Microorganism and medium compositions A. xylinum
BRCS was isolated from cellulose pellicles collected
from conventional acetic acid plants. Hestrin &
Schramm medium (HS) was used as the basic medium in
this study. HS medium was composed of 2Og/l glucose,
5 g/l yeast extract (Difco Laboratories, USA), 5 g/Z peptone
(Difco), 2.7 g/l Na2HP04 and 1.15 g/l citric acid
(9). The pH of the medium was adjusted to 6.0.