Supercritical fluid extraction of hydrocarbons and 2-alkylcyclobutanones for the detection of irradiated foodstuffs

被引：33

作者：

Horvatovich, P

Miesch, M

Hasselmann, C

Marchioni, E

机构：

[1] Fac Pharm, Dept Sci Aliment, F-67400 Illkirch, France

[2] Univ Hort & Food Ind, Inst Preservat & Livestock Prod Technol, H-1118 Budapest, Hungary

[3] Inst Curie, Lab Chim Organ Synthet, UMR 7509, F-67000 Strasbourg, France

来源：

JOURNAL OF CHROMATOGRAPHY A | 2000年 / 897卷 / 1-2期

关键词：

supercritical fluid extraction; hydrocarbons; 2-alkylcyclobutanones;

D O I：

10.1016/S0021-9673(00)00810-4

中图分类号：

Q5 [生物化学];

学科分类号：

071010 ; 081704 ;

摘要：

Supercritical carbon dioxide can be used to carry out a selective and fast extraction (30 min) of volatile hydrocarbons and 2-alkylcyclobutanones contained in irradiated foods. After elimination of the traces of triglycerides still contained in the extracts on a silica column, the compounds were analysed by gas chromatography-mass spectroscopy (2-alkylcyclobutanones) and gas chromatography-flame ionization detection (volatile hydrocarbons). The present method was applied successfully to freeze-dried samples (1 g or less) of cheese, chicken, avocados and to various ingredients (chocolate, Liquid whole eggs) included in non-irradiated cookies. It was faster (4-5 h) than the reference methods EN 1784 (volatile hydrocarbons) and EN 1785 (2-alkylcyclobutanones), which take 1.5 days each. The minimal dose detectable by this method is, in addition, slightly lower than those of the reference methods. (C) 2000 Elsevier Science BN. All rights reserved.

引用

页码：259 / 268

页数：10