| Title: | Rapid Quantitation of 12 Volatile Aldehyde Compounds in Wine by LC-QQQ-MS: A Combined Measure of Free and Hydrogen-Sulfite-Bound Forms |
| Author(s): | Zhang X; Kontoudakis N; Clark AC; |
| Address: | "National Wine and Grape Industry Centre , Wagga Wagga , NSW 2678 , Australia. School of Agricultural and Wine Sciences , Charles Sturt University , Locked Bag 588 , Wagga Wagga , NSW 2678 , Australia" |
| ISSN/ISBN: | 1520-5118 (Electronic) 0021-8561 (Linking) |
| Abstract: | "This work outlines a rapid novel methodology for the direct quantitation of 12 volatile aldehyde compounds related to oxidative off-flavors in wine, by measuring the combined free and hydrogen-sulfite-bound forms of each aldehyde compound, consisting of four general aldehydes, four Strecker aldehydes, and four (E)-2-alkenals. The methodology requires minimal preparation of wine samples: the addition of internal standards and 6 g/L sulfur dioxide, and filtration prior to quantitation by liquid chromatography-triple quadrupole-mass spectrometery. Overall, the limit of detection, limit of quantification, accuracy (recovery, 97-114%), and precision (repeatability and reproducibility, RSD |
| Keywords: | "Aldehydes/*chemistry Chromatography, Liquid/*methods Limit of Detection Mass Spectrometry/*methods Volatile Organic Compounds/*chemistry Wine/*analysis oxidation sulfur dioxide volatile aldehyde compounds wine;" |
| Notes: | "MedlineZhang, Xinyi Kontoudakis, Nikolaos Clark, Andrew C eng Evaluation Study 2019/02/28 J Agric Food Chem. 2019 Mar 27; 67(12):3502-3510. doi: 10.1021/acs.jafc.8b07021. Epub 2019 Mar 13" |
