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Sabu A Sarita S Pandey A Bogar B Szakacs G Soccol CR 《Applied biochemistry and biotechnology》2002,102(1-6):251-260
Solid-state fermentation of coconut oil cake has been carried out with Rhizopus oligosporus for the production of phytase. Phytase is used commercially in the animal feed industry to improve animal performance because
there is a substantial and growing interest among swine and poultry producers in the application of phytase to improve the
nutritional quality in animal feeds. Demonstrated benefits include improved feed yield ratios and reduction in the environmental
costs associated with the disposal of animal wastes. We report the production of extracellular phytase by R. oligosporus under solid-state fermentation using coconut oil cake as substrate. Maximal enzyme production (14.29 U/g of dry substrate)
occurred at pH 5.3, 30°C, and 54.5% moisture content after 96 h of incubation. The addition of extra nutrients to the substrate
resulted in inhibition of product formation. The results indicate the scope for production of phytase using coconut oil cake
as solid substrate without additional nutrients. 相似文献
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Solid-state fermentation of lignocellulosic plant residues from Brassica napus by Pleurotus ostreatus 总被引:3,自引:0,他引:3
Solid-state fermentation (SSF) of inedible parts of rapeseed was carried out using a white-rot fungus, Pleurotus ostreatus, to degrade lignocellulosic material for mycelial-single cell protein (SCP) production. This SSF system has the potential
to be adapted to a controlled ecological life support system in space travel owing to the lack of storage space. The system
for converting lignocellulosic material to SCP by P. ostreatus is simple; it can be carried out in a compact reactor. The fungal vegetative growth was better with a particle size of plant
material ranging from 0.42 to 10 mm, whereas lignin degradation of the lignocellulose was the highest with particle sizes
ranging from 0.42 to 0.84 mm. The addition of veratry alcohol (3,4-dimethoxybenzyl alcohol), hydrogen peroxide, and glycerol
promotes lignocellulose degradation by P. ostreatus. The enhancement of bioconversion was also observed when a gas-flow bioreactor was used to supply oxygen and to maintain
the constant moisture of the reactor. With this reactor, approx 85% of the material was converted to fungal and other types
of biomass after 60 d of incubation. 相似文献
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de Aráujo Álvaro Alberto Pastore Gláucia M. Berger Ralf G. 《Applied biochemistry and biotechnology》2002,98(1-9):747-751
The production of 6-pentyl-α-pyrone (6-PP), an unsaturated d-lactone with a strong coconut-like aroma was studied and compared with liquid and solid substrates. A fungi strain that produces
coconut aroma compound was selected. The liquid medium of the submerged culture was used to impregnate a solid support of
sugarcane bagasse in SSF (Solid State Fermentation). This substrate was adequate for growth and aroma production; the concentration
obtained using SSF was higher than using liquid fermentation process. In the present work, it is demonstrated that, by solid-state-fermentation
process, it is possible to produce 6-PP. The amount of 6-PP produced using a solid state substrate, following a 5 d culture,
was 3 mg/g dry matter. Therefore, the amount of 6-PP produced during solid-state-fermentation process is higher than that
reported in literature for submerged process. 相似文献