o:6219 Volatile organic compounds and fatty acid content of green macroalgae Ulva lactuca en Since macroalgae represent a valuable source of various bioactive compounds it is important to investigate their chemical profiles that will lead to the better understanding of marine algal biodiversity in the Adriatic Sea, in this case Ulva lactuca. Total of 28 compounds were extracted by HS-SPME and identified by GC-MS with relatively different compounds abundance among the fibers. Unsaturated alkane heptadec-8-ene ranged in the headspace from 21.80% to 12.46%. Other abundant compounds were lower aldehydes heptanal and nonanal, followed by minor percentages of pentanal, hexanal, octanal and decanal. Benzyl alcohol and benzaldehyde were the main benzene derivatives in the headspace. Total lipids were extracted using the Folch method and analysed using GC-FID. Twelve (12) fatty acids were identified. The content of palmitic, oleic acid isomers and arachidic acid consist more than 70% of total identified fatty acids (45.16%, 13.59% and 14.57%, respectively). 1552101 2718-6040 (online) 2024-11-27T11:26:12.376Z 44 no 46 Stela Jokić Josip Juraj Strossmayer University of Osijek, Faculty of Food Technology Osijek 46 Igor Jerković University of Split, Faculty of Chemistry and Technology, Split 46 Ivana Flanjak Josip Juraj Strossmayer University of Osijek, Faculty of Food Technology Osijek 46 Krunoslav Aladić Josip Juraj Strossmayer University of Osijek, Faculty of Food Technology Osijek 46 Drago Šubarić Josip Juraj Strossmayer University of Osijek, Faculty of Food Technology Osijek 46 Zorana Mutavski Institute for Medicinal Plant Research, ''Dr. Josif Pančić'' Belgrade 0000-0002-6998-0292 46 Rozelindra Čoz-Rakovac Ruđer Bošković Institute Zagreb application/pdf 3308308 https://unilib.phaidrabg.rs/o:6219 no yes 1 70 92000004 71A10 BOOK OF ABSTRACTS 31 31 20th Ružička Days "Today Science – Tomorrow industry" 2024