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ARS Home » Southeast Area » Raleigh, North Carolina » Market Quality and Handling Research » Research » Publications at this Location » Publication #99797
Title: DESIGN AND EVALUATION OF AN ACCELERATED LABORATORY EXTRACTOR AND APPLICATION FOR THE SELECTIVE EXTRACTION OF TRIACYLGLYCEROLS FROM POLAR COMPONENTS IN OIL SEEDS

Author
item Singleton, John
item STIKELEATHER, LARRY - NC STATE UNIVERSITY

Submitted to: Annual Meeting and Expo of the American Oil Chemists' Society
Publication Type: Abstract Only
Publication Acceptance Date: 5/12/1999
Publication Date: N/A
Citation: N/A

Interpretive Summary:

Technical Abstract: A laboratory scale accelerated extractor has been designed and constructed that selectively extracts non-polar and polar components from oil seeds and other food matrices. The extractor uses available laboratory equipment for the solvent source. Pressure, temperature and valving arrangements are precisely controlled by commercial available components. Advantages of this system include low initial investment, reduced solvent consumption, shorter extraction times, quantitative lipid recovery, use of multiple extraction solvents, and reduction in cost per sample. The method has broader applications that include extraction of trace components from a variety of matrices such as the extraction of pesticides and PCB from soil and food products. Class separation of components from different matrices may be achieved easily by selection of solvents with the appropriate polarity characteristics. Very small samples may be extracted simply by changing the cell size or by adding an inert material to the cell to fill the void volume. Analyte collection may be accomplished by collecting in a solvent, test tube, or on a solid phase material. Optimization of extraction times, number of extractions, matrices, and solvents utilized are described. This method of extraction is comparable to soxhlet extraction.