Many amines are commonly found in food of both animal and vegetable origin, however only a small number is of interest since they produce diverse reactions when ingested and absorbed by humans. Among them, histamine and tyramine can cause intoxication symptoms. Marine algae are consumed widely by the eastern civilizations, and in the West, their consumption is expanding. Brazil does not have this tradition, but the diversity of species found throughout the Brazilian coast line make marine algae potentially useful for human ingestion. For such, it is necessary to perform chemical and biochemical studies. In this study, thirteen species of marine macroalgae were collected from Pacheco beach, on the Atlantic coast of Ceará State, Brazil. Preliminarily, they were analysed for histamine and tyramine using high performance liquid chromatography. These amines were identified by comparing the retention time of standard solutions of histamine dihydrochloride and tyramine hydrochloride with those of the alga extracts. Histamine and/or tyramine have not been found in quantities high enough to cause pharmacological actions in any of the thirteen species of marine macroalgae studied.
Marine alga; Histamine; Tyramine; Food poisoning
