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Mechanism behind microalgal self-flocculation

ABSTRACT: Self-flocculation driven by gravity has shown as promising microalgal harvesting technology due to no requirement for additives and energies. However, the inherent unclear mechanism impedes its efficiency enhancement and commercial application. Current researches most only focus on the protein and carbohydrate content in extracellular polymeric substances (EPS), while further in-depth investigation is required on the detailed information of EPS components and their roles in self-flocculation.

ORGANISM(S): Chlorella Sp.

SUBMITTER: Shijian Ge

PROVIDER: PXD024007 | iProX | Fri Feb 05 00:00:00 GMT 2021

REPOSITORIES: iProX

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Enhanced Secretions of Algal Cell-Adhesion Molecules and Metal Ion-Binding Exoproteins Promote Self-Flocculation of <i>Chlorella</i> sp. Cultivated in Municipal Wastewater.

Chen Zhipeng Z Qiu Shuang S Yu Ziwei Z Li Mengting M Ge Shijian S

Environmental science & technology 20210823 17

The mechanism of self-flocculation remains unclear, partially impeding its efficiency enhancement and commercial application of microalgae-based municipal wastewater (MW) bioremediation technology. This study revealed the contributions of exoproteins [PN, proteins in extracellular polymeric substances (EPS)] to the separation of indigenous microalgae from treated MW. Compared to the low light intensity group, the high light intensity (HL) group produced <i>Chlorella</i> sp. with 4.3-fold higher ...[more]

PMID: 34424674

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