PMID- 33740605 OWN - NLM STAT- MEDLINE DCOM- 20210420 LR - 20210420 IS - 1873-6424 (Electronic) IS - 0269-7491 (Linking) VI - 278 DP - 2021 Jun 1 TI - Seaweeds fast EDC bioremediation: Supporting evidence of EE2 and BPA degradation by the red seaweed Gracilaria sp., and a proposed model for the remedy of marine-borne phenol pollutants. PG - 116853 LID - S0269-7491(21)00435-8 [pii] LID - 10.1016/j.envpol.2021.116853 [doi] AB - In the last few decades, Endocrine Disrupting Chemicals (EDCs) have taken significant roles in creating harmful effects to aquatic organisms. Many proposed treatment applications are time consuming, expensive and focus mainly on waste water treatment plants (WWTP), which are indeed a major aquatic polluting source. Nonetheless, the marine environment is the ultimate sink of many pollutants, e.g. EDCs, and has been largely neglected mainly due to the challenge in treating such salty and immense open natural ecosystems. In this study we describe the bromination and the yet unpresented degradation process of high concentrations (5 mg/L) of phenolic EDCs, by the marine red macroalgaeGracilaria sp. As shown, 17alpha-Ethinylestradiol (EE2), a well-known contraceptive drug, and one of the most persistent phenol EDCs in the environment, was eliminated from both the medium and tissues of the macroalga, in addition to the degradation of all metabolites as verified by the nil estrogenic activity recorded in the medium. Validation of the proposed bromination-degradation route was reinforced by identifying Bisphenol A (BPA) brominated degradation products only, following 168H of incubation in the presence of Gracilaria sp. As demonstrated in this assay for EE2, BPA and finally for paracetamol, it is likely that the phenol scavenging activity is nonspecific and, thus, possibly even a wider scope of various other phenol-based pollutants might be treated in coastal waters. As far as we know, Gracilaria sp. is the only marine sessile organism able of degrading various phenol based pollutants. The worldwide distribution of many Gracilaria species and their wide aquaculture knowhow, suggest that bioremediation based on these seaweeds is a possible cost effective progressive solution to the treatment of a wide scope of phenols at the marine environment. CI - Copyright (c) 2021 Elsevier Ltd. All rights reserved. FAU - Astrahan, Peleg AU - Astrahan P AD - Israel Oceanographic & Limnological Research, Ltd. The Yigal Alon Kinneret Limnological Laboratory, Israel. Electronic address: peleg.astrahan@ocean.org.il. FAU - Korzen, Leor AU - Korzen L AD - Israel Oceanographic & Limnological Research, Ltd. The National Institute of Oceanography. Tel Shikmona 8030, Haifa, 31080, Israel. FAU - Khanin, Marina AU - Khanin M AD - Clinical Biochemistry and Pharmacology, Faculty of Health Sciences, Ben-Gurion University of the Negev, Ben-Gurion Blvd, Beer-Sheva, 84105, Israel. FAU - Sharoni, Yoav AU - Sharoni Y AD - Clinical Biochemistry and Pharmacology, Faculty of Health Sciences, Ben-Gurion University of the Negev, Ben-Gurion Blvd, Beer-Sheva, 84105, Israel. FAU - Israel, Alvaro AU - Israel A AD - Israel Oceanographic & Limnological Research, Ltd. The National Institute of Oceanography. Tel Shikmona 8030, Haifa, 31080, Israel. LA - eng PT - Journal Article DEP - 20210302 PL - England TA - Environ Pollut JT - Environmental pollution (Barking, Essex : 1987) JID - 8804476 RN - 0 (Benzhydryl Compounds) RN - 0 (Endocrine Disruptors) RN - 0 (Environmental Pollutants) RN - 0 (Phenols) RN - 0 (Water Pollutants, Chemical) RN - 339NCG44TV (Phenol) SB - IM MH - Benzhydryl Compounds MH - Biodegradation, Environmental MH - Ecosystem MH - *Endocrine Disruptors/analysis MH - *Environmental Pollutants MH - *Gracilaria MH - Phenol MH - Phenols/analysis MH - *Seaweed MH - *Water Pollutants, Chemical/analysis OTO - NOTNLM OT - Biodegradation OT - Gracilaria sp OT - Marine organic pollution OT - Phenol EDCs COIS- Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper. EDAT- 2021/03/20 06:00 MHDA- 2021/04/21 06:00 CRDT- 2021/03/19 20:19 PHST- 2020/11/05 00:00 [received] PHST- 2021/02/07 00:00 [revised] PHST- 2021/02/23 00:00 [accepted] PHST- 2021/03/20 06:00 [pubmed] PHST- 2021/04/21 06:00 [medline] PHST- 2021/03/19 20:19 [entrez] AID - S0269-7491(21)00435-8 [pii] AID - 10.1016/j.envpol.2021.116853 [doi] PST - ppublish SO - Environ Pollut. 2021 Jun 1;278:116853. doi: 10.1016/j.envpol.2021.116853. Epub 2021 Mar 2.