Abstract
Hazelnut skins are a good example of agricultural by-product with the potential to become a valuable source of functional ingredients. In this work, the fibre from hazelnut skins was extracted by using water and alkali solution and characterised by a suite of analytical tools (MALDI-FTICR, nano LC-Chip-Q-ToF and gas chromatography). Over thirty complex free oligosaccharides, composed mainly of galacturonic acid and N- acetylgalactosamine, were characterised for the first time in the present study. Their concentration ranged between 16 and 34 mg per g of extract. The oligosaccharides isolated from this agricultural by-product are mainly hexose oligosaccharides (potentially galacto-oligosaccharides,) and xyloglucans. The identified composition could justify the bioactive activity of the extracts, namely prebiotic activity, previously demonstrated.
Lingua originale | Inglese |
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pagine (da-a) | 717-725 |
Numero di pagine | 9 |
Rivista | Food Chemistry |
Volume | 140 |
Numero di pubblicazione | 4 |
DOI | |
Stato di pubblicazione | Pubblicato - 15 ott 2013 |