Abstract：
:The microalgae Botryococcus braunii is widely recognized as a potentially important biofuel-feedstock whose commercial exploitation is limited by difficulties with its cultivation and harvesting. In this study, two B. braunii strains, Kossou-4 and Overjuyo-3 were successfully cultured at a 500 l-scale for 60-days. Harvesting by bio-flocculation with Aspergillus fumigatus at an optimum ratio of 1:40 of fungus to microalgal culture resulted in up to 98% recovery of biomass in the two strains. Ultimate analysis (C, N, H, S, ash, high heating value) and pyrolysis (analytical and preparative pyrolysis and GC-MS assays) showed that co-harvesting with fungi did not cause any impairment of the feedstock value of the microalgal biomass. This work represents the first report on the successful culturing and harvesting of these strains at a 500 l-scale using bio-flocculation. The use of A. fumigatus represents an efficient and economical method for the harvest of B. braunii for biofuel production.
journal_name
Bioresour Technoljournal_title
Bioresource technologyauthors
Al-Hothaly KA,Adetutu EM,Taha M,Fabbri D,Lorenzetti C,Conti R,May BH,Shar SS,Bayoumi RA,Ball ASdoi
10.1016/j.biortech.2015.04.113subject
Has Abstractpub_date
2015-09-01 00:00:00pages
117-23eissn
0960-8524issn
1873-2976pii
S0960-8524(15)00647-1journal_volume
191pub_type
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