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

Forskningsoutput: TidskriftsbidragArtikel i vetenskaplig tidskrift

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.

Detaljer

Författare
  • Rikard Landberg
  • Estera Dey
  • José da Cruz Francisco
  • Per Aman
  • Afaf Kamal-Eldin
Enheter & grupper
Forskningsområden

Ämnesklassifikation (UKÄ) – OBLIGATORISK

  • Biokemi och molekylärbiologi

Nyckelord

Originalspråkengelska
Sidor (från-till)534-538
TidskriftJournal of Food Composition and Analysis
Volym20
Utgåva nummer6
StatusPublished - 2007
PublikationskategoriForskning
Peer review utfördJa