Distribution of Bromophenols in Species of Marine Algae from Eastern Australia

Abstract

Forty-nine species (87 samples) of marine macroalgae from eastern Australia were analyzed by GC/MS for the key seafood flavor components 2- and 4-bromophenol, 2,4- and 2,6-dibromophenol, and 2,4, 6-tribromophenol. All five bromophenols were found in 62% of samples, four in 32% of samples, and three in the remaining 6% of samples. 2, 4,6-Tribromophenol was found in all samples and, with few exceptions, was present in the highest concentrations. The total bromophenol content determined on a wet-weight basis varied widely across species from 0.9 ng/g in the green alga Codium fragile to 2590 ng/g in the red alga Pterocladiella capillacea. Species with the highest concentrations of bromophenols were all collected from sites exposed at low tide. The study demonstrates the wide occurrence of bromophenols in marine algae and provides a possible source of such compounds in fish that feed predominantly on ocean plants. The possible effect that dietary marine algae has on the flavor of omnivorous ocean fish is discussed.

Composición química y actividad antioxidante del alga marina roja Bryothamnion triquetrum (S.G.Gmelin) Howe

“…Diferentes autores han referido la presencia cantidades significativas de compuestos bromados en las algas marinas rojas (Whitfield et al, 1999), que de hecho han sido consideradas como fuentes de estos compuestos, entonces los niveles de bromo encontrados en esta alga se corresponden con los hallazgos anteriores.…”

Occurrence of halogenated flame retardants in commercial seafood species available in European markets

“…Therefore, 2,4,6-TBP may occur in the marine environment through contaminated microplastics or as BFR degradation products. Besides the anthropogenic sources, natural occurrence of bromophenols in seafood may originate from algae or polychaetes, where these compounds are biosynthesized as secondary metabolites (Whitfield et al, 1999). However, information about 2,4,6-TBP is scarce and not recent.…”

Avaliação do sequestro do óxido nítrico (NO) pelo extrato metanólico da alga Bryothamnion triquetrum (Gmelin) Howe

“…Trabalhos anteriores demonstram que algas vermelhas possuem em sua composição bromofenóis e compostos aromáticos poliidroxilados (Whitfield et al, 1999) e que extratos obtidos a partir da Bryothamnion triquetrum apresentaram em sua composição polifenóis (Vidal et al, 2001;Vidal et al, 2006;Zubia et al, 2007), identificados, como já mencionado, como sendo o ácido trans-cinâmico, p-cumárico e ferúlico (Vidal et al, 2001). Zubia et al (2007) provou que extratos obtido a partir da Bryothamnion triquetrum possuem atividade antioxidante comparável à compostos comerciais como o BHT e o ácido ascórbico.…”