Effects of ammonium sulphate concentration on growth and glycerol production kinetics of two endogenic wine yeast strains

YALÇIN S. S., Oezbas Z. Y.

INDIAN JOURNAL OF BIOTECHNOLOGY, cilt.7, sa.1, ss.89-93, 2008 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 7 Sayı: 1
  • Basım Tarihi: 2008
  • Dergi Adı: INDIAN JOURNAL OF BIOTECHNOLOGY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.89-93
  • Anahtar Kelimeler: fermentation, glycerol, growth kinetics, production kinetics, wine, yeast, FERMENTATION
  • Hacettepe Üniversitesi Adresli: Evet

Özet

Effects of initial ammonium sulphate concentration on growth and glycerol production kinetics of two endogenic wine yeast strains, Saccharomyces cerevisiae Kalecik 1 and Narince 3, were investigated in a batch system. Maximum specific growth rates for Kalecik I and Narince 3 were obtained at initial concentrations of 1.0 g/L, and 0.8 g/L ammonium sulphate, respectively. Further, maximum specific glycerol production rates and glycerol concentrations, for both of the strains, were obtained in the medium containing 0.3 g/L ammonium sulphate. In this medium, maximum glycerol concentrations were 6.4 g/L for the strain Kalecik 1, and 6.5 g/L for Narince 3.