Kvasny Prum. 1981; 27(4): 90-92 | DOI: 10.18832/kp1981015

Microbiological recovery of agricultural waste. I. Study of inhibitors in hydrolysates.Peer-reviewed article

D. LONGAUEROVÁ, D. HAĽAMA

The results obtained show, that the tested inhibitors influence strongly growth rates at pH 4,5 and 6 of C. tropicalis 78. Low bacterial contamination of the yeast growing under non aseptic conditions at pH 6 can be explained by their action - considerably prolonged lag phase and reduced growth rate of bacteria. Combinations of inhibitors enhance the inhibitory effect. The combination of80 mMformic acid and12 mMpropionic acid has been shown as particularly advantageous. It prolonged significantly the lag phase of bacteria while the lag phase of S. tropicalis 78 was not influenced at pH 6. This combination could be used as suitable protection from bacterial contamination.
(In Slovak, English summary only)

Keywords: microbiology, agricultural waste, inhibitors

Published: April 1, 1981