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Food Chem

Title:		Particulate organohalogens in edible brown seaweeds
Author(s):		Leri AC; Dunigan MR; Wenrich RL; Ravel B;
Address:		"Department of Natural Sciences, Marymount Manhattan College, 221 E 71st St., New York, NY 10021, USA. Electronic address: aleri@mmm.edu. Department of Natural Sciences, Marymount Manhattan College, 221 E 71st St., New York, NY 10021, USA. National Institute of Standards and Technology, 100 Bureau Drive MS 8520, Gaithersburg, MD 20899, USA"
Journal Title:		Food Chem
Year:		2019
Volume:		20180811
Issue:
Page Number:		126 - 132
DOI:		10.1016/j.foodchem.2018.08.050
ISSN/ISBN:		1873-7072 (Electronic) 0308-8146 (Linking)
Abstract:		"Brown algae, rich in antioxidants and other bioactive compounds, are important dietary seaweeds in many cultures. Like other marine macroalgae, brown seaweeds are known to accumulate the halogens iodine and bromine. Comparatively little is known about the chemistry of chlorine in seaweeds. We used synchrotron-based X-ray absorption spectroscopy to measure total non-volatile organochlorine and -bromine in five edible brown seaweeds: Laminaria digitata, Fucus vesiculosus, Pelvetia canaliculata, Saccharina latissima, and Undaria pinnatifida. Organochlorine concentrations range from 120 to 630?ª+mg.kg(-1) dry weight and organobromine from 150 to 360?ª+mg.kg(-1), comprising mainly aromatic organohalogens in both cases. Aliphatic organochlorine exceeds aliphatic organobromine but is positively correlated with it among the seaweeds. Higher organochlorine levels appear in samples with more lipid moieties, suggesting lipid chlorination as a possible formation pathway. Particulate organohalogens are not correlated with antioxidant activity or polyphenolic content in seaweed extracts. Such compounds likely contribute to organohalogen body burden in humans and other organisms"
Keywords:		Halogens/*chemistry Humans Organic Chemicals/*analysis/*chemistry Phaeophyta/*chemistry Atr-ftir Edible seaweeds Infrared spectroscopy Macroalgae Organobromine Organochlorine Organohalogens X-ray absorption spectroscopy Xanes;
Notes:		"MedlineLeri, Alessandra C Dunigan, Marisa R Wenrich, Rosie L Ravel, Bruce eng England 2018/10/13 Food Chem. 2019 Jan 30; 272:126-132. doi: 10.1016/j.foodchem.2018.08.050. Epub 2018 Aug 11"