Supplementation of pig diet with algal fibre changes the chemical and physicochemical characteristics of digesta
| Autor: | Emily Worthington, C. Hoebler, Marc Lahaye, Béatrice Darcy-Vrillon, J.-L. Barry, Pierre-Henri Duée, P. Vaugelade, Fabienne Guillon |
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| Přispěvatelé: | ProdInra, Migration, Unité de recherche Fonctions Digestives et de Nutrition Humaines (UFDNH), Institut National de la Recherche Agronomique (INRA), Laboratoire de biochimie et technologie des glucides, Laboratoire de nutrition et sécurité alimentaire |
| Rok vydání: | 2000 |
| Předmět: |
2. Zero hunger
Eucheuma animal structures Nutrition and Dietetics biology [SDV.IDA] Life Sciences [q-bio]/Food engineering biology.organism_classification Laminaria digitata Carrageenan Caecum chemistry.chemical_compound Palmaria palmata chemistry Biochemistry [SDV.IDA]Life Sciences [q-bio]/Food engineering Dry matter Fermentation Food science Cellulose Agronomy and Crop Science ComputingMilieux_MISCELLANEOUS Food Science Biotechnology |
| Zdroj: | Journal of the Science of Food and Agriculture Journal of the Science of Food and Agriculture, Wiley, 2000, 80, pp.1357-1364 |
| ISSN: | 1097-0010 0022-5142 |
| DOI: | 10.1002/1097-0010(200007)80:9<1357::aid-jsfa657>3.0.co;2-b |
| Popis: | Seaweed extracts, because of their physicochemical characteristics and potential nutritional value, could provide a new source of dietary fibre. This study investigated changes in seaweed fibres (physicochemical and fermentative properties) in different digestive sites and their effects on digesta (viscosity and hydration properties). Sixteen pigs were adapted to a test diet supplemented with 5% algal fibre (either Palmaria palmata (PP), a poorly viscous soluble xylan; or Eucheuma cottonii (EC), a partly insoluble carrageenan; or Laminaria digitata (LD), a highly viscous soluble alginate) or 5% cellulose (reference fibre). PP did not modify the characteristics of digesta and was fermented in the caecum (pH 6.1 ± 0.4; short-chain fatty acids measured in digesta, 1409 ± 691 µmol g−1 dry matter). EC and LD were mainly insoluble in the stomach, becoming soluble in the intestine; EC was slightly fermented in the colon, giving a low concentration of short-chain fatty acids (303 ± 122 µmol g−1 dry matter). Supplementation of the diet with alginate (LD) increased 3.5-fold the ileal viscosity of digesta and their hydration capacity in the ileum and colon. Thus the physicochemical properties of pig digesta largely depend on the physicochemical properties of the ingested seaweed fibre, the pH and ionic conditions prevailing in the gut, and their fermentability. © 2000 Society of Chemical Industry |
| Databáze: | OpenAIRE |
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