title: Contents of dietary fibre components and their relation to associated bioactive components in whole grain wheat samples from the HEALTHGRAIN diversity screen.
abstract: A large and diverse material collection of whole grain wheat samples (n=129) was analysed for total dietary fibre (TDF) content and composition, including fructan (11.5-15.5%). Correlations between the dietary fibre components, associated bioactive components (e.g. tocols, sterols, phenolic acids and folates) and agronomic properties previously determined on the same samples were found with multivariate analysis (PCA). Samples from the same countries had similar characteristics. The first PC described variation in components concentrated in the starchy endosperm (e.g. starch, β-glucan and fructan) and the dietary fibre components concentrated in the bran (e.g. TDF, arabinoxylan and cellulose). The second PC described the variation in kernel weight and other bran components such as alkylresorcinols, tocols and sterols. Interestingly, there was no correlation among these different groups of bran components, which reflected their concentration in different bran tissues. The results are of importance for plant breeders who wish to develop varieties with health-promoting effects.
authors.affiliation: Department of Food Science, Swedish University of Agricultural Sciences, P.O. Box 7051, SE-750 07 Uppsala, Sweden. annica.andersson@slu.se
authors.forename: Annica A M
authors.initials: AA
authors.lastname: Andersson
authors.forename: Roger
authors.initials: R
authors.lastname: Andersson
authors.forename: Vieno
authors.initials: V
authors.lastname: Piironen
authors.forename: Anna-Maija
authors.initials: AM
authors.lastname: Lampi
authors.forename: Laura
authors.initials: L
authors.lastname: Nyström
authors.forename: Danuta
authors.initials: D
authors.lastname: Boros
authors.forename: Anna
authors.initials: A
authors.lastname: Fraś
authors.forename: Kurt
authors.initials: K
authors.lastname: Gebruers
authors.forename: Christophe M
authors.initials: CM
authors.lastname: Courtin
authors.forename: Jan A
authors.initials: JA
authors.lastname: Delcour
authors.forename: Mariann
authors.initials: M
authors.lastname: Rakszegi
authors.forename: Zoltan
authors.initials: Z
authors.lastname: Bedo
authors.forename: Jane L
authors.initials: JL
authors.lastname: Ward
authors.forename: Peter R
authors.initials: PR
authors.lastname: Shewry
authors.forename: Per
authors.initials: P
authors.lastname: Man
mesh_terms: D044822:Biodiversity; D001947:Breeding; D002482:Cellulose / Q000032:analysis; D004043:Dietary Fiber / Q000032:analysis*; D005492:Folic Acid / Q000032:analysis; D005838:Genotype; D006801:Humans; D010936:Plant Extracts / Q000032:analysis*; D013261:Sterols / Q000032:analysis; D014908:Triticum / Q000737:chemistry* / Q000235:genetics
chemical_list: D004043:Dietary Fiber; D010936:Plant Extracts; D013261:Sterols; D002482:Cellulose; D005492:Folic Acid