publication . Thesis . 2016

The Effect of Fungicide Residues and Yeast Assimilable Nitrogen on Fermentation Kinetics and H2S Production during Cider Fermentation

Boudreau IV, Thomas Francis;
Open Access
  • Published: 06 Jul 2016
  • Publisher: Virginia Tech
  • Country: United States
The Virginia cider industry has grown rapidly in the past decade, and demands research-based recommendations for cider fermentation. This study evaluated relationships between the unique chemistry of apples and production of hydrogen sulfide (H2S) in cider fermentations. Yeast assimilable nitrogen (YAN) concentration and composition and residual fungicides influence H2S production by yeast during fermentation, but these factors have to date only been studied in wine grape fermentations. This study surveyed 12 Virginia-grown apple cultivars and found that the majority were severely deficient in YAN. The effects of three fungicides on cider fermentation were inves...
Medical Subject Headings: food and beveragesequipment and supplies
free text keywords: Apple cider, fermentation, yeast assimilable nitrogen, hydrogen sulfide, amino acids, fungicides, sensory evaluation
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Thesis . 2016
Provider: VTechWorks
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