Abstract
Resistance of 19 mold- and 6 yeast- species against 15 commercial
disinfectants was investigated by a suspension-method in which the
fungicidal effect and germination time were determined at 20 °C.
Disinfectants containing 0.5 % dodecyldiethylentriaminacetic acid,
10 g/l chloramine-T, 2.0 % formaldehyde, 0.1 % potassium
hydroxide, 3.0 % hydrogen peroxide or 0.3 % peracetic acid were
ineffective as fungicides. The fungicidal effect of quaternary
ammonium compounds and chlorine compounds showed great variance
between species and among the 6 tested isolates of Penicillium
roqueforti var. roqueforti. The examined isolates of P. roqueforti
var. carneum, P. discolor, Aspergillus versicolor and Eurotium
repens were resistant to different quaternary ammonium compounds.
Conidia and vegetative cells were killed by alcohols, whereas
ascospores were resistant. Resistance of ascospore to 70% ethanol
increased with age. Both P. roqueforti var. roqueforti and E.
repens showed great variability of resistance within isolates of
each specie.
| Original language | English |
|---|---|
| Journal | Journal of Food Protection |
| Volume | 59 |
| Pages (from-to) | 268-275 |
| ISSN | 0362-028X |
| Publication status | Published - 1996 |