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Title:KARAKTERIZACIJA ANTOCIANINSKIH PROFILOV SADNIH SOKOV RDEČEGA SADJA
Authors:ID Selimović, Sanela (Author)
ID Kolar, Mitja (Mentor) More about this mentor... New window
ID Brodnjak-Vončina, Darinka (Comentor)
ID Košir, Iztok Jože (Comentor)
Files:.pdf UNI_Selimovic_Sanela_2010.pdf (2,30 MB)
MD5: ACE0C097D184FBE04AE0C39C7D4E1534
PID: 20.500.12556/dkum/877f76a0-3308-4388-aa09-415073bbdde7
 
Language:Slovenian
Work type:Undergraduate thesis
Organization:FKKT - Faculty of Chemistry and Chemical Engineering
Abstract:Namen diplomskega dela je bil validirati analizno metodo za kvalitativno in kvantitativno določanje antocianinov v rdečem sadju in sadnih sokovih iz rdečega sadja. S tem smo želeli izboljšati metodologijo kontrole kvalitete naravnih produktov, ki vsebujejo naravna barvila (EEC E163). Z visokotlačno tekočinsko kromatografijo (HPLC) smo analizirali metanolne ekstrakte rdečega sadja v 6 vzorcih slovenskega porekla in sadnih sokov iz rdečega sadja, v 16 vzorcih slovenskega porekla in za primerjavo še 3 vzorce iz tujine (Avstrija in Italija). Za potrebe razvrščanja je bila prvotno potrebna predhodna identifikacija značilnih antocianinov za posamezno vrsto rdečega sadja s pomočjo standardnih raztopin dostopnih antocianinov. Opravili smo validacijo analizne metode, določili linearnost, natančnost, točnost, mejo določanja in časovno stabilnost metanolnega ekstrakta. Na osnovi vseh rezultatov smo ugotovili, da gre v Sloveniji za kvalitetne izdelke rdečega sadja in sadnih sokov iz rdečega sadja, saj se nikjer med analiziranimi vzorci ne pojavljajo signifikantne razlike.
Keywords:aditivi, barvila, antocianini, ekstrakcija, validacija, tekočinska kromatografija
Place of publishing:Maribor
Publisher:[S. Selimović]
Year of publishing:2010
PID:20.500.12556/DKUM-16721 New window
UDC:547.914:543.544(043.2)
COBISS.SI-ID:14905622 New window
NUK URN:URN:SI:UM:DK:KLQIJ0AJ
Publication date in DKUM:19.11.2010
Views:3255
Downloads:291
Metadata:XML DC-XML DC-RDF
Categories:KTFMB - FKKT
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Secondary language

Language:English
Title:CHARACTERIZATION OF ANTHOCYANINS PROFILES IN RED FRUITS AND RED FRUITS JUICES
Abstract:The purpose of this thesis was to validate the analytical method for qualitative and quantitative determination of anthocyanins in red fruits and red fruits juices in order to improve the quality control methodology of natural products containing natural colourants (EEC E163). High performance liquid chromatography was used for determination of anthocyanins in methanol extracts of red fruits in 6 samples of Slovenian origin and red fruits juices in 16 samples of Slovenian origin. For comparison, we have determined the anthocyanins content in 3 other samples originating from Austria and Italy. The approach was based on previous identification of typical anthocyanins profiles of each - red fruits using standard solution of available anthocyanins. The analytical method has been validated and the linearity, precision, accuracy, limit of quantification and stability of methanol extracts were determined. Based on all final results we have concluded that the quality of Slovenian products of red fruits is satisfactory, because there were no significant differences between the analysed samples.
Keywords:additives, colourants, anthocyanins, extraction, validation, liquid chromatography


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