Appeal No. 1996-2215
Application No. 08/101,093
b) venting some of the exhaust gas from the culture tank
to maintain the partial pressure of the carbon dioxide in the
culture tank within a prescribed range; and then
c) releasing to the atmosphere some of the exhaust gas
which has been vented and recycling the remainder of exhaust
gas, which has been vented but not released and which includes
carbon dioxide, back into the culture medium in the culture
tank without adsorbing carbon dioxide from such exhaust,[sic]
gas whereby the microbiological process is cost effective.
35. A recycling process which comprises:
recycling an exhaust gas, which includes carbon dioxide
and which is produced by a microbiological process carried out
in a culture medium, back into the culture medium without
adsorbing carbon dioxide from the exhaust gas and enriching
with oxygen the exhaust gas which is recycled back into the
culture medium.
I. REFERENCES
The references relied on by the examiner are:
Arcuri et al. (Arcuri) 4,413,058 Nov. 01,
1983
European Patent Application (Shimizu) 0092771, published
Nov. 2, 1983.
Mori et al. (Mori), “High Density Production of Sorbose
from Sorbitol by Fed-Batch Culture with DO-Stat,” Journal
Chemical Engineering Japan, Vol. 14, No. 1, pp. 65-70 (1981).
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