Degradation kinetics of a potent antifouling agent, butenolide, under various environmental conditions
KAUST Grant NumberSA-C0040/UK-C0016
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Abstract© 2014 Elsevier Ltd. Here, we investigated the degradation kinetics of butenolide, a promising antifouling compound, under various environmental conditions. The active ingredient of the commercial antifoulant SeaNine 211, 4,5-dichloro-2-n-octyl-4-isothiazolin-3-one (DCOIT), was used as positive control. The results showed that the degradation rate increased with increasing temperature. Half-lives of butenolide at 4. °C, 25. °C and 40. °C were. >64. d, 30.5. d and 3.9. d, respectively. Similar half-lives were recorded for DCOIT: >64. d at 4. °C, 27.9. d at 25. °C and 4.5. d at 40. °C. Exposure to sunlight accelerated the degradation of both butenolide and DCOIT. The photolysis half-lives of butenolide and DCOIT were 5.7. d and 6.8. d, respectively, compared with 9.7. d and 14.4. d for the dark control. Biodegradation led to the fastest rate of butenolide removal from natural seawater, with a half-life of 0.5. d, while no obvious degradation was observed for DCOIT after incubation for 4. d. The biodegradative ability of natural seawater for butenolide was attributed mainly to marine bacteria. During the degradation of butenolide and DCOIT, a gradual decrease in antifouling activity was observed, as indicated by the increased settlement percentage of cypris larvae from barnacle Balanus amphitrite. Besides, increased cell growth of marine diatom Skeletonema costatum demonstrated that the toxicity of seawater decreased gradually without generation of more toxic by-products. Overall, rapid degradation of butenolide in natural seawater supported its claim as a promising candidate for commercial antifouling industry.
CitationChen L, Xu Y, Wang W, Qian P-Y (2015) Degradation kinetics of a potent antifouling agent, butenolide, under various environmental conditions. Chemosphere 119: 1075–1083. Available: http://dx.doi.org/10.1016/j.chemosphere.2014.09.056.
SponsorsThis study was supported by Grants from China Mineral Resources Research and Development Association (COMRRDA12SC01) and from the Research Grant Council of HKSAR government (662413), and the King Abdullah University of Science and Technology (SA-C0040/UK-C0016) and the State Key Laboratory in Marine Pollution, City University of Hong Kong.
CollectionsPublications Acknowledging KAUST Support
- Comparative safety of the antifouling compound butenolide and 4,5-dichloro-2-n-octyl-4-isothiazolin-3-one (DCOIT) to the marine medaka (Oryzias melastigma).
- Authors: Chen L, Ye R, Xu Y, Gao Z, Au DW, Qian PY
- Issue date: 2014 Apr
- Hepatic proteomic responses in marine medaka (Oryzias melastigma) chronically exposed to antifouling compound butenolide [5-octylfuran-2(5H)-one] or 4,5-dichloro-2-N-octyl-4-isothiazolin-3-one (DCOIT).
- Authors: Chen L, Sun J, Zhang H, Au DW, Lam PK, Zhang W, Bajic VB, Qiu JW, Qian PY
- Issue date: 2015 Feb 3
- Proteomic changes in brain tissues of marine medaka (Oryzias melastigma) after chronic exposure to two antifouling compounds: butenolide and 4,5-dichloro-2-n-octyl-4-isothiazolin-3-one (DCOIT).
- Authors: Chen L, Zhang H, Sun J, Wong YH, Han Z, Au DW, Bajic VB, Qian PY
- Issue date: 2014 Dec
- The effect of butenolide on behavioral and morphological changes in two marine fouling species, the barnacle Balanus amphitrite and the bryozoan Bugula neritina.
- Authors: Zhang YF, Wang GC, Ying X, Sougrat R, Qian PY
- Issue date: 2011 May
- SeaNine 211 as antifouling biocide: A coastal pollutant of emerging concern.
- Authors: Chen L, Lam JCW
- Issue date: 2017 Nov