Monitoring acetaldehyde concentrations during micro-oxygenation of red wine by headspace solid-phase microextraction with on-fiber derivatization Article

Carlton, WK, Gump, B, Fugelsang, K et al. (2007). Monitoring acetaldehyde concentrations during micro-oxygenation of red wine by headspace solid-phase microextraction with on-fiber derivatization . JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY, 55(14), 5620-5625. 10.1021/jf070243b

cited authors

  • Carlton, WK; Gump, B; Fugelsang, K; Hasson, AS

authors

abstract

  • An analytical method was developed to quantify levels of acetaldehyde in wine samples. The method utilizes headspace solid-phase microextraction with on-fiber derivatization using O-(pentafluorobenzyl)-hydroxylamine and quantification by gas chromatography with flame ionization detection. The technique showed good sensitivity and reproducibility in samples of Chardonnay, Petite Sirah, and Merlot wines containing acetaldehyde at levels below the sensory threshold (40-100 ppm). The method was used to monitor acetaldehyde concentrations during the micro-oxygenation of Merlot wine in a 141 L pilot-plant experiment and a 2400 L full-scale study. In both experiments, levels of acetaldehyde remained constant for several weeks before increasing at rates of the order of 1 ppm/day. Variations in the levels of acetaldehyde present are discussed within the context of the underlying chemical reactions. © 2007 American Chemical Society.

publication date

  • July 11, 2007

published in

Digital Object Identifier (DOI)

start page

  • 5620

end page

  • 5625

volume

  • 55

issue

  • 14