title: Determination of E,E-farnesol in Makgeolli (rice wine) using dynamic headspace sampling and stir bar sorptive extraction coupled with gas chromatography-mass spectrometry.
abstract: In this paper, we analysed the volatile and semi-volatile compounds, including E,E-farnesol in Makgeolli which is a traditional type of Korean fermented rice wines. Forty-one compounds including alcohols, 1-butanol-3-methyl acetate, E,E-farnesol, stearol, and phytane, were separated and quantified by dynamic headspace sampling (DHS) and stir bar sorptive extraction (SBSE) coupled with gas chromatography-mass spectrometry. SBSE has been found to be an effective method for analysing E,E-farnesol levels in Makgeolli. The experimental parameters related to the extraction efficiency of the SBSE method, such as ethanol concentration and filtration, were studied and optimised. The linear dynamic range of the SBSE method for E,E-farnesol ranged from 0.02 to 200ngml(-1) with R(2)=0.9974. The limit of detection and limit of quantification of the SBSE method were 0.02 and 0.05ngml(-1), respectively. The relative standard deviation of intra- and inter-day reproducibility was less than 6.2% and 9.9%, respectively.
authors.affiliation: Food Analysis Center, Korea Food Research Institute, 516, Baekhyun, Bundang, Seongnam, Gyeonggi Province 463-746, Republic of Korea. jhkfri@kfri.re.kr
authors.forename: Jaeho
authors.initials: J
authors.lastname: Ha
authors.forename: Yiru
authors.initials: Y
authors.lastname: Wang
authors.forename: Hyejin
authors.initials: H
authors.lastname: Jang
authors.forename: Homoon
authors.initials: H
authors.lastname: Seog
authors.forename: Xi
authors.initials: X
authors.lastname: Chen
mesh_terms: D005204:Farnesol / Q000737:chemistry* / Q000302:isolation & purification*; D008401:Gas Chromatography-Mass Spectrometry / Q000379:methods*; D012275:Oryza / Q000737:chemistry; D052616:Solid Phase Extraction / Q000379:methods*; D014920:Wine / Q000032:analysis*
chemical_list: D005204:Farnesol
keywords: Farnesol; GC–MS; Makgeolli; SBSE