Seasonal and culture period variations in the lipid and fatty acid content of Ulva lactuca cultivated in Mikhmoret onshore (Israel)

• DOI: 10.1515/bot-2023-0027
• Publication Date: 2024-01-04T13:52:51Z
• Authors: Nabeel Gnayem; Razan Unis; Rima Gnaim; Alexander Chemodanov; Álvaro Israel; Jallal Gnaim; Alexander Golberg
• Keywords: Ulva lactuca; Docosapentaenoic acid

Abstract The use of high-value fatty acids (FA), omega-3 ( n -3), and omega-6 -6) from seaweed could relieve the pressure natural wild fish sources reduce overfishing worldwide. This research is designed to explore how harvest season (winter, spring, summer) culture period influence biomass production yield, lipid content, FA composition in green Ulva sp. studied was grown plastic sleeves with flowthrough seawater Mikhmoret (East Mediterranean, Israel) July 2019 December 2020. species identified as lactuca Linnaeus by DNA barcoding using rbc L, ITS, tuf A markers. No detectable genetic variability U. samples found throughout period. quantitative examination content different seasons revealed that maximum lipids summer, polyunsaturated (PUFAs) winter. PUFA profile included eicosapentaenoic acid, docosapentaenoic docosahexaenoic -3, -6, where -6/ -3 ratio comparable desired range for a balanced nutritional diet.