Send to:

Choose Destination
See comment in PubMed Commons below
Bioresour Technol. 2013 Oct;145:285-9. doi: 10.1016/j.biortech.2013.01.120. Epub 2013 Jan 29.

Characterization of flocculating agent from the self-flocculating microalga Scenedesmus obliquus AS-6-1 for efficient biomass harvest.

Author information

  • 1School of Life Science and Biotechnology, Dalian University of Technology, Dalian 116024, China.


In the present work, the extracellular biopolymers from the self-flocculating microalga Scenedesmus obliquus AS-6-1 were studied. It was revealed that the self-flocculation of the microalgal cells was mediated by cell wall-associated polysaccharides with a molecular weight of 127.9 kDa. Sugar compositions analysis indicated that the monomers consist of glucose, mannose, galatose, rhamnose and fructose with the molar ratio of 8:5:3:2:1. Addition of 0.6 mg/L purified flocculating agent resulted in the fast flocculation of freely suspended cells of S. obliquus and Chlorella vulgaris. The flocculating activity is stable between pH 6 and 8 and at 20-60°C.

Copyright © 2013 Elsevier Ltd. All rights reserved.


Cell flocculation; Flocculating agent; Microalgae harvesting; Polysaccharide; Scenedesmus obliquus

[PubMed - indexed for MEDLINE]
PubMed Commons home

PubMed Commons

How to join PubMed Commons

    Supplemental Content

    Full text links

    Icon for Elsevier Science
    Loading ...
    Write to the Help Desk