PMID- 35051753 OWN - NLM STAT- MEDLINE DCOM- 20220215 LR - 20220215 IS - 1873-3778 (Electronic) IS - 0021-9673 (Linking) VI - 1665 DP - 2022 Feb 22 TI - Online coupling of bubbling extraction with gas chromatography-mass spectrometry for rapid quantitative analysis of volatiles in beer. PG - 462800 LID - S0021-9673(21)00922-5 [pii] LID - 10.1016/j.chroma.2021.462800 [doi] AB - Coexistence of matrices and analytes makes the analysis, determination, and quantification of volatiles in beer a tedious process that is difficult to conduct. Bubbling extraction, a newly established sample pretreatment method, directly releases analytes from liquid phase to gas phase by bubble bursting. In this study, we combined bubbling extraction with gas chromatography-mass spectrometry (GC-MS) for direct molecular characterization as well as effective qualitative and quantitative analysis of three types of fermented beers. This method was found to have a high extraction efficiency (bubbling time of 30-300 s), short analysis time (< 30 min), and rational recovery rates (85.6-97.3%) with relative standard deviations (RSDs) less than 10%. Thirteen volatiles were extracted at a wide concentration range of 0.1-10,000 ng/g with correlation coefficient (R(2)) > 0.990, while the limits of detection (LODs) and limits of quantification (LOQs) were found in scope of 0.001-50 ng/g. Analytical Eco-Scale, Green Analytical Procedure Index (GAPI), and Analytical Greenness (AGREE) approaches proved that our proposed method has a good greenness. In addition, Ale-type, Lambic, and Lager-type beer were successfully classified by the orthogonal partial least squares-discriminant analysis (OPLS-DA). In conclusion, bubbling extraction coupled with GC-MS has potential as a routine analysis tool for identifying volatiles in alcoholic beverages. CI - Copyright (c) 2022 Elsevier B.V. All rights reserved. FAU - He, Lei AU - He L AD - College of Chemistry and Materials Science, Sichuan Normal University, No.5 Jing'an Road, Jinjiang Distinct, Chengdu, Sichuan 610068, China. FAU - Gao, Yuanji AU - Gao Y AD - College of Chemistry and Materials Science, Sichuan Normal University, No.5 Jing'an Road, Jinjiang Distinct, Chengdu, Sichuan 610068, China; Department of Chemistry, Zhejiang University, Hangzhou, Zhejiang 310027, China. Electronic address: yuanjijoy@163.com. FAU - Zhao, Lijuan AU - Zhao L AD - College of Chemistry and Materials Science, Sichuan Normal University, No.5 Jing'an Road, Jinjiang Distinct, Chengdu, Sichuan 610068, China. Electronic address: lijuan_zhao@sicnu.edu.cn. LA - eng PT - Journal Article DEP - 20220108 PL - Netherlands TA - J Chromatogr A JT - Journal of chromatography. A JID - 9318488 SB - IM MH - *Beer/analysis MH - Gas Chromatography-Mass Spectrometry MH - Limit of Detection MH - Solid Phase Extraction MH - *Tandem Mass Spectrometry OTO - NOTNLM OT - Beer OT - Bubbling extraction OT - Carbon dioxide OT - Gas chromatography-mass spectrometry COIS- Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper. EDAT- 2022/01/21 06:00 MHDA- 2022/02/16 06:00 CRDT- 2022/01/20 20:23 PHST- 2021/09/30 00:00 [received] PHST- 2021/12/19 00:00 [revised] PHST- 2021/12/31 00:00 [accepted] PHST- 2022/01/21 06:00 [pubmed] PHST- 2022/02/16 06:00 [medline] PHST- 2022/01/20 20:23 [entrez] AID - S0021-9673(21)00922-5 [pii] AID - 10.1016/j.chroma.2021.462800 [doi] PST - ppublish SO - J Chromatogr A. 2022 Feb 22;1665:462800. doi: 10.1016/j.chroma.2021.462800. Epub 2022 Jan 8.