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Composition and starch digestibility of whole grain bars containing maize or unripe banana flours

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Author

  • Rubi G. Utrilla-Coello
  • Edith Agama-Acevedo
  • Perla Osorio-Diaz
  • Juscelino Tovar
  • Luis A. Bello-Perez

Summary, in English

The development of functional foods with low glycemic index and high levels of RS are of importance in the fight against the rapidly increasing rates of obesity and chronic diseases in modern societies. In this work, three cereal bars containing white maize, blue maize, or unripe banana flours were prepared. The proximal composition, in vitro starch digestibility and product acceptability were evaluated. The bar prepared with blue maize exhibited the highest level of protein and fat, and that containing white maize the highest dietary fiber and indigestible fraction contents. However, the product prepared with unripe banana flour showed the highest total and rapidly digestible starch levels, while that added with blue maize exhibited greater slowly digestible starch values. No difference in RS content was detected among the three bars. The starch hydrolysis indices and predicted glycemic indices of the three preparations were low (40-54% and 42-54%, respectively). Similar acceptation scores were recorded for the three experimental bars. Cereal bars with variable starch digestibility features and good acceptation by consumers may be prepared following the proper choice of functional ingredients.

Department/s

  • Food for Health Science Centre

Publishing year

2011

Language

English

Pages

416-423

Publication/Series

Stärke

Volume

63

Issue

7

Document type

Journal article

Publisher

John Wiley & Sons Inc.

Topic

  • Food Science
  • Health Sciences

Keywords

  • Chemical composition
  • Dietary fiber
  • Indigestible fraction
  • Starch
  • digestion
  • Whole cereal

Status

Published

ISBN/ISSN/Other

  • ISSN: 0038-9056