Exploring the Role of Cereal Dietary Fiber in Digestion

Gouseti, O.; Lovegrove, A.; Kosik, O.; Fryer, P.J.; Mills, C.; Gates, F.; Tucker, G.; Latty, C.; Shewry, P.; Bakalis, S.

Abstract

Increasing the dietary fiber of staple foods such as bread is an attractive way to promote healthy eating in a large part of the population, where dietary fiber consumption is reportedly below the recommended values. However, many consumers prefer white breads, which are typically low in dietary fiber. In this work, white bread was made from two wheat cultivars with differing fiber contents. The resulting breads showed similar quality parameters (volume, specific volume, firmness, inner structure characteristics) with any differences maintained below 7%. Bread digestibility was evaluated using a novel dynamic in vitro digestion model. Reduced digestion rates of 30% were estimated for the high-fiber white bread compared to that in the control. Overall, this work demonstrates the potential to produce healthy, high-fiber white breads that are acceptable to consumers, with a reduced rate of starch digestion, by exploiting a genetic variation in the dietary fiber content of wheat cultivars.

Citation

Gouseti, O., Lovegrove, A., Kosik, O., Fryer, P., Mills, C., Gates, F., …Bakalis, S. (2019). Exploring the Role of Cereal Dietary Fiber in Digestion. Journal of Agricultural and Food Chemistry, 67(30), 8419-8424. https://doi.org/10.1021/acs.jafc.9b01847

• Journal Article Type: Article
• Acceptance Date: Jul 3, 2019
• Online Publication Date: Jul 3, 2019
• Publication Date: Jul 31, 2019
• Deposit Date: Aug 28, 2019
• Publicly Available Date: Aug 28, 2019
• Journal: Journal of Agricultural and Food Chemistry
• Print ISSN: 0021-8561
• Electronic ISSN: 1520-5118
• Publisher: American Chemical Society
• Peer Reviewed: Peer Reviewed
• Volume: 67
• Issue: 30
• Pages: 8419-8424
• DOI: https://doi.org/10.1021/acs.jafc.9b01847
• Keywords: arabinoxylan, wheat, high fiber bread, in vitro dynamic digestion
• Public URL: https://nottingham-repository.worktribe.com/output/2466965
• Publisher URL: https://pubs.acs.org/doi/10.1021/acs.jafc.9b01847