Kvasny Prum. 1983; 29(2): 32-35 | DOI: 10.18832/kp1983006

Degradation of reserve polysaccharides during aerobic starvation of backer's yeast.Peer-reviewed article

J. PÁCA

During aerobic starvation id baker's yeast changes in the level of reserve carbohydrates, cell number, viability and medium pH value were observed. The starvation was carried out at a temperature of 35 °Cin the physiological solution using two different initial pH values of the medium. At pH₀ 4.4 also formation of ethanol and acetate and actual and endogenous respirations were measured. The results revealed that the initial pH value of the medium affected the pattern of a glycogen and trehalose degradation and consequently, also the loos of viability and cell lysis. Changes in the quantity of end products and respiration activity showed a reciprocal dependence between metabolism of the starving cells and their environs.
(In Czech, English summary only)

Keywords: reserve polysaccharides, backer's yeast, degradation

Published: February 1, 1983