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Uticaj rastvarača na apsorpcione spektre prehrambenih azo boja

dc.creatorRadivojević, Jelena
dc.creatorIvanović, Evica
dc.creatorPopović-Đorđević, Jelena
dc.creatorTrišović, Nemanja
dc.creatorBanjac, Nebojša
dc.date.accessioned2021-03-10T14:09:09Z
dc.date.available2021-03-10T14:09:09Z
dc.date.issued2019
dc.identifier.issn0351-9465
dc.identifier.urihttp://TechnoRep.tmf.bg.ac.rs/handle/123456789/4286
dc.description.abstractThe solvent influence on absorption spectra of food azo dyes was examined by the method of Linear Solvation Energy Relationships (LSER). For this purpose, six azo dyes were used: tartrazine (E 102), ponceau 4R (E 124), azorubin (E 122), brilliant black (E 151), amaranth (E 123) and gelb orange S (E 110). Absorption spectra of dissolved azo dye have been recorded in the wavelength range of visible radiation, or from 380 to 760 nm, in eight solvent of different polarity. The choice of the solvent was limited due to the high polarity of the azo dye molecules themselves. The effect of solvent dipolarity/polarizability and solvent/solute hydrogen bonding interaction are analysed by means of the linear solvation energy relationship (LSER) concept proposed by Kamlet and Taft. The linear correlation of the absorption maxima with parameters of Kamlet-Taft solvatochrome equation yielded satisfactory results.en
dc.description.abstractUticaj polarnosti rastvarača na apsorpcione spektre prehrambenih azo boja ispitivan je metodom linearne korelacije energije solvatacije (LSER). U ovu svrhu korišćeno je šest prehrambenih azo boja i to: tartrazin (E 102), ponceau 4R (E 124), azorubin (E 122), brilijant crna (E 151), amarant (E 123) i gelb oranž S (E 110). Apsorpcioni spektri rastvorenih azo boja određeni su u talasnom opsegu vidljivog zračenja, odnosno u opsegu od 380 do 760 nm, u osam rastvarača različite polarnosti. Polarnost samih boja je uticala na izbor malog broja polarnih rastvarača. Spektre ispitivanih azo boja karakteriše jedan apsorpcioni maksimum. Efekat polarnosti rastvarača i efakat vodoničnog vezivanja rastvarač-rastvorena supstanca ispitivan je primenom KamletTaftove solvatohromne jednačine. Linearna korelacija apsorbcionih maksimuma sa parametrima Kamlet-Taftove solvatohromne jednačine dala je zadovoljavajuće rezultate.sr
dc.publisherEngineering Society for Corrosion, Belgrade, Serbia
dc.relationinfo:eu-repo/grantAgreement/MESTD/Technological Development (TD or TR)/31006/RS//
dc.relationinfo:eu-repo/grantAgreement/MESTD/Integrated and Interdisciplinary Research (IIR or III)/46009/RS//
dc.rightsopenAccess
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/4.0/
dc.sourceZaštita materijala
dc.subjectSolvatochromismen
dc.subjectKamlet-Taften
dc.subjectAzo dyesen
dc.subjectLSERen
dc.subjectSolvatohromizamsr
dc.subjectKamlet-Taftsr
dc.subjectAzo bojesr
dc.subjectLSERsr
dc.titleSolvent influence on absorption spectra of food azo dyesen
dc.titleUticaj rastvarača na apsorpcione spektre prehrambenih azo bojasr
dc.typearticle
dc.rights.licenseBY-NC-ND
dc.citation.epage335
dc.citation.issue4
dc.citation.other60(4): 331-335
dc.citation.rankM51
dc.citation.spage331
dc.citation.volume60
dc.identifier.doi10.5937/zasmat1904331R
dc.identifier.fulltexthttp://TechnoRep.tmf.bg.ac.rs/bitstream/id/10036/0351-94651904331R.pdf
dc.type.versionpublishedVersion


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