Dietary Fibre Components of Four Common Nigerian Dioscorea Species

Authors

  • A.E. Abara Department of Chemical Sciences, Cross River University of Technology, Calabar, Nigeria
  • E.N. Tawo Department of Chemical Sciences, Cross River University of Technology, Calabar, Nigeria
  • M.E. Obi-Abang Department of Chemical Sciences, Cross River University of Technology, Calabar, Nigeria
  • G.O. Obochi Department of Biochemistry, Benue State University, Makurdi, Nigeria

DOI:

https://doi.org/10.3923/pjn.2011.383.387

Keywords:

Cellulose and lignin, Dioscorea, fibre, hemicellulose

Abstract

Four common Dioscorea species were analyzed for dietary fibre components viz, hemicellulose, cellulose and lignin as well as Neutral Detergent Fibre (NDF) and Acid Detergent Fibre (ADF) in the raw and cooked samples. The dietary fibre components in the raw and cooked samples in all the four yam species namely Disocorea bulbifera, Dioscorea alata, Dioscorea cayenenis and Dioscorea rotundata were found to be low ranging from 1.20-2.59% for NDF, 1.06-2.22% for ADF, 0.10-0.27% for hemicellulose, 0.07-1.13% for cellulose and 0.08-0.27% for lignin. There was no significant change (p<0.05) in the content of dietary fibre components of the yam samples upon cooking. In spite of the low levels of fibre in the yam species analyzed, yams may constitute a significant source of fibre for many in Nigeria and the tropics generally since they are a common staple and are widely consumed on a daily basis.

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Published

15.03.2011

Issue

Vol. 10 No. 4 (2011)

Section

Research Article

License

Copyright (c) 2011 Asian Network for Scientific Information

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution and reproduction in any medium, provided the original author and source are credited.

How to Cite

Abara, A., Tawo, E., Obi-Abang, M., & Obochi, G. (2011). Dietary Fibre Components of Four Common Nigerian Dioscorea Species. Pakistan Journal of Nutrition, 10(4), 383–387. https://doi.org/10.3923/pjn.2011.383.387