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Isomer Treatment by Additive Application in the Liquid Stage as Known from Industrial Crystallization
Author(s) -
Kreißig Franziska,
Schäfer Christian,
Verdurand Elodie,
Ulrich Joachim
Publication year - 2015
Publication title -
chemical engineering and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.403
H-Index - 81
eISSN - 1521-4125
pISSN - 0930-7516
DOI - 10.1002/ceat.201400673
Subject(s) - astaxanthin , isomerization , crystallization , degradation (telecommunications) , chemistry , kinetics , molecule , chloroform , chemical engineering , organic chemistry , catalysis , carotenoid , food science , telecommunications , physics , quantum mechanics , computer science , engineering
This study verified the usefulness of additives for the stabilization of dissolved material in the liquid stage as in the case of crystallization. Additives were introduced to prevent dissolved crystals from isomerization and degradation. The case study here is astaxanthin, a carotenoid occurring in different isomers. The molecule structure is susceptible to a plethora of substances and factors which cause transformation and degradation of the isomers. The aim was to examine whether foreign materials (additives) would induce a change of the kinetics of a system consisting of crystalline all‐ trans astaxanthin dissolved in chloroform. The results show that K 2 CO 3 and CH 3 COOK increase the stability of all‐ trans astaxanthin in solution.