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. 2014 Nov:171:66-70.
doi: 10.1016/j.biortech.2014.08.038. Epub 2014 Aug 19.

Production of a bioflocculant from Aspergillus niger using palm oil mill effluent as carbon source

Ahmad H Rajab Aljuboori  1 , Yoshimitsu Uemura  2 , Noridah Binti Osman  2 , Suzana Yusup  3
Affiliations

Production of a bioflocculant from Aspergillus niger using palm oil mill effluent as carbon source

Ahmad H Rajab Aljuboori et al. Bioresour Technol. 2014 Nov.

Abstract

This study evaluated the potential of bioflocculant production from Aspergillus niger using palm oil mill effluent (POME) as carbon source. The bioflocculant named PM-5 produced by A. niger showed a good flocculating capability and flocculating rate of 76.8% to kaolin suspension could be achieved at 60 h of culture time. Glutamic acid was the most favorable nitrogen source for A. niger in bioflocculant production at pH 6 and temperature 35 °C. The chemical composition of purified PM-5 was mainly carbohydrate and protein with 66.8% and 31.4%, respectively. Results showed the novel bioflocculant (PM-5) had high potential to treat river water from colloids and 63% of turbidity removal with the present of Ca(2+) ion.

Keywords: Aspergillus niger; Bioflocculant; Extracellular biopolymeric substance; Microbial flocculant; Palm oil mill effluent.

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