Evaluation of flocculation and lipid extraction of Chlorella sp. cultivated in concentrated desalination

Quimica nova

Olivo, Gisele¹  Morioka, Luiz Rodrigo Ito¹  Sant'Anna, Ernani Sebastião¹  Matos, Ângelo Paggi¹ 

[1] Universidade Federal de Santa Catarina, Florianópolis, Brasil

关键词: concentrated desalination;    flocculation;    microalga oil.;   

DOI  :  10.1590/S0100-40422014000100009

学科分类：化学（综合）

来源: Sociedade Brasileira de Quimica

【 摘 要 】

Chlorellasp. was used to assess algal lipid production with concentrated desalination.In order to investigate the action of the flocculating agent calcium chlorideand pH, a Box-Behnken Design and a Central Composite Design (CCD) were carriedout. Also, Soxhlet and Supercritical Fluid Extraction (SFE), with and withoutsonication lipid extraction methods, were examined. The optimal flocculationconditions were pH 10.0 and 2.0 g/L of calcium chloride concentration. The highestlipid content of Chlorella sp. was obtained using the Soxhlet extractionmethod. The most abundant fatty acid extracted by Soxhlet and SFE, with andwithout sonication, was palmitic acid, whose proportions were 57.4%, 35.3% and25.5%, respectively.

【 授权许可】

CC BY