Thermal isomerization of (all-E)-lycopene and separation of the Z-isomers by using a low boiling solvent: Dimethyl ether

Kazuya Murakami, Masaki Honda, Wahyudiono, Hideki Kanda, Motonobu Goto

Research output: Contribution to journalArticlepeer-review

14 Citations (Scopus)

Abstract

Thermal isomerization of (all-E)-lycopene and the separation of generated Z-isomers were conducted using a low boiling solvent, dimethyl ether (DME). Because of the low boiling point (–24.8°C), DME is easily separated from lipids and other residues and is extremely low residual. The efficiency of thermal Z-isomerization of (all-E)-lycopene in DME was almost equivalent to using hexane. The thermally generated lycopene Z-isomers were separated by utilizing the solubility differences among lycopene isomers and a characteristic of DME that allows the solubility of compounds to be controlled by changing the temperature. Finally, a lycopene mixture containing 72.0% Z-isomers was obtained from (all-E)-lycopene.

Original languageEnglish
Pages (from-to)2573-2582
Number of pages10
JournalSeparation Science and Technology
Volume52
Issue number16
DOIs
Publication statusPublished - 2017 Nov 2

Keywords

  • Carotenoid
  • dimethyl ether
  • physical property
  • separation
  • thermal isomerization

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