Enhanced Extracellular Polysaccharide Production and Self-Sustainable Electricity Generation for PAMFCs by Scenedesmus sp. SB1 | Zendy

Maria Joseph Angelaa Lincy | Zendy; Senthilkumar Nangan | Zendy; Rathinasamy Karpagam | Zendy; G. Gnana kumar | Zendy; Balasubramaniem Ashokkumar | Zendy; Perumal Varalakshmi | Zendy

Open Access

Enhanced Extracellular Polysaccharide Production and Self-Sustainable Electricity Generation for PAMFCs by Scenedesmus sp. SB1

Author(s) -

Maria Joseph Angelaa Lincy,

Senthilkumar Nangan,

Rathinasamy Karpagam,

G. Gnana kumar,

Balasubramaniem Ashokkumar,

Perumal Varalakshmi

Publication year - 2017

Publication title -

acs omega

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.779

H-Index - 40

ISSN - 2470-1343

DOI - 10.1021/acsomega.7b00326

Subject(s) - scenedesmus , response surface methodology , plackett–burman design , thermogravimetric analysis , chemistry , crystallinity , polysaccharide , thermal stability , nuclear chemistry , chemical engineering , chromatography , food science , algae , biochemistry , botany , biology , organic chemistry , engineering , crystallography

In this study, a freshwater microalga, Scenedesmus sp. SB1, was isolated, purified, and identified by its internal transcribed spacer region (ITS1-5.8S-ITS2). Media optimization through the Plackett-Burman Design and response surface methodology (RSM) showed a maximum exopolysaccharide (EPS) production of 48 mg/L (1.8-fold higher than that for unoptimized media). Characterization using gas chromatography-mass spectrometry, Fourier transform infrared, X-ray diffraction, and thermogravimetric analysis reveals that the EPS is a sulfated pectin polysaccharide with a crystallinity index of 15.2% and prompt thermal stability. Furthermore, the photoelectrogenic activity of Scenedesmus sp. SB1 inoculated in BG-11 and RSM-optimized BG-11 (ROBG-11) media was tested by cyclic voltammogram studies, revealing the potential of the inoculated strain in ROBG-11 toward photosynthetic algal microbial fuel cells over normal BG-11. To the best of our knowledge, functional group characterization, physical and thermal property and media optimization for EPS production by RSM and electrogenic activity studies are reported for the first time in Scenedesmus sp. SB1.

The content you want is available to Zendy users.

Already have an account? Click here to sign in.

Having issues? You can contact us here

Accelerating Research