Thermal isomerization of (all-E)-lycopene and separation of the Z-isomers by using a low boiling solvent: Dimethyl ether. Issue 16 (2nd November 2017)

• Record Type: Journal Article
• Authors: Murakami, Kazuya; Honda, Masaki; Wahyudiono, ; Kanda, Hideki; Goto, Motonobu
• Is Part Of: Separation science and technology. Volume 52:Issue 16(2017)
• Page Start: 2573
• Page End: 2582
• Publication Date: 2017-11-02
• Subjects: Carotenoid -- dimethyl ether -- physical property -- separation -- thermal isomerization; Separation (Technology) -- Periodicals; 660.284205
• DOI: 10.1080/01496395.2017.1374412
• Languages: English
• ISSNs: 0149-6395

Abstract

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.