For P. stipitis and C. guilliermondii cells protein content in dry matter
was 45.6(±3.76)% and 49.2(±4.14)%, respectively.
Pessoa et al. (1996), after cultivating the C. tropicalis IZ 1824
strain in a 1 dm3 bioreactor, obtained up to 10.1 g DM dm3 by
using sugar cane hydrolysate containing 25.4 g of reducing sugars
in 1 dm3
. In our research, the yeast biomass in the range of 45.4–
54.5 g DM, obtained from 2.8 dm3 of hydrolysate (containing
65.8 g of saccharides possible to be utilised dm3
) is a very promising
result. The crude protein content is close to the values presented
in the literature for fodder yeast (Harrison, 1993; Reed
and Nagodawithana, 1991). It should also be noted that both the
yield and protein content depend on many factors, including yeast
strain, medium composition, cultivation conditions and postcultivation
operations such as drying and storage.