title: Chlorophyta and Rhodophyta macroalgae: a source of health promoting phytochemicals.
abstract: A detailed study of the lipophilic composition of Codium tomentosum, Ulva lactuca, Gracilaria vermiculophylla and Chondrus crispus macroalgae cultivated in the Portuguese coast was carried out by gas chromatography-mass spectrometry before and after alkaline hydrolysis. Their long-chain aliphatic alcohols and monoglycerides compositions are reported for the first time. Additionally, other new compounds were also identified: phytol and neophytadiene in C. tomentosum, U. lactuca and G. vermiculophylla and stigmasterol, α-tocopherol and 24-methylenecholesterol in C. tomentosum. The lipophilic fraction of the studied macroalgae are mainly constituted by fatty acids (110.1-1030.5mgkg(-1) of dry material) and sterols (14.8-1309.1mgkg(-1) of dry material). C. tomentosum showed to be a valuable source of stigmasterol (1229.0mgkg(-1) of dry material) and α-tocopherol (21.8mgkg(-1) of dry material). These results are a relevant contribution for the valorisation of these macroalgae species as sources of valuable phytochemicals.
authors: CICECO and Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal. Electronic address: santos.sonia@ua.pt.
authors: Sonia A O
authors: SA
authors: Santos
authors: CICECO and Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal.
authors: Carla
authors: C
authors: Vilela
authors: CICECO and Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal.
authors: Carmen S R
authors: CS
authors: Freire
authors: ALGAplus - Prod. e comerc. de algas e seus derivados, Lda., 3830-196 Ílhavo, Portugal.
authors: Maria H
authors: MH
authors: Abreu
authors: QOPNA and Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal.
authors: Silvia M
authors: SM
authors: Rocha
authors: CICECO and Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal.
authors: Armando J D
authors: AJ
authors: Silvestre
mesh_terms: D000460:Chlorophyta / Q000737:chemistry*; D064209:Phytochemicals / Q000032:analysis*; D000461:Rhodophyta / Q000737:chemistry*; D012624:Seaweed / Q000737:chemistry*
chemical_list: D064209:Phytochemicals
keywords: Chondrus crispus; Codium tomentosum; Gracilaria vermiculophylla; Lipophilic composition; Macroalgae; Ulva lactuca