Effect of rhamnolipid biosurfactant on solubilization of polycyclic aromatic hydrocarbons

doi:10.1016/j.marpolbul.2015.09.059

	Effect of rhamnolipid biosurfactant on solubilization of polycyclic aromatic hydrocarbons
	Li, Shudong 1,2; Pi, Yongrui 1,2; Bao, Mutai 1,2; Zhang, Cong 1,2; Zhao, Dongwei 1,2; Li, Yiming 1,2; Sun, Peiyan 3,4; Lu, Jinren 2
刊名	MARINE POLLUTION BULLETIN
	2015-12-15
卷号	101 期号:1 页码:219-225
关键词	Rhamnolipid biosurfactant Polycyclic aromatic hydrocarbons (PAHs) Solubilization Naphthalene Phenanthrene Pyrene
ISSN号	0025-326X
DOI	10.1016/j.marpolbul.2015.09.059
英文摘要	Rhamnolipid biosurfactant-producing bacteria, Bacillus Lz-2, was isolated from oil polluted water collected from Dongying Shengli oilfield, China. The factors that influence PAH solubilization such as biosurfactant concentration, pH, ionic strength and temperature were discussed. The results showed that the solubilities of naphthalene, phenanthrene and pyrene increased linearly with the rise of rhamnolipid biosurfactant dose above the biosurfactant critical micelle concentration (CMC). Furthermore, the molar solubilization ratio (MSR) values decreased in the following order: naphthalene > phenanthrene > pyrene. However, the solubility percentage increased and followed the opposite order: pyrene > phenanthrene > naphthalene. The solubilities of PAHs in rhamnolipid biosurfactant solution increased with the rise of pH and ionic strength, and reached the maximum values under the conditions of pH 11 and NaCl concentration 8 g. L-1. The solubility of phenanthrene and pyrene increased with the rise of temperature. (c) 2015 Elsevier Ltd. All rights reserved.
资助项目	Program for Innovative Research Team in University[IRT1289]
WOS研究方向	Environmental Sciences & Ecology ; Marine & Freshwater Biology
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000367630700036
内容类型	期刊论文
源URL	[http://ir.fio.com.cn/handle/2SI8HI0U/3561]
专题	自然资源部第一海洋研究所
作者单位	1.Ocean Univ China, Minist Educ, Key Lab Marine Chem Theory & Technol, Qingdao 266100, Peoples R China; 2.Ocean Univ China, Coll Chem & Chem Engn, Qingdao 266100, Peoples R China; 3.State Ocean Adm, Key Lab Marine Spill Oil Identificat & Damage Ass, Qingdao 266033, Peoples R China; 4.State Ocean Adm, North China Sea Environm Monitoring Ctr, Qingdao 266033, Peoples R China
推荐引用方式 GB/T 7714	Li, Shudong,Pi, Yongrui,Bao, Mutai,et al. Effect of rhamnolipid biosurfactant on solubilization of polycyclic aromatic hydrocarbons[J]. MARINE POLLUTION BULLETIN,2015,101(1):219-225.
APA	Li, Shudong.,Pi, Yongrui.,Bao, Mutai.,Zhang, Cong.,Zhao, Dongwei.,...&Lu, Jinren.(2015).Effect of rhamnolipid biosurfactant on solubilization of polycyclic aromatic hydrocarbons.MARINE POLLUTION BULLETIN,101(1),219-225.
MLA	Li, Shudong,et al."Effect of rhamnolipid biosurfactant on solubilization of polycyclic aromatic hydrocarbons".MARINE POLLUTION BULLETIN 101.1(2015):219-225.