Fatty acids composition and profiling of nine abundant marine Macroalgae, Egypt

This study analyzed the fatty acids composition and their profile qualitatively quantitatively of nine abundant macroalgal specimens collecting from Egyptian coasts. GC mass analysis identified 23 types, including 13 saturated (SFA) 10 monounsaturated (MUSFA). SFA dominated with 78%, while MUFAs had 22%, UFAs were negligible at 0.01%. MUSFA oleic acid (omega-9) was present in all species except green macroalgae Galaxura rugosa Ulva fasciata, replaced by linoleic (omega-6). Oleic methyl ester registered studied species, red Hypnea cornuta & Jania rubens, brown Hormophysa cuneiformis. Chlorophyta 35% composition, followed Rhodophyta (33%) Phaeophyta (32%). Major SFAs palmitic glycidyl ester, comprising over half total acids. Red richer esters, more ester. Linoleic acid, nonadecylic elaidic methyl, behenic pentacosylic trans-palmitoleic exclusively Chlorophyta. Lacceroic distinguished Rhodophyta, whereas pelargonic just appeared alga Turbinaria turbinata. The maximum values recorded macroalga Caulerpa racemosa reed cornuta.was minimum one. research sheds light on its potential implications for human health nutrition.