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

Suo Lian Guo; Xin Qing Zhao; Chun Wan; Zih You Huang; Yu Liang Yang; Md Asraful Alam; Shih Hsin Ho; Feng Wu Bai; Jo Shu Chang

doi:10.1016/j.biortech.2013.01.120

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

Suo Lian Guo
, Xin Qing Zhao^*
, Chun Wan
, Zih You Huang
, Yu Liang Yang
, Md Asraful Alam
, Shih Hsin Ho
, Feng Wu Bai
, Jo Shu Chang

^*Corresponding author for this work

Dalian University of Technology
National Taiwan University
Academia Sinica - Agricultural Biotechnology Research Center
National Cheng Kung University

Research output: Contribution to journal › Article › peer-review

138 Scopus citations

Abstract

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.

Original language	English
Pages (from-to)	285-289
Number of pages	5
Journal	Bioresource Technology
Volume	145
DOIs	https://doi.org/10.1016/j.biortech.2013.01.120
State	Published - 2013
Externally published	Yes

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

Keywords

Cell flocculation
Flocculating agent
Microalgae harvesting
Polysaccharide
Scenedesmus obliquus

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10.1016/j.biortech.2013.01.120

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@article{52641c124718413ba12f1f11b5ab8610,

title = "Characterization of flocculating agent from the self-flocculating microalga Scenedesmus obliquus AS-6-1 for efficient biomass harvest",

abstract = "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.",

keywords = "Cell flocculation, Flocculating agent, Microalgae harvesting, Polysaccharide, Scenedesmus obliquus",

author = "Guo, \{Suo Lian\} and Zhao, \{Xin Qing\} and Chun Wan and Huang, \{Zih You\} and Yang, \{Yu Liang\} and \{Asraful Alam\}, Md and Ho, \{Shih Hsin\} and Bai, \{Feng Wu\} and Chang, \{Jo Shu\}",

year = "2013",

doi = "10.1016/j.biortech.2013.01.120",

language = "英语",

volume = "145",

pages = "285--289",

journal = "Bioresource Technology",

issn = "0960-8524",

publisher = "Elsevier Ltd",

}

TY - JOUR

T1 - Characterization of flocculating agent from the self-flocculating microalga Scenedesmus obliquus AS-6-1 for efficient biomass harvest

AU - Guo, Suo Lian

AU - Zhao, Xin Qing

AU - Wan, Chun

AU - Huang, Zih You

AU - Yang, Yu Liang

AU - Asraful Alam, Md

AU - Ho, Shih Hsin

AU - Bai, Feng Wu

AU - Chang, Jo Shu

PY - 2013

Y1 - 2013

N2 - 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.

AB - 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.

KW - Cell flocculation

KW - Flocculating agent

KW - Microalgae harvesting

KW - Polysaccharide

KW - Scenedesmus obliquus

UR - https://www.scopus.com/pages/publications/84883458212

U2 - 10.1016/j.biortech.2013.01.120

DO - 10.1016/j.biortech.2013.01.120

M3 - 文章

C2 - 23419992

AN - SCOPUS:84883458212

SN - 0960-8524

VL - 145

SP - 285

EP - 289

JO - Bioresource Technology

JF - Bioresource Technology

ER -

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

Abstract

UN SDGs

Keywords

Access to Document

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