Targeted delivery of seaweed bioactives: liposomal encapsulation of Ulva lactuca and Codium fragile for antibacterial enhancement

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dc.authorid0000-0003-0293-6964
dc.authorid0000-0002-1786-1216
dc.authorid0000-0003-3270-5008
dc.contributor.authorAk, Esra
dc.contributor.authorGuven, Pelin
dc.contributor.authorTuney, Inci
dc.contributor.authorCagal, Munevver Muge
dc.date.accessioned2026-02-08T15:15:02Z
dc.date.available2026-02-08T15:15:02Z
dc.date.issued2025
dc.departmentBursa Teknik Üniversitesi
dc.description.abstractSeaweeds are promising natural sources of antimicrobials and antioxidants; however, their direct use is often limited by the lack of effective targeted delivery systems. The main objective of this study was to investigate the effects of liposomal encapsulation on enhancing the antimicrobial action of seaweed bioactives. A liposomal formulation was developed to encapsulate extracts from the green seaweeds Ulva lactuca and Codium fragile subsp. fragile, sourced from the Aegean Sea and the Marmara Sea. Physicochemical characterizations of liposomal formulations (size, charge, polydispersity index) were evaluated by dynamic light scattering technique. The encapsulation efficiency (EE%) of liposomal U. lactuca Marmara (Lipo-ULM), liposomal U. lactuca Aegean (Lipo-ULA), liposomal C. fragile subsp. fragile Marmara (Lipo-CM), liposomal C. fragile subsp. fragile Aegean (Lipo-CA) were calculated as 61.63, 70.73, 67.56, and 76.92, respectively. FTIR analysis has confirmed the encapsulation. Antibacterial activities of the free extracts and the liposomal formulations were evaluated against Escherichia coli ATCC 25922 and Staphylococcus aureus ATCC 25923 using minimum inhibitory concentration (MIC) assays. Lipo-ULM and Lipo-ULA displayed MIC values of 1.25 mu g/mu L against both bacterial strains, compared to 2.5 mu g/mu L for their free extracts. Lipo-CM and Lipo-CA showed even more activity, with MIC values of 0.0025 mu g/mu L, while the free extracts of CM and CA presented 0.0050 mu g/mu L. Furthermore, free and liposomal encapsulated extracts revealed similar DPPH radical scavenging capacity. This study presents a novel liposomal encapsulation system that holds promise for enhancing the effectiveness of edible seaweed extracts as antibacterial agents for application in the pharmaceutical and food industries.
dc.description.sponsorshipScientific Research Projects Units of XXXXXXX [220Y003]
dc.description.sponsorshipThis work was supported by the Scientific Research Projects Units of XXXXXXX (No: 220Y003).
dc.identifier.doi10.1007/s13205-025-04374-7
dc.identifier.issn2190-572X
dc.identifier.issn2190-5738
dc.identifier.issue7
dc.identifier.pmid40546397
dc.identifier.scopus2-s2.0-105008686340
dc.identifier.scopusqualityQ1
dc.identifier.urihttps://doi.org/10.1007/s13205-025-04374-7
dc.identifier.urihttps://hdl.handle.net/20.500.12885/5573
dc.identifier.volume15
dc.identifier.wosWOS:001512171800001
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.indekslendigikaynakPubMed
dc.language.isoen
dc.publisherSpringer Heidelberg
dc.relation.ispartof3 Biotech
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzWOS_KA_20260207
dc.subjectLiposomal formulation
dc.subjectUlva lactuca
dc.subjectCodium fragile
dc.subjectAntibacterial
dc.subjectBioavailability
dc.subjectSeaweeds
dc.titleTargeted delivery of seaweed bioactives: liposomal encapsulation of Ulva lactuca and Codium fragile for antibacterial enhancement
dc.typeArticle

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