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Start Over Author "Martin-Pelaez S" Topic dietary fibre
2 results on '"Martin-Pelaez S"'

1. Potential prebiotic activity of oligosaccharides obtained by enzymatic conversion of durum wheat insoluble dietary fibre into soluble dietary fibre.

Author

Napolitano, A., Costabile, A., Martin-Pelaez, S., Vitaglione, P., Klinder, A., Gibson, G.R., and Fogliano, V.

Abstract

Abstract: Background and aims: Epidemiological evidence indicates that cereal dietary fibre (DF) may have several cardiovascular health benefits. The underlying mechanisms have not yet been elucidated. Here, the potential nutritional effects of physico-chemical properties modifications of durum wheat dietary fibre (DWF) induced by enzyme treatment have been investigated. Methods and results: The conversion of the highly polymerised insoluble dietary fibre into soluble feruloyl oligosaccharides of DWF was achieved by a tailored enzymatic treatment. The in vitro fermentation and release of ferulic acid by intestinal microbiota from DWF before and after the enzymatic treatment were assessed using a gut model validated to mimic the human colonic microbial environment. Results demonstrated that, compared to DWF, the enzyme-treated DWF (ET-DWF) stimulated the growth of bifidobacteria and lactobacilli. Concurrently, the release of free ferulic acid by ET-DWF was almost three times higher respect to the control. No effect on the formation of short chain fatty acids was observed. Conclusions: The conversion of insoluble dietary fibre from cereals into soluble dietary fibre generated a gut microbial fermentation that supported bifidobacteria and lactobacilli. The concurrent increase in free ferulic acid from the enzyme-treated DWF might result in a higher plasma ferulic acid concentration which could be one of the reasons for the health benefits reported for dietary fibre in cardiovascular diseases. [Copyright &y& Elsevier]

Published
2009
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2. Potential prebiotic activity of oligosaccharides obtained by enzymatic conversion of durum wheat insoluble dietary fibre into soluble dietary fibre

Author

Annett Klinder, Glenn R. Gibson, Adele Costabile, S. Martín-Peláez, Aurora Napolitano, Vincenzo Fogliano, Paola Vitaglione, Napolitano, A, Costabile, A, Martin Pelaez, S, Vitaglione, Paola, Klinder, A, Gibson, Gr, and Fogliano, Vincenzo

Subjects
Dietary Fiber, Coumaric Acids, Colon, Endocrinology, Diabetes and Metabolism, medicine.medical_treatment, Medicine (miscellaneous), Oligosaccharides, antioxidant cereal dietary fiber, Coumaric acid, Ferulic acid, chemistry.chemical_compound, Hydrolysis, Feces, Bifidobacteria, cardiovascular disease, Lactobacillus, medicine, Humans, Food science, Triticum, Bifidobacterium, Trichoderma, Nutrition and Dietetics, biology, Prebiotic, Dietary fibre, food and beverages, Hydrogen-Ion Concentration, biology.organism_classification, gut health, Cardiovascular diseases, chemistry, Biochemistry, Dietary Supplements, Fermentation, Nutrition physiology, Cardiology and Cardiovascular Medicine, prebiotic activity
Abstract

Background and aims Epidemiological evidence indicates that cereal dietary fibre (DF) may have several cardiovascular health benefits. The underlying mechanisms have not yet been elucidated. Here, the potential nutritional effects of physico-chemical properties modifications of durum wheat dietary fibre (DWF) induced by enzyme treatment have been investigated. Methods and results The conversion of the highly polymerised insoluble dietary fibre into soluble feruloyl oligosaccharides of DWF was achieved by a tailored enzymatic treatment. The in vitro fermentation and release of ferulic acid by intestinal microbiota from DWF before and after the enzymatic treatment were assessed using a gut model validated to mimic the human colonic microbial environment. Results demonstrated that, compared to DWF, the enzyme-treated DWF (ET-DWF) stimulated the growth of bifidobacteria and lactobacilli. Concurrently, the release of free ferulic acid by ET-DWF was almost three times higher respect to the control. No effect on the formation of short chain fatty acids was observed. Conclusions The conversion of insoluble dietary fibre from cereals into soluble dietary fibre generated a gut microbial fermentation that supported bifidobacteria and lactobacilli. The concurrent increase in free ferulic acid from the enzyme-treated DWF might result in a higher plasma ferulic acid concentration which could be one of the reasons for the health benefits reported for dietary fibre in cardiovascular diseases.

Published
2009

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