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Changes in the carrot (Daucus carota L. cv. Nerac) cell wall during storage

Gomez, Federico LU ; Bråthen, Erland; Knutsen, Svein Halvor; Sommarin, Marianne LU ; Gekas, Vassilis LU and Sjöholm, Ingegerd LU (2004) In Food Research International 37(3). p.225-232
Abstract
The aim of this study was to examine biochemical changes in cell wall carbohydrates and extensin proteins during long-term storage of carrots (Daucus carota L. cv. Nerac). During the storage period of 6 months, cell wall fractions were isolated from the carrot at various times for carbohydrate and protein analysis. Signs of extensin cross-linking and its concomitant insolubilisation in the cell wall were found after 7 and 12 weeks of storage. During the same period the concentration of galactose and arabinose decreased, while other carbohydrate components as well as the degree of methylesterification remained virtually unchanged. After the 12th week of storage no changes in the extensin or carbohydrates were detected. Oxidative... (More)
The aim of this study was to examine biochemical changes in cell wall carbohydrates and extensin proteins during long-term storage of carrots (Daucus carota L. cv. Nerac). During the storage period of 6 months, cell wall fractions were isolated from the carrot at various times for carbohydrate and protein analysis. Signs of extensin cross-linking and its concomitant insolubilisation in the cell wall were found after 7 and 12 weeks of storage. During the same period the concentration of galactose and arabinose decreased, while other carbohydrate components as well as the degree of methylesterification remained virtually unchanged. After the 12th week of storage no changes in the extensin or carbohydrates were detected. Oxidative cross-linking between extensin molecules in the cell wall has been implicated in cell wall strengthening and may be part of the mechanism behind the storage-induced firmness of carrots. (C) 2003 Elsevier Ltd. All rights reserved. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Storage, Cell walls, Carrot, Extensin, Carbohydrates, Oxidative cross-linking
in
Food Research International
volume
37
issue
3
pages
225 - 232
publisher
Elsevier
external identifiers
  • wos:000220123100004
  • scopus:1242299698
ISSN
0963-9969
DOI
10.1016/j.foodres.2003.11.006
language
English
LU publication?
yes
id
e3e0a693-3f20-4db2-97e3-54db3fb110ec (old id 139253)
date added to LUP
2007-07-05 10:05:30
date last changed
2017-10-01 03:48:08
@article{e3e0a693-3f20-4db2-97e3-54db3fb110ec,
  abstract     = {The aim of this study was to examine biochemical changes in cell wall carbohydrates and extensin proteins during long-term storage of carrots (Daucus carota L. cv. Nerac). During the storage period of 6 months, cell wall fractions were isolated from the carrot at various times for carbohydrate and protein analysis. Signs of extensin cross-linking and its concomitant insolubilisation in the cell wall were found after 7 and 12 weeks of storage. During the same period the concentration of galactose and arabinose decreased, while other carbohydrate components as well as the degree of methylesterification remained virtually unchanged. After the 12th week of storage no changes in the extensin or carbohydrates were detected. Oxidative cross-linking between extensin molecules in the cell wall has been implicated in cell wall strengthening and may be part of the mechanism behind the storage-induced firmness of carrots. (C) 2003 Elsevier Ltd. All rights reserved.},
  author       = {Gomez, Federico and Bråthen, Erland and Knutsen, Svein Halvor and Sommarin, Marianne and Gekas, Vassilis and Sjöholm, Ingegerd},
  issn         = {0963-9969},
  keyword      = {Storage,Cell walls,Carrot,Extensin,Carbohydrates,Oxidative cross-linking},
  language     = {eng},
  number       = {3},
  pages        = {225--232},
  publisher    = {Elsevier},
  series       = {Food Research International},
  title        = {Changes in the carrot (Daucus carota L. cv. Nerac) cell wall during storage},
  url          = {http://dx.doi.org/10.1016/j.foodres.2003.11.006},
  volume       = {37},
  year         = {2004},
}