
- gel filtration chromatography
- mass spectrometry
- methylation
- nuclear magnetic resonance spectroscopy
- polymerization
- priority journal
- reaction analysis