[The effect of acetic acid and furfural on yeast growth].
Acetic acid and furfural are normal components of the yeast hydrolysates. The influence of acetic acid in different concentrations (from 2 to 10 g/dm3) and furfural (from 0.2 to 0.8 g/dm3) on the growth of 8 yeast strains from the genus Candida under cultivation in synthetic nutrient media has been studied. It was established that some yeast strains absorb acetic acid better at pH 4.0-5.0, while others--only at pH 6.0 and at different concentrations of the acid in the nutrient media. Acetic acid in concentrations from 2 to 4 g/dm3 suppresses growth entirely in some strains, while in others growth was established. Acetic acid in concentrations over 8 g/dm3 inhibits growth in all 8 strains of the studied yeasts. Furforal in concentration to 0.4 g/dm3 in the synthetic nutrient media inhibits the growth in the 8 strains to a certain extent, while in concentration over 8 g/dm3 it stops the growth in all 8 yeast strains.
Lazarova
G
G
Kostov
V
V
Zhelev
S
S
Ivanova
V
V
Sokoloov
T
T
D000085:Acetates / Q000494:pharmacology*; D019342:Acetic Acid; D002175:Candida / Q000187:drug effects* / Q000254:growth & development; D003470:Culture Media; D003864:Depression, Chemical; D004305:Dose-Response Relationship, Drug; D005662:Furaldehyde / Q000494:pharmacology*; D006863:Hydrogen-Ion Concentration
D000085:Acetates; D003470:Culture Media; D005662:Furaldehyde; D019342:Acetic Acid
Izsledvane vliianieto na otsetnata kiselina i furfurala vŭrkhu rastezha na drozhdi.