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Comparison of supercritical carbon dioxide and ethyl acetate extraction of alkylresorcinols from wheat and rye

Landberg, Rikard ; Dey, Estera LU ; da Cruz Francisco, José LU ; Aman, Per and Kamal-Eldin, Afaf (2007) In Journal of Food Composition and Analysis 20(6). p.534-538
Abstract
In this study, the application of supercritical carbon dioxide extraction of alkylresorcinols (AR) was quantitatively and qualitatively compared to a commonly used ethyl acetate extraction procedure. No difference in total AR content, relative homolog composition or total extract yield was found between the two extraction methods. Ethyl acetate extraction of intact wheat and rye kernels yielded only 9-20% of the total extract weight obtained with milled samples, but the same amount of alkylresorcinols, showing the benefit of analyzing intact grains whenever it is possible. The major compounds in all extracts (R-f = 0.8) were fatty acids in esterified form, most probably fatty acid alcohol esters. The two different extraction techniques... (More)
In this study, the application of supercritical carbon dioxide extraction of alkylresorcinols (AR) was quantitatively and qualitatively compared to a commonly used ethyl acetate extraction procedure. No difference in total AR content, relative homolog composition or total extract yield was found between the two extraction methods. Ethyl acetate extraction of intact wheat and rye kernels yielded only 9-20% of the total extract weight obtained with milled samples, but the same amount of alkylresorcinols, showing the benefit of analyzing intact grains whenever it is possible. The major compounds in all extracts (R-f = 0.8) were fatty acids in esterified form, most probably fatty acid alcohol esters. The two different extraction techniques produced comparable results under the conditions used, which suggests that issues other than performance need to be considered when choosing an appropriate technique. (c) 2007 Elsevier Inc. All rights reserved. (Less)
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author
; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
extraction, acetate, ethyl, supercritical carbon dioxide, rye, alkylresorcinols, wheat, TLC
in
Journal of Food Composition and Analysis
volume
20
issue
6
pages
534 - 538
publisher
Elsevier
external identifiers
  • wos:000247758900013
  • scopus:34249863895
ISSN
0889-1575
DOI
10.1016/j.jfca.2007.02.009
language
English
LU publication?
yes
id
d9a45789-413f-44ce-952f-a99330411ed9 (old id 646400)
date added to LUP
2016-04-01 12:08:24
date last changed
2025-01-02 07:10:06
@article{d9a45789-413f-44ce-952f-a99330411ed9,
  abstract     = {{In this study, the application of supercritical carbon dioxide extraction of alkylresorcinols (AR) was quantitatively and qualitatively compared to a commonly used ethyl acetate extraction procedure. No difference in total AR content, relative homolog composition or total extract yield was found between the two extraction methods. Ethyl acetate extraction of intact wheat and rye kernels yielded only 9-20% of the total extract weight obtained with milled samples, but the same amount of alkylresorcinols, showing the benefit of analyzing intact grains whenever it is possible. The major compounds in all extracts (R-f = 0.8) were fatty acids in esterified form, most probably fatty acid alcohol esters. The two different extraction techniques produced comparable results under the conditions used, which suggests that issues other than performance need to be considered when choosing an appropriate technique. (c) 2007 Elsevier Inc. All rights reserved.}},
  author       = {{Landberg, Rikard and Dey, Estera and da Cruz Francisco, José and Aman, Per and Kamal-Eldin, Afaf}},
  issn         = {{0889-1575}},
  keywords     = {{extraction; acetate; ethyl; supercritical carbon dioxide; rye; alkylresorcinols; wheat; TLC}},
  language     = {{eng}},
  number       = {{6}},
  pages        = {{534--538}},
  publisher    = {{Elsevier}},
  series       = {{Journal of Food Composition and Analysis}},
  title        = {{Comparison of supercritical carbon dioxide and ethyl acetate extraction of alkylresorcinols from wheat and rye}},
  url          = {{http://dx.doi.org/10.1016/j.jfca.2007.02.009}},
  doi          = {{10.1016/j.jfca.2007.02.009}},
  volume       = {{20}},
  year         = {{2007}},
}