Polymorphism and solvates of 3,3′-dihydroxy-β,β-carotene-4,4′-dione: Screening and their thermodynamics

被引：9

作者：

Guo, J. ^{[1
]}

Ulrich, J. ^{[1
]}

机构：

[1] Univ Halle Wittenberg, Ctr Engn Sci, TVT, D-06099 Halle, Saale, Germany

来源：

CRYSTAL RESEARCH AND TECHNOLOGY | 2010年 / 45卷 / 03期

关键词：

polymophism; carotenoid; thermal analysis; chemical stability; BATHOCHROMIC SHIFT; LOBSTER CARAPACE; CAROTENOIDS;

D O I：

10.1002/crat.200900636

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

3,3'-dihydroxy-beta,beta-carotene-4,4'-dione (DCD) is a carotenoid used for the pink coloration in animal and fish foods. Two nonsolvated and two solvated forms of this compound have been discovered and characterized using different analytical techniques. The thermodynamic stability of the relevant polymorphs is revealed. The transformation rate depends strongly on the selection of solvent medium. Moreover, different chemical stability refers to the shelf life is studied correlating to the different polymorphs. The results show the possibilities to improve the pigmentation efficiency and chemical stability by a changing in the crystal polymorphs. (C) 2010 WILEY-VCH Verlag GmbH & Co. KGa.A, Weinheim

引用

页码：267 / 274

页数：8

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