Process Biochemistry, Vol.49, No.4, 660-667, 2014
Potential use of nylon scouring pad cubes attachment method for pectinase production by Aspergillus niger HFD5A-1
This study investigated the novel use of scouring pad cubes as a support matrix for immobilization of fungal cell to enhance the pectinase production. Nylon scouring pad cubes were used for immobilized Aspergillus niger I-IFD5A-1 cells for pectinase production in flask submerge fermentation system. The enzyme activity of immobilized cell in scouring pad cubes gave higher activity compared to free cells. Various physical parameters for culture condition were studied to evaluate its effects on pectinase production. The maximum enzyme activity obtained was 11.05 U/mL on the 6th day of cultivation after using the optimized parameters of 6 scouring pad cubes, 1 x 10(7) spores/mL of inoculum size, agitation speed of 150 rpm and incubated at 30 C. The use of nylon scouring pad cubes gave an increment of about 335.0% of pectinase production (11.05 U/mL) compared to free cells (2.54 U/mL). The results therefore show scouring pad cubes could be a favorable carrier to immobilize the fungal cells for higher enzyme production in submerged fermentation. (C) 2014 Elsevier Ltd. All rights reserved.
Keywords:Aspergillus niger;Immobilization;Nylon scouring pad;Pectinase;Optimization;Submerged fermentation