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Optimization of Cd2+ removal by the cyanobacterium Synechocystis pevalekii using the response surface methodology

Paper ID Volume ID Publish Year Pages File Format Full-Text
35659 45100 2009 4 PDF Available
Title
Optimization of Cd2+ removal by the cyanobacterium Synechocystis pevalekii using the response surface methodology
Abstract

Response surface methodology (RSM) has been used to optimize the critical parameters responsible for higher Cd2+ removal by a unicellular cyanobacterium Synechocystis pevalekii. A three-level Box–Behnken factorial design was used to optimize pH, biomass and metal concentration for Cd2+ removal. A coefficient of determination (R2) value (0.99), model F-value (86.40) and its low p-value (F < 0.0001) along with lower value of coefficient of variation (5.61%) indicated the fitness of response surface quadratic model during the present study. At optimum pH (6.48), biomass concentration (0.25 mg protein ml−1) and metal concentration (5 μg ml−1) the model predicted 4.29 μg ml−1 Cd2+ removal and experimentally, 4.27 μg ml−1 Cd2+ removal was obtained.

Keywords
Cadmium removal; Optimization; Response surface methodology; Box–Behnken design; Synechocystis; Cyanobacterium
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Publisher
Database: Elsevier - ScienceDirect
Journal: Process Biochemistry - Volume 44, Issue 1, January 2009, Pages 118–121
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
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Price was $35.95
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Price after discount Only $4.95
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