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Distribution and characterisation of fructan in wheat milling fractions

Haskå, Lina LU ; Nyman, Margareta LU and Andersson, Roger (2008) In Journal of Cereal Science 48(3). p.768-774
Abstract
Structure and health effects of inulin-type fructans have been extensively studied, while less is known about the properties of the graminan-type fructans in wheat. Arabinoxylan (AX) is another important indigestible component in cereal grains, which may have beneficial health effects. In this study, the fructan content in milling fractions of two wheat cultivars was determined and related to ash, dietary fibre and AX contents. The molecular weight distribution of the fructans was analysed with HPAEC-PAD and MALDI-TOF MS using 1H NMR and enzymatic hydrolysis for identification of fructans. The fructan content (g/100 g) ranged from 1.5 ± 0.2 in flour to 3.6 ± 0.5 in shorts and 3.7 ± 0.3 in bran. A correlation was found between fructan... (More)
Structure and health effects of inulin-type fructans have been extensively studied, while less is known about the properties of the graminan-type fructans in wheat. Arabinoxylan (AX) is another important indigestible component in cereal grains, which may have beneficial health effects. In this study, the fructan content in milling fractions of two wheat cultivars was determined and related to ash, dietary fibre and AX contents. The molecular weight distribution of the fructans was analysed with HPAEC-PAD and MALDI-TOF MS using 1H NMR and enzymatic hydrolysis for identification of fructans. The fructan content (g/100 g) ranged from 1.5 ± 0.2 in flour to 3.6 ± 0.5 in shorts and 3.7 ± 0.3 in bran. A correlation was found between fructan content and dietary fibre content (r = 0.93, P < 0.001), but with a smaller variation in fructan content between inner and outer parts of the grain. About 50% of the dietary fibre consisted of AX in all fractions. The fructans were found to have a DP of up to 19 with a similar molecular weight distribution in the different fractions. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Fructan, Arabinoxylan, Wheat, Molecular weight
in
Journal of Cereal Science
volume
48
issue
3
pages
768 - 774
publisher
Elsevier
external identifiers
  • wos:000261087300029
ISSN
0733-5210
DOI
10.1016/j.jcs.2008.05.002
language
English
LU publication?
yes
id
115e07b4-e96f-4343-b76f-afaf29fb1956 (old id 1182268)
date added to LUP
2008-10-21 17:30:51
date last changed
2016-04-15 20:47:49
@article{115e07b4-e96f-4343-b76f-afaf29fb1956,
  abstract     = {Structure and health effects of inulin-type fructans have been extensively studied, while less is known about the properties of the graminan-type fructans in wheat. Arabinoxylan (AX) is another important indigestible component in cereal grains, which may have beneficial health effects. In this study, the fructan content in milling fractions of two wheat cultivars was determined and related to ash, dietary fibre and AX contents. The molecular weight distribution of the fructans was analysed with HPAEC-PAD and MALDI-TOF MS using 1H NMR and enzymatic hydrolysis for identification of fructans. The fructan content (g/100 g) ranged from 1.5 ± 0.2 in flour to 3.6 ± 0.5 in shorts and 3.7 ± 0.3 in bran. A correlation was found between fructan content and dietary fibre content (r = 0.93, P &lt; 0.001), but with a smaller variation in fructan content between inner and outer parts of the grain. About 50% of the dietary fibre consisted of AX in all fractions. The fructans were found to have a DP of up to 19 with a similar molecular weight distribution in the different fractions.},
  author       = {Haskå, Lina and Nyman, Margareta and Andersson, Roger},
  issn         = {0733-5210},
  keyword      = {Fructan,Arabinoxylan,Wheat,Molecular weight},
  language     = {eng},
  number       = {3},
  pages        = {768--774},
  publisher    = {Elsevier},
  series       = {Journal of Cereal Science},
  title        = {Distribution and characterisation of fructan in wheat milling fractions},
  url          = {http://dx.doi.org/10.1016/j.jcs.2008.05.002},
  volume       = {48},
  year         = {2008},
}