Effects of Tween 80 on the removal, sorption and biodegradation of pyrene by Klebsiella oxytoca PYR-1

Environmental Pollution
Dong Zhang, Lizhong Zhu

Abstract

The sorption and biodegradation of pyrene by Klebsiella oxytoca PYR-1 (PYR-1) in the presence of nonionic surfactant Tween 80 were investigated toward a better understanding that how surfactants can affect biodegradation of hydrophobic organic compounds. The results indicated that Tween 80 can promote the removal, sorption and biodegradation of pyrene depending on the surfactant concentration, of which the most significant promotion of biodegradation was achieved at critical micelle concentration of Tween 80 with an improvement of 22.4%. A highly positive correlation (P<0.0001) was observed between the biodegradation and sorption of pyrene with the presence of Tween 80. Biosorption experiments showed the same trends as biodegradation and further illustrated the improved biodegradation of pyrene was mainly due to surfactant-facilitated sorption. The regularly changes of cell surface hydrophobicity suggested formation of more hydrophobic surface caused by surfactant sorption lead to stimulation of pyrene sorption.

References

Jun 16, 2000·Applied Microbiology and Biotechnology·I M BanatS S Cameotra
Oct 14, 2003·Environmental Toxicology and Chemistry·Randhir S Makkar, Karl J Rockne
Aug 26, 2004·Environmental Pollution·Anders R JohnsenHauke Harms
Nov 3, 2004·Environmental Pollution·Anthony VerdinRoger Durand
Nov 13, 2004·Journal of Environmental Quality·Jonathan W C WongBaoshan Xing
Jul 13, 2006·Environmental Toxicology and Chemistry·Sidney Man Ngai ChanNora Fung Yee Tam
Jul 20, 2007·Applied Microbiology and Biotechnology·XingZhong YuanXinMiao Xu
Dec 25, 2007·Advances in Colloid and Interface Science·Santanu Paria
Feb 19, 2008·Environmental Pollution·Lizhong Zhu, Ming Zhang
Mar 21, 2008·Biotechnology Advances·K Vijayaraghavan, Yeoung-Sang Yun
Oct 13, 2009·Journal of Biotechnology·Young Mi KimJong Moon Park
Feb 11, 2010·Applied Microbiology and Biotechnology·Avery GottfriedSimon Swift

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Citations

Feb 14, 2016·Environmental Science and Pollution Research International·Pablo S Sales, Mariana A Fernández
Jan 9, 2013·Journal of Environmental Management·Eman M ElsayedRamanbhai M Patel
Apr 14, 2016·Environmental Science and Pollution Research International·Lingwen WangLizhong Zhu
Jun 3, 2014·The Science of the Total Environment·Eman M ElSayed, Shiv O Prasher
Apr 23, 2019·International Journal of Phytoremediation·Magín González-MoscosoAntonio Trujillo-Narcía
Sep 20, 2020·Environmental Science and Pollution Research International·Li LuChunping Yang
Jun 18, 2021·Journal of Pesticide Science·Saki TakekoshiAkira Tachibana

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