1.1.2.8 acetic acid ADH from strain IFO3191 retains 36% of the activities after treating with 2% acetic acid at 30°C for 30 min, and 45% after incubation with 4% acetic acid at 25°C for 30 min, unstable in 4% acetic acid at 30°C 1.1.2.8 acetic acid ADH from strain MSU10 shows the highest resistance to acetic acid. The enzyme retains over 90% of the original activity after 30 min incubation with 2% acetic acid at 30°C and also with 4% acetic acid at 25°C, unstable in 4% acetic acid at 30°C 1.1.2.8 acetic acid ADH from strain SKU1108 retains 61% of the activities after treating with 2% acetic acid at 30°C for 30 min, and 79% after incubation with 4% acetic acid at 25°C for 30 min, unstable in 4% acetic acid at 30°C