A method has been presented for the observation of a large
number of enterotoxin A producers. Production of a relatively concentrated
toxin is achieved by the sac culture method. Further concentration,
if needed, is carried out by PM-10 membrane ultrafiltration
after centrifugation. The work is further improved by
trypsinization of...
A modified agar overlay technique for the preliminary screening
of antibiotic producing Streptomyces spp. has been developed and
compared to the routinely used shake flask method and the
unmodified agar overlay technique. The percentage of isolates
exhibiting antimicrobial activities was found to be greater in the
modified overlay technique.
Three...
This compilation of theses and dissertations (a part of the OSU Bibliographic Series) for the period 1970-1977 reflects this university's emphasis on research and graduate study. It may be viewed as an indicator of the contributions made to the state of Oregon through graduate study and research at Oregon State...