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IJCT Vol.13(6) [November 2006] >


Title: Studies on bacterial growth and lead(IV) biosorption using Bacillus subtilis
Authors: Hossain, Sk Masud
Anantharaman, N
Keywords: Bacteria
Biosorption
Incubation
Lead
Issue Date: Nov-2006
Publisher: CSIR
IPC CodeC02F3/00, C12N1/02
Abstract: Gram-positive bacterium Bacillus subtilis biosorbs lead(IV) ion from its aqueous solution. The maximum biosorption of lead is 97.68% (w/w) within 48 h of incubation time with optimum pH 4.5 and optimum temperature 40°C for 700 ppm initial loading of lead in a shake flask (optimum rpm 60). 7 days old and 30% (v/v) of suspension inoculum culture is used in the studies. Lead is measured by using atomic absorption spectrophotometer (AAS) into an air-acetylene flame and absorbance is measured at 283.3 nm. The maximum bacterial growth is noticed as 4.90108 cells/mL at optimum bioprocess conditions.
Page(s): 591-596
ISSN: 0975-0991 (Online); 0971-457X (Print)
Source:IJCT Vol.13(6) [November 2006]

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