Abstract
In this study, the in vitro fermentation by piglet fecal inoculum of galacto-oligosaccharides (GOS) and porcine milk oligosaccharides (PMOs) was investigated to identify possible preferences for individual oligosaccharide structures by piglet microbiota. First, acidic PMOs and GOS with degrees of polymerization 4-7 were depleted within 12 h of fermentation, whereas fucosylated and phosphorylated PMOs were partially resistant to fermentation. GOS structures containing β1-3 and β1-2 linkages were preferably fermented over GOS containing β1-4 and β1-6 linkages. Upon in vitro fermentation, acetate and butyrate were produced as the main organic acids. GOS fermentation by piglet inoculum showed a unique fermentation pattern with respect to preference of GOS size and organic acids production.
Original language | English |
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Pages (from-to) | 2127-2133 |
Journal | Journal of Agricultural and Food Chemistry |
Volume | 64 |
Issue number | 10 |
DOIs | |
Publication status | Published - 2016 |
Keywords
- fibers
- gas chromatography
- human fermentation
- liquid chromatography
- nondigestible carbohydrates
- organic acids
- short-chain fatty acids
- sugars