Bio-Flocculation Property Analyses of Oleaginous Microalgae Auxenochlorella protothecoides UTEX 2341

The bio-flocculation ability of UTEX 2341 was studied for the purpose improving microalgae harvesting efficiency to cut high cost biofuel production. algae cells cultured under heterotrophic and municipal wastewater conditions were found have better self-flocculation ability, with flocculation rates 92% 85% at 2 h, respectively. Moreover, 16 freeze-dried powder samples different stress 0~72% an dosage 35 mg L?1. DIM, DCd1, DT28, L6S stable pH 3~9 temperatures 15~50 °C. For IM, LCd0.6, LMn2, LZn2, decreased or increased respectively temperatures. Though properties eight showed wide differences, their flocculant compositions almost same unknown components occupying large proportions. More studies needed be further carried out reveal mechanisms analyze abilities in practical application, which would conducive future large-scale application method also reduction.