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Efikasnost ekstrakata iz hrastovog žira na usporavanje oksidacije lipida

dc.creatorRakić, Sveto
dc.date.accessioned2020-12-17T17:42:34Z
dc.date.available2020-12-17T17:42:34Z
dc.date.issued2000
dc.identifier.issn1450-8109
dc.identifier.urihttp://aspace.agrif.bg.ac.rs/handle/123456789/210
dc.description.abstractThis work investigates different extraction techniques by utilizing 95% ethanol and refined sunflower oil as well as the effects of thermal pretreatments on the extraction of antioxidants from oak acorns. Experiments were conducted using oak acorn from Quercus cerris and Quercus robur. Peroxide values measurements and TBA test were used for oxidation rate monitoring. Two types of extracts were prepared: Using dried acorns Using heat-treated acorns - 15 min 210°C. The results indicate that both oil and ethanol extracts have antioxidative properties. Heat treatment did not have adverse effect on antioxidative properties of oak acorn extract.en
dc.description.abstractU radu se daje prikaz različitih tehnika pripreme ekstrakata, koristeći različite rastvarače i predtretman biljnog materijala (u smislu temperature i vremena tretmana jezgra hrastovog žira kao polaznog materijala). Ispitivanja su vršena na uzorcima hrastovog žira Quercus cerris i Quercus robur. Korišćeni rastvarači su 96,5% etanol i jestivo rafinisano suncokretovo ulje. Tok oksidacije praćen je određivanjem peroksidnog broja i ekstincije TBA testom. Pripremani su ekstrakti na bazi osušenog jezgra žira kao i termički tretiran biljni materijal na temperaturi od 210°C tokom 15 minuta. Dobijeni rezultati ukazuju da i uljni i etanolni ekstrakti ispoljavaju antioksidativno dejstvo pod datim uslovima ogleda i da termički tretman jezgra ne dovodi do razgradnje antioksidacione supstance.sr
dc.publisherUniverzitet u Beogradu - Poljoprivredni fakultet, Beograd
dc.rightsopenAccess
dc.rights.urihttps://creativecommons.org/licenses/by-sa/4.0/
dc.sourceJournal of Agricultural Sciences (Belgrade)
dc.subjectacornen
dc.subjectantioxidative activityen
dc.subjectextracten
dc.subjectoilen
dc.titleEffect of oak acorn extracts on lipide oxidation kineticsen
dc.titleEfikasnost ekstrakata iz hrastovog žira na usporavanje oksidacije lipidasr
dc.typearticle
dc.rights.licenseBY-SA
dc.citation.epage143
dc.citation.issue2
dc.citation.other45(2): 139-143
dc.citation.spage139
dc.citation.volume45
dc.identifier.fulltexthttp://aspace.agrif.bg.ac.rs/bitstream/id/928/207.pdf
dc.identifier.rcubhttps://hdl.handle.net/21.15107/rcub_agrospace_210
dc.identifier.rcubconv_1640
dc.type.versionpublishedVersion


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