Thraustochytrids and Algae as Sustainable Sources of Long-Chain Omega-3 Fatty Acids for Aquafeeds

Sustainability, Journal Year: 2024, Volume and Issue: 16(21), P. 9142 - 9142

Published: Oct. 22, 2024

There is limited ability to biosynthesize long-chain omega-3 fatty acids such as EPA and DHA in food webs leading humans. Seafood the key source of ω3 LC-PUFA, with aquaculture expected meet rising global demand; however, marine fish have a high dietary requirement for themselves. This was traditionally met using unsustainable oil meal, but supply environmental concerns dictated research on replacements. Among industrial sources DHA, microalgae especially thraustochytrids stand out resources concentrations. Although unicellular, are not they photosynthetic instead microheterotrophs. removes light facilitates yields monoculture production single-cell oils. The availability, concentrations, usually one or other essential acid permits calibration dose, which useful their effects mainly been considered together medical research. different cell function precursors bioactive compounds. Using thraustochytrids, microalgae, heterotrophic dinoflagellates, importance has investigated. optimizing growth early life stages scallops finfish preferentially incorporated into membrane phospholipids. microheterotrophs can contribute treatment wastewater waste gas, further enhancing sustainability reducing costs aquaculture.

Language: Английский

Anti-Inflammatory, Antithrombotic, and Antioxidant Properties of Amphiphilic Lipid Bioactives from Shrimp

Pharmaceuticals, Journal Year: 2024, Volume and Issue: 18(1), P. 25 - 25

Published: Dec. 28, 2024

Background/Objectives: Marine organisms, including shrimps, have gained research interest due to containing an abundance of bioactive lipid molecules.This study evaluated the composition and in vitro biological activities amphiphilic compounds from four different wild shrimp species: Litopenaeus vannamei, Penaeus kerathurus, Aristaeomorpha foliacea, Parapenaeus longirostris. Methods: Total (TL) extracts were obtained separated into total (TAC) lipophilic (TLC) compounds. Phenolic (TPC) carotenoid (TCC) contents, antioxidant (DPPH, ABTS, FRAP assays), effects on platelet-activating factor (PAF) ADP-induced platelet activation evaluated. Structural analyses performed using ATR-FTIR spectroscopy, while LC-MS was used elucidate fatty acid overall structure polar lipids (PLs) present TAC extracts. Results: extracts, rich phenolics, carotenoids, PL, unsaturated acids (UFAs), exhibited stronger anti-inflammatory antithrombotic compared with TLC which showed potent capacity. Significant amounts UFAs, such as monounsaturated (MUFA) oleic (C18:1n9) omega-3 (n3) polyunsaturated (PUFAs) like eicosapentaenoic (EPA; C20:5n3) docosahexaenoic (DHA; C22:6n3), detected PLs favorable values for their n6/n3 PUFA ratio. Shrimp bioactives provide against PAF pathway ADP eicosanoid pathways. Conclusions: The findings support further use anti-inflammatory, anti-thrombotic, ingredients produce new bio-functional health-promoting products, context sustainable development circular economy.

Language: Английский