Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 426491
Title Prebiotic effects of yacon (Smallanthus sonchifolius Poepp. & Endl), a source of fructooligosaccharides and phenolic compounds with antioxidant activity
Author(s) Campos, D.; Betalleluz-Pallardel, I.; Chirinos, R.; Aguilar-Glalvez, A.; Noratto, G.; Pedreschi, R.
Source Food Chemistry 135 (2012)3. - ISSN 0308-8146 - p. 1592 - 1599.
DOI http://dx.doi.org/10.1016/j.foodchem.2012.05.088
Department(s) FBR Fresh Supply Chains
Publication type Refereed Article in a scientific journal
Publication year 2012
Keyword(s) chain fatty-acids - tropaeolum-tuberosum ruiz - polymnia-sonchifolia - rats - roots - oligosaccharides - identification - fermentation - profiles - storage
Abstract Thirty-five different yacon (Smallanthus sonchifolius Poepp. & Endl) accessions were evaluated as potential alternative sources of fructooligosaccharides (FOS) and phenolic type natural antioxidants. FOS, total phenolics (TPC) and antioxidant capacity (AC) contents in the ranges of 6.4–65 g/100 g of dry mater (DM), 7.9–30.8 mg chlorogenic acid (CAE)/g of DM and 23–136 µmol trolox equivalente (TE)/g DM were found. Accession AJC 5189 sparked attention for its high FOS content while DPA 07011 for its high TPC and AC. In addition, the prebiotic effect of yacon FOS was tested in vivo with a guinea pig model. A diet rich in yacon FOS promoted the growth of bifidobacteria and lactobacilli, resulting in high levels of short chain fatty acids (SCFAs) in the cecal material and enhancement of cell density and crypt formation in caecum tissue, being indicative of colon health benefits. This study allowed identification of yacon cultivars rich in FOS, AC and/or FOS and AC for nutraceutical applications.
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