Biomarkers for detecting nitrogen deficiency during alcoholic fermentation in different commercial wine yeast strains.

@article{Gutirrez2013BiomarkersFD,
  title={Biomarkers for detecting nitrogen deficiency during alcoholic fermentation in different commercial wine yeast strains.},
  author={Alicia Hern{\'a}ndez Guti{\'e}rrez and Rosana Chiva and Gemma Beltran and Albert Mas and J{\'o}s{\'e} Manuel Guillam{\'o}n},
  journal={Food microbiology},
  year={2013},
  volume={34 1},
  pages={227-37}
}
Nitrogen deficiencies in grape musts are one of the main causes of stuck or sluggish wine fermentations. Several putative biomarkers were tested in order to analyze their appropriateness to detect nitrogen stress in the yeast. To this aim, four commercial wine strains (PDM, ARM, RVA and TTA) were grown in a synthetic grape must with different nitrogen concentrations. Trehalose accumulation, arginase activity and the expression of eleven genes were tested in these wine strains, known to have… CONTINUE READING
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