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Nutritional, chemical and biological characterisation of seaweeds Halimeda tuna, Codium bursa, Cystoseira barbata and seagrass Cymodocea nodosa from the Adriatic Sea

dc.contributor.advisorStanković, Ivan
dc.contributor.otherKundaković-Vasović, Tatjana
dc.contributor.otherStanojković, Tatjana
dc.contributor.otherPetović, Slavica
dc.creatorMilović, Sanja
dc.date.accessioned2020-11-05T08:59:05Z
dc.date.available2020-11-05T08:59:05Z
dc.date.issued2020
dc.identifier.urihttp://eteze.bg.ac.rs/application/showtheses?thesesId=7652
dc.identifier.urihttps://fedorabg.bg.ac.rs/fedora/get/o:22807/bdef:Content/download
dc.identifier.urihttp://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=23145225
dc.identifier.urihttps://nardus.mpn.gov.rs/handle/123456789/17520
dc.identifier.urihttps://farfar.pharmacy.bg.ac.rs/handle/123456789/3722
dc.description.abstractPredmet istraživanja ove doktorske disertacije su tri morske alge: Halimeda tuna (J.Ellis & Solander) J.V. Lamouroux (Halimedaceae), Codium bursa (Olivi) C. Agardh(Codiaceae), Cystoseira barbata (Stackhouse) C. Agardh (Sargassaceae) i morskatrava Cymodocea nodosa (Urcia) Ascherson (Cymodoceaceae) iz Jadranskog mora.Nutritivna vrednost odabranih uzoraka je ispitivana korišćenjem zvaničnih AOAC(Association of Official Analytical Chemists) metoda. Najveću energetsku vrednost, unavedenim ispitivanjima, imala je zelena alga C. bursa (490,4 kcal).Metodom hladne maceracije u trajanju od 48 sati, dobijena su tri polarna ekstrakta:dihlormetan : metanolni (1:1) (DME), 70% metanolni i vodeni ekstrakt. Suvi ekstrakti su daljekorišćeni za biološka in vitro ispitivanja kao što su: antioksidativna, antimikrobna, anti α-glukozidazna i citotoksična aktivnost. DME ekstrakt H. tuna je pokazao najbolju citotoksičnuaktivnost prema ćelijama humanog karcinoma kolona, LS174 (IC50=17,92 ± 1,54 μg/ml).DME ekstrakt C. nodosa je pokazao snažnu citotoksičnu aktivnost prema ćelijama humanogadenokarcinoma, HeLa (IC50=13,28 ± 0,39 μg/ml) i prema ćelijama humane hroničnemijelogene leukemije, K562 (IC50=19,64 ± 1,55 μg/ml). Najbolju anti α-glukozidaznuaktivnost (IC50=9,98 ± 3,34 μg/ml) i najbolju antibakterijsku aktivnost (MIC 100 μg/ml)prema Staphylococcus aureus i Bacillus subtilis je ispoljio DME ekstrakt C. barbata.Razvojom odgovarajuće HPLC metode, kao i primenom odgovarajućih metodadetekcije identifikovana su tri jedinjenja (diosmetin-7-sulfat, kaftarinska i kutarinska kiselina)u DME ekstraktu morske trave C. nodosa.Sadržaj β-glukana, masnih kiselina, sterola i mikro- i makroelemenata je ispitivan usvim navedenim uzorcima. Najveći sadržaj β-glukana bio je u morskoj travi C. nodosa (13,04± 0,42 g/100 g). C. nodosa, morska trava, pokazala je najviši sadržaj polinezasićenih masnihkiselina (PUFA, 7,157 mg/g). Značajan sadržaj sterola (fukosterol, 21,76 ± 0,1 μg/g) i najboljiodnos polinezasićenih i zasićenih (SFA) masnih kiselina, PUFA/SFA (0,08) pokazan je kodmrke alge C. barbata. Zelene alge, C. bursa i H. tuna, imale su najveći saržaj sterola (β-sitosterol, 95,21 ± 0,16 μg/g i 73,90 ± 0,08 μg/g, respektivno). Najviši sadržaj kalcijuma (Ca),u količini od 55125 μg/g, detektovan je kod alge H. tuna.sr
