PMID: 15382861Sep 24, 2004Paper

Commercially available chemicals that mimic a deposit feeder's (Arenicola marina) digestive solubilization of lipids

Environmental Science & Technology
Ian M Voparil, Lawrence M Mayer

Abstract

To develop a simple and cost-effective bioavailability test for sediment-bound contaminants, the solubilization strengths of mixtures of four commercially available surfactants and four proteins were compared to that of digestive fluids from a deposit-feeding benthic polychaete Arenicola marina. Initial tests indicated that sodium taurocholate, a vertebrate bile salt, was the most accurate mimic of A. marina gut fluids' solubilization of individual polycyclic aromatic hydrocarbons (PAH). Further testing with nutritional lipids and other hydrophobic contaminants confirmed the similarities of these fluids. Bovine serum albumin (BSA) solubilization of PAH was the most efficient of all the proteins tested. A cocktail of sodium taurocholate and BSA was compared to A. marina's solubilization of 12 PAH from four different contaminated sediments (from Boston, Charleston, Jacksonville, and San Diego harbors). The two solutions released most PAH to similar extents; 40 of 48 PAH-sediment combinations were released at amounts within a factor of 2 in cocktail and gut fluid solutions. Therefore, the cocktail may serve as a surrogate for real gut fluids and allow easier adoption of the in vitro incubation approach to bioavailability testing.

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Citations

Apr 5, 2016·Environmental Science & Technology·Jay M ThompsonRichard G Luthy
Mar 1, 2012·Environmental Pollution·Huan ZhongDouglas Evans
Apr 10, 2007·Environmental Pollution·Andrew TurnerGillian A Glegg
Sep 25, 2014·Annual Review of Marine Science·Peter A JumarsSara M Lindsay
May 4, 2011·Integrated Environmental Assessment and Management·Henriette SelckMartine van den Heuvel-Greve
Dec 1, 2009·Ecotoxicology·Shinsuke Tanabe, Tu Binh Minh
Dec 14, 2007·Environmental Science & Technology·Emma L TeutenRichard C Thompson
Jan 15, 2019·Environmental Science & Technology·Nur Hazimah Mohamed Nor, Albert A Koelmans
Aug 20, 2021·Environmental Science and Pollution Research International·Bettie CormierSteffen H Keiter
Oct 21, 2006·Environmental Science & Technology·Huan Zhong, Wen-Xiong Wang

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