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

2014; Elsevier BV; Volume: 171; Linguagem: Inglês

10.1016/j.biortech.2014.08.038

1873-2976

Ahmad H. Rajab Aljuboori, Yoshimitsu Uemura, Noridah Osman, Suzana Yusup,

Polymer-Based Agricultural Enhancements

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 Ca2+ ion.