dc.description.abstractThe research subject of doctoral dissertation were three seaweeds: Halimeda tuna (J.Ellis & Solander) J.V. Lamouroux (Halimedaceae), Codium bursa (Olivi) C. Agardh(Codiaceae), Cystoseira barbata (Stackhouse) C. Agardh (Sargassaceae) and the oneseagrass Cymodocea nodosa (Urcia) Acherson (Cymodoceaceae) from the Adriatic Sea.Nutritional value of selected samples were investigated by official AOAC(Association of Official Analytical Chemists) methods. The highest energy value had thegreen seaweed C. bursa (490,4 kcal).Using the cold maceration extraction, lasting 48 h, the three polar extracts wereobtained: dichlormetan: methanol (1:1) (DME), 70 % methanol and aquous extracts. The dryextracts were further used for biological in vitro investigations, such as: antioxidative,antimicrobial, anti α-glucosidase and cytotoxic activity.DME extract of H. tuna has shown the best cytotoxic activity against human coloncarcinoma cell line, LS174 (IC50=17,92 ± 1,54 μg/ml). DME extract of C. nodosa had strongcytotoxicity against human adenocarcinoma cell line, HeLa (IC50=13,28 ± 0,39 μg/ml) andhuman chronic myelogenous leukaemia cell line, K562 (IC50=19,64 ± 1,55 μg/ml). The bestanti α-glucosidase (IC50=9,98 ± 3,34 μg/ml) and best antibacterial activity (minimal inhibitoryconcentration of 100 μg/ml) for Staphylococcus aureus and Bacillus subtilis wasdemonstrated in DME extract of seagrass C. nodosa.Developing the appropriate HPLC method, accompained with the appropriatedetection methods, the three compounds were identified (diosmetin-7-sulfate, caftaric andcoutaric acid) in the DME extract of seagrass C. nodosa.The content of β-glucan, fatty acids, sterols and micro- and macroelements wereinvestigated in all samples. The highest content of β-glucan was detected in C. nodosaseagrass (13,04 ± 0,42 g/100 g). C. nodosa had also the highest level of polyunsaturated fattyacids (PUFAs) (7,157 mg/g). Significant sterol content (fucosterol, 21,76 ± 0,1 μg/g) and thebest ratio of polyunsaturated and saturated (SFA) fatty acids, PUFA/SFA (0,08) was shown inC. barbata, brown seaweed. Green algae, C. bursa and H. tuna, showed the highest level ofsterols (β-sitosterol, 95,21 ± 0,16 μg/g and 73,90 ± 0,08 μg/g, respectively). H. tuna had thehighest content of calcium (Ca) in amount of 55125 μg/g.en
dc.formatapplication/pdf
dc.languagesr
dc.publisherУниверзитет у Београду, Фармацеутски факултетsr
dc.rightsopenAccess
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/4.0/
dc.sourceУниверзитет у Београдуsr
dc.subjectHalimeda tunasr
dc.subjectHalimeda tunaen
dc.subjectCodium bursaen
dc.subjectCystoseira barbataen
dc.subjectCymodocea nodosaen
dc.subjectseaweedsen
dc.subjectseagrassen
dc.subjectCodium bursasr
dc.subjectCystoseira barbatasr
dc.subjectCymodocea nodosasr
dc.subjectalgesr
dc.subjectmorska travasr
dc.titleNutritivna, hemijska i biološka karakterizacija morskih algi Halimeda tuna, Codium bursa, Cystoseira barbata i morske trave Cymodocea nodosa iz Jadranskog morasr
dc.title.alternativeNutritional, chemical and biological characterisation of seaweeds Halimeda tuna, Codium bursa, Cystoseira barbata and seagrass Cymodocea nodosa from the Adriatic Seaen
dc.typedoctoralThesisen
dc.rights.licenseBY-NC-ND
dcterms.abstractСтанковић, Иван; Станојковић, Татјана; Кундаковић-Васовић, Татјана; Петовић, Славица; Миловић, Сања;
dc.identifier.fulltexthttps://farfar.pharmacy.bg.ac.rs/bitstream/id/8390/IzvestajKomisije23321.pdf
dc.identifier.fulltexthttps://farfar.pharmacy.bg.ac.rs/bitstream/id/8389/Disertacija.pdf
dc.identifier.rcubhttps://hdl.handle.net/21.15107/rcub_nardus_17520
dc.type.versionpublishedVersion


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