Journal
JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE
Volume 92, Issue 10, Pages 2133-2140Publisher
WILEY-BLACKWELL
DOI: 10.1002/jsfa.5597
Keywords
ancient wheat; durum wheat; prebiotic; probiotic; soluble dietary fibres
Funding
- 'Fondazione del Monte di Bologna e Ravenna', Italy
- Kamut International, USA
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BACKGROUND: Wheat grains are a rich source of dietary fibres, particularly in the western human diet. Many of the health effects attributed to dietary fibres are believed to be related to their microbial fermentation in the gut. This study evaluated the ability of two potentially probiotic strains, Lactobacillus plantarum L12 and Bifidobacterium pseudocatenulatum B7003, to ferment soluble dietary fibres (SDFs) from modern and ancient durum-type wheat grains. RESULTS: Fibre microbial utilisation was highly variable and dependent on the strain. SDFs from the varieties Svevo and Solex supported the growth of L. plantarum L12 the best, whereas those from the varieties Anco Marzio, Solex and Kamut (R) Khorasan were good carbohydrate substrates for B. pseudocatenulatum B7003. The highest prebiotic activity scores (describing the extent to which prebiotics support selective growth of probiotics) for B7003 were obtained with SDFs from the varieties Solex (0.57), Kamut (R) Khorasan (0.56) and Iride (0.55), whereas for L12 the highest scores were achieved with the varieties Orobel (0.63), Kamut (R) Khorasan (0.56) and Solex (0.53). CONCLUSION: The present study has identified some SDFs from durum-type wheat grains as suitable prebiotic substrates for the selective proliferation of B. pseudocatenulatum B7003 and L. plantarum L12 in vitro. The results provide the basis for the potential utilisation of wheat-based prebiotics as a component of synbiotic formulations. Copyright (C) 2012 Society of Chemical Industry
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