Physicochemical and volatile characterization of structured lipids from olive oil produced in a stirred-tank batch reactor

J. H. Lee, M. R. Kim, In-Hwan Kim, H. Kim, J. A. Shin, K. T. Lee

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

Structured lipid (SL) from conjugated linoleic acid (CLA) with olive oil was produced, and the physicochemical and volatile characterizations were investigated. In SL-olive oil, 21.8 mol% of CLA isomers were incorporated, and the removal of tocopherols (63% loss from original olive oil) and chlorophylls (50% loss) was observed. The distinct exothermal peaks observed became broader, and the position of the peak shifted to a lower temperature in SL-olive oil compared with normal olive oil. Reverse-phase (ODS column) high-performance liquid chromatography with an evaporative light-scattering detection separated the newly synthesized SL-triacylglycerols (TAGs), in which the incorporation of CLA into olive oil increased the content of TAGs with partition number <48 from 9% (in olive oil) to 78% (SL-olive oil). Total amount of volatile compounds in SL-olive oil was smaller than those in olive oil, indicating removal of flavor compounds from olive oil occurred during the processes.

Original languageEnglish
JournalJournal of Food Science
Volume69
Issue number2
Publication statusPublished - 2004 Mar 1

Fingerprint

structured lipids
olive oil
Lipids
Conjugated Linoleic Acids
conjugated linoleic acid
Triglycerides
Olive Oil
triacylglycerols
Tocopherols
flavor compounds
light scattering
Chlorophyll
tocopherols
volatile compounds
isomers
high performance liquid chromatography

Keywords

  • Conjugated linoleic acid
  • DSC
  • Olive oil
  • RP-HPLC
  • Solid-phase microextraction (SPME)
  • Structured lipids

ASJC Scopus subject areas

  • Food Science

Cite this

Physicochemical and volatile characterization of structured lipids from olive oil produced in a stirred-tank batch reactor. / Lee, J. H.; Kim, M. R.; Kim, In-Hwan; Kim, H.; Shin, J. A.; Lee, K. T.

In: Journal of Food Science, Vol. 69, No. 2, 01.03.2004.

Research output: Contribution to journalArticle

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