TY - JOUR
T1 - Uranium adsorption and oil emulsification by extracellular polysaccharide (EPS) of a halophilic unicellular marine cyanobacterium Synechococcus elongatus BDU130911
AU - Rashmi, Vijayaragavan
AU - Darshana, Arulraj
AU - Bhuvaneshwari, Thangaraj
AU - Saha, Sushanta Kumar
AU - Uma, Lakshmanan
AU - Prabaharan, Dharmar
N1 - Publisher Copyright:
© 2021 The Authors
PY - 2021/1
Y1 - 2021/1
N2 - An integrated approach on uranium adsorption and emulsification of oils was evaluated using extracellular polysaccharides (EPS) of a marine unicellular cyanobacterium Synechococcus elongatus BDU130911. EPS gel of S. elongatus BDU130911 was able to adsorb uranium at the rate of 75% per gram dry weight. Uranium follows a monolayer adsorption onto EPS gel surface as revealed by Langmuir isotherm. Energy-dispersive X-ray fluorescence (EDXRF) analysis and powder X-ray diffraction analysis further confirms the uranium adsorption to the EPS gel of S. elongatus BDU130911. The culture filtrate of S. elongatus BDU130911 exhibited biosurfactant property and formed a stable emulsion with petrol (EI24 51.2%) due to the presence of uronic acid and rhamnose sugar. These findings suggest that the EPS of S. elongatus BDU130911 biomass has the potential to be used as a green adsorbing agent for the effective extraction of radionucleotide and petroleum hydrocarbons.
AB - An integrated approach on uranium adsorption and emulsification of oils was evaluated using extracellular polysaccharides (EPS) of a marine unicellular cyanobacterium Synechococcus elongatus BDU130911. EPS gel of S. elongatus BDU130911 was able to adsorb uranium at the rate of 75% per gram dry weight. Uranium follows a monolayer adsorption onto EPS gel surface as revealed by Langmuir isotherm. Energy-dispersive X-ray fluorescence (EDXRF) analysis and powder X-ray diffraction analysis further confirms the uranium adsorption to the EPS gel of S. elongatus BDU130911. The culture filtrate of S. elongatus BDU130911 exhibited biosurfactant property and formed a stable emulsion with petrol (EI24 51.2%) due to the presence of uronic acid and rhamnose sugar. These findings suggest that the EPS of S. elongatus BDU130911 biomass has the potential to be used as a green adsorbing agent for the effective extraction of radionucleotide and petroleum hydrocarbons.
KW - Biosurfactant
KW - EDXRF
KW - Extracellular polysaccharide (EPS)
KW - FTIR
KW - Marine cyanobacteria
KW - Uranium adsorption
UR - http://www.scopus.com/inward/record.url?scp=85106607447&partnerID=8YFLogxK
U2 - 10.1016/j.crgsc.2020.100051
DO - 10.1016/j.crgsc.2020.100051
M3 - Article
AN - SCOPUS:85106607447
SN - 2666-0865
VL - 4
JO - Current Research in Green and Sustainable Chemistry
JF - Current Research in Green and Sustainable Chemistry
M1 - 100051
ER -