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J Chromatogr A


Title:Profiling flavor compounds of potato crisps during storage using solid-phase microextraction
Author(s):Sanches-Silva A; Lopez-Hernandez J; Paseiro-Losada P;
Address:"Department of Analytical Chemistry, Nutrition and Food Science, Faculty of Pharmacy, University of Santiago de Compostela, E-15782 Santiago de Compostela, Spain"
Journal Title:J Chromatogr A
Year:2005
Volume:1064
Issue:2
Page Number:239 - 245
DOI: 10.1016/j.chroma.2004.05.108
ISSN/ISBN:0021-9673 (Print) 0021-9673 (Linking)
Abstract:"Headspace solid-phase microextraction (HS-SPME) was studied as a solvent free alternative method for the extraction and characterisation of volatile compounds in stored potato crisps by capillary gas chromatography coupled with mass detection. Better results were obtained when extraction was carried out at 70 degrees C using a divinylbenzene (DVB)-carboxen (CAR)-polydimethylsiloxane fiber. The fiber was exposed for 20 min (extraction time) to the sample headspace, immediately after an equilibrium time of 5 min (time needed to reach the equilibrium between sample and above headspace). A total of 31 compounds were identified in oxidised potato crisps and resulted mainly from the degradation/rearrangement of lipids and carbohydrates"
Keywords:Gas Chromatography-Mass Spectrometry/*methods Organic Chemicals/*analysis Solanum tuberosum/*chemistry Volatilization;
Notes:"MedlineSanches-Silva, A Lopez-Hernandez, J Paseiro-Losada, P eng Netherlands 2005/03/03 J Chromatogr A. 2005 Feb 4; 1064(2):239-45. doi: 10.1016/j.chroma.2004.05.108"

 
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