Determination of the oil content of seeds by focused microwave-assisted soxhlet extraction

被引：34
|
作者：
García-Ayuso, LE
Velasco, J
Dobarganes, MC
de Castro, MD [1 ]
机构：
[1] Univ Cordoba, Fac Sci, Div Analyt Chem, E-14004 Cordoba, Spain
[2] CSIC, Inst Grasa & Derivados, E-41012 Seville, Spain
来源：
CHROMATOGRAPHIA | 2000年 / 52卷 / 1-2期
关键词：
microwave-assisted Soxhlet extraction; lipid extraction; oleaginous seeds; factorial design;
D O I：
10.1007/BF02490801
中图分类号：
Q5 [生物化学];
学科分类号：
071010 ; 081704 ;
摘要：
Soybean, rape and sunflower lipids have been extracted with a focused microwave-assisted Soxhlet extractor The main factors affecting extraction efficiency, namely microwave irradiation power, number of cycles and microwave irradiation time were optimised by means of a central composite design based on a two-level-three-factor factorial design. A study of the influence of particle size on the extraction procedure was also performed. The results obtained were compared with those obtained by use of an ISO method using a conventional Soxhlet extractor Quantitative results for lipid content based on gravimetric determinations and qualitative results based on analysis of fatty acid methyl esters and polymeric compounds were similar to those obtained by Soxhlet extraction with hexane. Substantial reduction of sample manipulation, analysis time and solvent wastage is achieved by use of the proposed method.
引用
收藏
页码：103 / 108
页数：6
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