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l-Malic Acid Effect on Organic Acid Profiles and Fermentation By-products in Apple Wines

Author

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  • A. Kunicka-Styczyńska
  • E. Pogorzelski

    (Institute of Fermentation Technology and Microbiology, Technical University of Lodz, 90-924 Lodz, Poland, *E-mail: akunicka@p.lodz.pl)

Abstract

Industrial wine yeasts Saccharomyces bayanus and two interspecies hybrids (S. cerevisiae × S. bayanus) were checked for their suitability for fermentation of apple musts with different L-malic acid content (4, 7 and 11 g/l). The fermentation profiles including main organic acids, acetaldehyde, diacetyl, glycerol, esters and polyphenols were presented. The results were obtained by HPLC method (organic acids, acetaldehyde, glycerol, diacetyl), GC (esters), colorimetrically (polyphenols) and enzymatically (L-malic acid, ethanol). Although the fermentation profiles of wines were characteristic for specific yeast strains, similarities in organic acid profiles of wines fermented by S. bayanus and its hybrid S-779/25 were noted. In all the tested wines L-malic, pyruvic and citric acids were dominant. Statistical analysis of all wine parameters indicates that yeast strains respond individually to different acidities of the fermentation environment. In order to choose the right yeast strain for the fermentation of acidic musts, information about fermentation profiles should be included in the collection certificate of yeast strains.

Suggested Citation

  • A. Kunicka-Styczyńska & E. Pogorzelski, 2009. "l-Malic Acid Effect on Organic Acid Profiles and Fermentation By-products in Apple Wines," Czech Journal of Food Sciences, Czech Academy of Agricultural Sciences, vol. 27(SpecialIs), pages 228-231.
    • Handle: RePEc:caa:jnlcjf:v:27:y:2009:i:specialissue1:id:1063-cjfs
    DOI: 10.17221/1063-CJFS
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    References listed on IDEAS

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    1. Vlatka Petravić Tominac & Karin Kovačević Ganić & Draženka Komes & Leo Gracin & Mara Banović & Vladimir Marić, 2008. "Influence of media composition and temperature on volatile aroma production by various wine yeast strains," Czech Journal of Food Sciences, Czech Academy of Agricultural Sciences, vol. 26(5), pages 376-382.
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