CHARACTERIZATION OF AN EXTRACELLULAR BIOFLOCCULANT PRODUCED BY COBETIA SP. OAUIFE ISOLATED FROM MARINESEDIMENT.
Dr Ugbenyen Moses Anthony and Mkwetshana N and Okoh AI (Published 2012)
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Ugbenyen AM, Mkwetshana N and Okoh AI (2012). Characterization of an extracellular bioflocculant produced by Cobetia sp. OAUIFE isolated from marinesediment. Journal of Pure and Applied Microbiology. 6(4): 1591- 1598.
Abstract:The characteristics of a bioflocculant produced by Cobetiasp. OAUIFE isolated
from sediment samples of Algoa Bay, South Africa was investigated. The acidic extracellular
polysaccharidebioflocculant optimally flocculated kaolin suspension at a dose of 0.4
mg/ml, neutral pH of 7, and Ca2+ as a coagulant aid. The bioflocculant is thermostable,
with a high residual flocculating activity of 72 % after heating at 100 oC for 30 min.
Thermogravimetric property of the bioflocculant revealed only about 50 % loss of initial
weight when heated at 500 oC. FTIR analysis of the compound bioflocculant indicated the
presence of hydroxyl, carboxyl and methoxyl functional groups. Scanning electron
microscopy (SEM) image revealed a crystal-linear spongy-like bioflocculant structure.
Key words: Cobetiasp., Bioflocculant, Polysaccharide, Thermostable.
|Item Type:||Journal article(non-copyrighted)|
|Format:||Word document, 15.26 KB|
|Keywords:||Cobetiasp., Bioflocculant, Polysaccharide, Thermostable.|
|Field of Study:||Biochemistry|
|Uploaded By:||Uddin Osemengbe Oyaimare|
|Date Added:||02 Nov 2017 10:29am|
|Last Modified:||02 Nov 2017|
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