Please use this identifier to cite or link to this item: http://umt-ir.umt.edu.my:8080/handle/123456789/5402
Title: Isolation of bioflocculant-producing bacteria from Penaeus vannamei ponds for the production of extracellular polymeric substances
Authors: Nor A. Kasan
Mohd F. Amin Che Teh
Nurul F. Che Hashim
Zaharah Ibrahim
Nakisah Mat Amin
Nurarina A. Ghazali
Keywords: bioflocculant
flocculating activity
shrimp culture
protein concentration
Issue Date: 2016
Publisher: AACL Bioflux
Citation: Vol.6(9);1233-1243
Abstract: Bioflocculants are essential polymers with their flocculating activity depending on the characteristics of the secreted flocculants by bioflocculant-producing bacteria. However, the characteristics of bioflocculant produced by microorganisms were not investigated profoundly. In order to better understand these characteristics, determination of extracellular polymeric substances (EPS) from bioflocculant-producing bacteria were characterized in terms of protein concentrations. A total of 51 bioflocculant-producing bacteria isolates were screened from Pacific whiteleg shrimp, Penaeus vannamei culture ponds in Setiu, Terengganu, Malaysia. Screening of bioflocculant-producing bacteria were conducted through morphological approaches followed by protein extraction using Lowry assay method. The identified bioflocculant-producing bacteria includes Corynebacterium sp., Klebsiella sp., Lactobacillussp., Staphylococcus sp., Bacillus sp., Streptococcus sp., Vibrio spp., Neisseria sp., Serratia sp. and Yersinia sp., with the highest protein concentration of 829 mg mL-1 were attained by Staphylococcus sp. The various amounts of EPS concentration produced by different species of bacteria were dependent on their specific population growth and growth rate. Therefore, the establishment of bioflocculant-producing bacteria isolated from biofloc which showed high tendency for EPS production were performed successfully.
URI: http://hdl.handle.net/123456789/5402
Appears in Collections:Journal Articles



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