ISSN:
0006-3592
Keywords:
Chemistry
;
Biochemistry and Biotechnology
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Biology
,
Process Engineering, Biotechnology, Nutrition Technology
Notes:
Aspergillus awamori NRRL 4869 was cultured on the solid substrate, wheat bran, in a modified Rollacell apparatus to produce α-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 solid/min), α-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 α-galactosidase production continued. The modified Rollacell can be a useful apparatus for studying solid-substrate cultures.
Additional Material:
2 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/bit.260220213
