Supercritical CO2 Extraction and GC-MS Characterization of Lipophilic Compounds from Ulva lactuca
摘要
Ulva lactuca, a green macro alga, has garnered significant attention for its nutritional and bioactive properties, particularly its possible uses in the culinary, medical, and sustainable energy sectors. This study explores the extraction and chemical composition of U. lactuca oil using supercritical fluid extraction (SFE), followed by GC-MS analysis. The oil yield was found to be 0.190%, obtained under standard operating conditions (250 bar, 45 °C, 27 g/min CO₂ flow rate, 2 h). GC-MS analysis revealed a complex profile of bioactive compounds, including unsaturated fatty acids such as 9-octadecenoic acid (Z) and linoleic acid ethyl ester, along with antioxidants like phytol and bioactive sterols such as estra-1,3,5(10)-trien-17α-ol. Additionally, hydrocarbons and aromatic compounds, such as dotriacontane, docosane, and α-asarone, were identified, contributing to the oil’s stability and possible wellness advantages. These findings suggest that U. lactuca oil possesses bioactive properties comparable to those of conventional vegetable oils, with implications for its potential role as a nutritional additive and an eco-friendly substitute for conventional oils. This study highlights the potential of U. lactuca oil in various industrial applications, including nutraceuticals, cosmetics, and pharmaceuticals, opening the way for deeper investigation into its beneficial health effects.