Screening of surfactants for harmful algal blooms mitigation

doi:10.1016/j.marpolbul.2003.11.021

	Screening of surfactants for harmful algal blooms mitigation
	Sun, XX; Han, KN ; Choi, JK ; Kim, EK
	2004-05-01
发表期刊	MARINE POLLUTION BULLETIN
ISSN	0025-326X
卷号	48 期号:9-10 页码:937-945
文章类型	Article
摘要	Screening experiments were conducted in order to find promising synthetic surfactants for harmful algal blooms (HABs) mitigation. The chemically synthesized surfactant cocamidopropyl betaine (CAPB) showed characteristics of relatively high inhibition efficiency, high biodegradability and low cost. The motility inhibition ratios of 10 mg/L CAPB on Cochlodinium polykrikoides and Alexandrium tamarense were about 60% after 5 min. The biodegradation test indicated that the half-life of CAPB in seawater was shorter than one day and 90% was biodegraded after five days under the initial concentration of 100 mg/L at 25degreesC. Further cell lysis experiments revealed the selective lysis effect of CAPB on different HAB organisms. More than 90% of C. polykrikoides lysed at the concentration of 10 mg/L CAPB after 24 h and at 15 mg/L CAPB after 4 h, whereas the lysis effect of CAPB on A. tamarense was slight, no more than 10% after 2 h interaction with 50 mg/L CAPB. This research provided preliminary data for CAPB as a candidate in harmful algal blooms mitigation and pointed out unresolved problems for its practical application in the meantime. (C) 2003 Elsevier Ltd. All rights reserved.; Screening experiments were conducted in order to find promising synthetic surfactants for harmful algal blooms (HABs) mitigation. The chemically synthesized surfactant cocamidopropyl betaine (CAPB) showed characteristics of relatively high inhibition efficiency, high biodegradability and low cost. The motility inhibition ratios of 10 mg/L CAPB on Cochlodinium polykrikoides and Alexandrium tamarense were about 60% after 5 min. The biodegradation test indicated that the half-life of CAPB in seawater was shorter than one day and 90% was biodegraded after five days under the initial concentration of 100 mg/L at 25degreesC. Further cell lysis experiments revealed the selective lysis effect of CAPB on different HAB organisms. More than 90% of C. polykrikoides lysed at the concentration of 10 mg/L CAPB after 24 h and at 15 mg/L CAPB after 4 h, whereas the lysis effect of CAPB on A. tamarense was slight, no more than 10% after 2 h interaction with 50 mg/L CAPB. This research provided preliminary data for CAPB as a candidate in harmful algal blooms mitigation and pointed out unresolved problems for its practical application in the meantime. (C) 2003 Elsevier Ltd. All rights reserved.
关键词	Alexandrium Tamarense Cochlodinium Polykrikoides Cocamidopropyl Betaine Harmful Algal Blooms Mitigation Surfactants
学科领域	Environmental Sciences ; Marine & Freshwater Biology
DOI	10.1016/j.marpolbul.2003.11.021
URL	查看原文
收录类别	SCI
语种	英语
WOS记录号	WOS:000221395200024
引用统计	被引频次：53[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/2746
专题	海洋生态与环境科学重点实验室
作者单位	1.Inha Univ, Dept Biol Engn, Inchon 402751, South Korea 2.Inha Univ, Reg Res Ctr Coastal Environm Yellow Sea, Inchon 402751, South Korea 3.Inha Univ, Dept Oceanog, Inchon 402751, South Korea 4.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China
推荐引用方式 GB/T 7714	Sun, XX,Han, KN,Choi, JK,et al. Screening of surfactants for harmful algal blooms mitigation[J]. MARINE POLLUTION BULLETIN,2004,48(9-10):937-945.
APA	Sun, XX,Han, KN,Choi, JK,&Kim, EK.(2004).Screening of surfactants for harmful algal blooms mitigation.MARINE POLLUTION BULLETIN,48(9-10),937-945.
MLA	Sun, XX,et al."Screening of surfactants for harmful algal blooms mitigation".MARINE POLLUTION BULLETIN 48.9-10(2004):937-945.

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