Acid whey as a medium for cultivation of conventional and non-conventional yeasts
Abstract
The aim of this study was to investigate the capacity of different
yeast strains to grow on acid whey and assimilate different carbon sources.
Twenty different yeasts (with GRAS status) were tested, sourced from the
LOCK105 Culture Collection (Poland) and the National Collection of
Yeast Cultures (Great Britain). The acid whey, from cows was
characterized in terms of it main chemical components (carbohydrates,
organic acids, aminoacids, FAN, total nitrogen) using HPLC techniques
and chemical methods. The best producer of biomass (of conventional
yeast strains) was S. cerevisiae Ja64 (biomass yield 1.16 g of dry mass/l),
while among non-conventional yeasts the highest increase of biomass
showed the strain D. hansenii, reaching the biomass yield of 1.12 g of dry
mass/l.
Collections
- Artykuły (WBiNoŻ) [169]