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Review article - Peer-reviewed, 2014

Plant prebiotics and human health: Biotechnology to breed prebiotic-rich nutritious food crops

Dwivedi, Sangam L.; Sahrawat, Kanwar; Puppala, Naveen; Ortiz Rios, Rodomiro Octavio

Abstract

Microbiota in the gut play essential roles in human health. Prebiotics are non-digestible complex carbohydrates that are fermented in the colon, yielding energy and short chain fatty acids, and selectively promote the growth of Bifidobacteria and Lactobacillae in the gastro-intestinal tract. Fructans and inulin are the best-characterized plant prebiotics. Many vegetable, root and tuber crops as well as some fruit crops are the best-known sources of prebiotic carbohydrates, while the prebiotic-rich grain crops include barley, chickpea, lentil, lupin, and wheat. Some prebiotic-rich crop germplasm have been reported in barley, chickpea, lentil, wheat, yacon, and Jerusalem artichoke. A few major quantitative trait loci and gene-based markers associated with high fructan are known in wheat. More targeted search in genebanks using reduced subsets (representing diversity in germplasm) is needed to identify accessions with prebiotic carbohydrates. Transgenic maize, potato and sugarcane with high fructan, with no adverse effects on plant development, have been bred, which suggests that it is feasible to introduce fructan biosynthesis pathways in crops to produce health-imparting prebiotics. Developing prebiotic-rich and super nutritious crops will alleviate the widespread malnutrition and promote human health. A paradigm shift in breeding program is needed to achieve this goal and to ensure that newly-bred crop cultivars are nutritious, safe and health promoting. (C) 2014 Pontificia Universidad Catolica de Valparaiso. Production and hosting by Elsevier B.V. All rights reserved.

Keywords

Germplasm; Gut microbiota; Human health; Non-digestible fibers; Transgene

Published in

Electronic Journal of Biotechnology
2014, volume: 17, number: 5, pages: 238–245

Authors' information

Dwivedi, Sangam L.
New Mexico State University
Sahrawat, Kanwar
International Crops Research Institute for the Semi-Arid Tropics (ICRISAT)
Puppala, Naveen
New Mexico State University
Swedish University of Agricultural Sciences, Department of Plant Breeding

Sustainable Development Goals

SDG2 Zero hunger

UKÄ Subject classification

Plant Biotechnology
Genetics and Breeding

Publication Identifiers

DOI: https://doi.org/10.1016/j.ejbt.2014.07.004

URI (permanent link to this page)

https://res.slu.se/id/publ/59815