Urea, ammonium, and free amino acid contents were quantified in biological aging of a young wine under two flor film forming yeast strains, Saccharomyces cerevisiae race capensis and S. cerevisiae race bayanus, and compared. Cell viability in the film was different for the two yeast strains. Thus, c
✦ LIBER ✦
Retention of Browning Compounds by Yeasts Involved in the Winemaking of Sherry Type Wines
✍ Scribed by Julieta Merida; Azahara Lopez-Toledano; Trinidad Marquez; Carmen Millan; Jose M. Ortega; Manuel Medina
- Publisher
- Springer Netherlands
- Year
- 2005
- Tongue
- English
- Weight
- 223 KB
- Volume
- 27
- Category
- Article
- ISSN
- 0141-5492
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## Abstract A new method has been developed to determine acetaldehyde, 2,3‐butanedione (diacetyl) and 3‐hydroxy‐2‐butanone (acetoin) in wine by solid‐phase microextraction (SPME) and positive ion chemical ionization GC/MS analysis of __O__‐(2,3,4,5,6‐pentafluorobenzyl)‐hydroxylamine (PFBOA) derivat