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The control of gas phase, by periodic pressure oscillation coupled with forced aeration, was developed for improvement of cellulase production by Penicillium decumbens in solid-state culture (SSC). The effects of pressure oscillation amplitude, frequency, and airflow rate on cellulase production were investigated in detail. The technique was shown to be effective in the control of temperature in the...
Charcoal impregnated with a medium was used to culture Rhizobium leguminosarum in a periodic pressure oscillating, solid-state fermenter. Effects of pressure oscillation amplitude, the span of high pressure, and the duration of low pressure on the growth of R. leguminosarum were investigated in detail. At 30 o C and 3 atm, R. leguminosarum was fermented and subsequently reached 4.9x10 ...
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