Laboratory study on the ecological impact of sophorolipid used for harmful algae elimination

Xiaoxia Sun; Eunki Kim; Song Sun

doi:10.1007/s00343-010-9962-9

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Laboratory study on the ecological impact of sophorolipid used for harmful algae elimination

OriginalPaper | Updated：2023-05-16

- Laboratory study on the ecological impact of sophorolipid used for harmful algae elimination
- Laboratory study on the ecological impact of sophorolipid used for harmful algae elimination
- 海洋湖沼学报（英文） 2010年28卷第6期页码：1240-1247
- Affiliations：
  
  1. Jiaozhou Bay Marine Ecosystem Research Station Institute of Oceanology Chinese Academy of Sciences
  2. Department of Biological Engineering Inha University
  3. Key Laboratory of Marine Ecology and Environmental Sciences Institute of Oceanology Chinese Academy of Sciences
- Author bio：
- Funds：
  
  Supported by the National Natural Science Foundation of China (No. 40506026, 40876083, 40631008);the Knowledge Innovation Program of the Chinese Academy of Sciences (No. KZCX2-YW-Q07-01) and the National Basic Research Priorities Program (No. 2006CB400606)
- DOI：10.1007/s00343-010-9962-9
  中图分类号：
- 网络首发：2010-11-10，
  
  纸质出版：2010
- Accepted：
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Laboratory study on the ecological impact of sophorolipid used for harmful algae elimination[J]. 海洋湖沼学报（英文）, 2010,28(6):1240-1247.

Sun, X., Kim, E. & Sun, S. Laboratory study on the ecological impact of sophorolipid used for harmful algae elimination., Chin. J. Ocean. Limnol. 28, 1240–1247 (2010). https://doi.org/10.1007/s00343-010-9962-9
Laboratory study on the ecological impact of sophorolipid used for harmful algae elimination[J]. 海洋湖沼学报（英文）, 2010,28(6):1240-1247. DOI： 10.1007/s00343-010-9962-9.

Sun, X., Kim, E. & Sun, S. Laboratory study on the ecological impact of sophorolipid used for harmful algae elimination., Chin. J. Ocean. Limnol. 28, 1240–1247 (2010). https://doi.org/10.1007/s00343-010-9962-9 DOI：

摘要

Abstract

We studied the role of sophorolipid in inhibiting harmful algae bloom (HAB). Different sophorolipid concentrations were tested on marine microalgae

zooplankton

fish

and bivalve (Mytilus edulis) in laboratory. The result shows that sophorolipid could inhibit the growth of algal species selectively. Among three algae species selected

Platymonas helgolandica var. tsingtaoensis was promoted with increasing sophorolipid concentration; Isochrysis galbana was inhibited seven days later in sophorolipid concentration below 40 mg/L; and Nitzschia closterium f. minutissima was inhibited obviously in only a high sophorolipid concentration over 20 mg/L. Therefore

sophorolipid in a low concentration at <20 mg/L could remove certain harmful algae species effectively without harming other non-harmful microalgae. For other animals

sophorolipid could inhibit the growth of ciliate Strombidium sp. by 50% at 20 mg/L sophorolipid concentration after 96 h. The concentration in 96-h LC50 for Calanus sinicus

Neomysis awatschensis

Lateolabrax japonicus

and Paralichthys olivaceus was 15

150

and 110 mg/L

respectively. The 24 h LC50 value for Artemia salina was 600 mg/L. The relative clearance rate of mussel Mytilus edulis decreased to 80%

40%

and 20% of the control group after being exposed to 20

and 100 mg/L sophorolipid for 24 h. Therefore

the toxicity for mitigation of harmful algae bloom at previously recommended concentration of 5–20 mg/L sophorolipid is low for most tested organisms in this reaserch.

关键词

Keywords

references

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