Abstract:
:Aspergillus awamori NRRL 4869 was cultured on the solid substrate, wheat bran, in a modified Rollacell apparatus to produce alpha-galactosidase and invertase. The swivel cap on the elongated bottle permits the introduction of air while the bottle rotates. Parameters of air flow rate (0.05-0.2 liter/kg/min), rpm (0.15-15 rpm), and weight of solids (150 and 300 g) were varied. At low air flow rates (0.05 liter/kg solids/min), alpha-galactosidase production was minimal independent of the rotation rate. At 0.15 rpm and 0.2 liter/kg solids/min air flow rate, invertase production ceased after five days; whereas alpha-galactosidase production continued. The modified Rollacell can be a useful apparatus for studying solid-substrate cultures.
journal_name
Biotechnol Bioengjournal_title
Biotechnology and bioengineeringauthors
Silman RWdoi
10.1002/bit.260220213subject
Has Abstractpub_date
1980-02-01 00:00:00pages
411-20issue
2eissn
0006-3592issn
1097-0290journal_volume
22pub_type
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