Column-switching high-performance liquid chromatography-fluorescence detection method for malic acid enantiomers in commercial wines

Autor: Maho Umino, Tatsuya Sakamoto, Takeshi Fukushima, Ryuji Kanda, Yushi Sato, Mayu Onozato
Rok vydání: 2022
Předmět:
Zdroj: Journal of Food Composition and Analysis. 106:104282
ISSN: 0889-1575
DOI: 10.1016/j.jfca.2021.104282
Popis: Determination of malic acid (MA) in commercial drinks is imperative to assure the quality of taste and safety of the product to human health. In this study, a column-switching high-performance liquid chromatography (HPLC)-fluorescence detection method was employed to determine the content of d - and l -MA in wines. The developed method successfully detected both MA enantiomers in several wines with a pre-column fluorescence derivatization procedure. Additionally, the present HPLC system provided sufficient data with a small sample quantity. Moreover, the d -MA peak was detected in the chromatogram of wine samples without acidulants. Thus, we believe that the proposed method would benefit the wine-brewing process and facilitate quality certification in the wine industry.
Databáze: OpenAIRE