Faculty of Pharmacy, Lj. (FFALJ)
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Razvoj in validacija metode tekočinske kromatografije za kvantifikacijo kurkuminoidov v različnih topilih = Development and validation of a liquid chromatography method for quantifying curcuminoids in various solvents cells : magistrska nalogaRibo, AldinaKurkuminoidi so naravni lipofilni polifenoli, ki se pridobivajo iz korenike kurkume (Curcuma longa). V skupino kurkuminoidov spadajo demetoksikurkumin (DMC), bisdemetoksikurkumin (BDMC) in kurkumin ... (CUR). Slednji je najbolj raziskan in se veliko uporablja v prehranskih dopolnilih, kozmetiki ter kulinariki. Zaradi svojih antioksidativnih, protivnetnih, protibakterijskih in protirakavih lastnosti uporaba kurkumina v terapevtske namene vedno bolj narašča. Njegove koristne učinke omejujeta slaba topnost in slaba biološka uporabnost, zato poskušajo raziskovalci razviti načine za izboljšanje teh lastnosti. Za raziskovanje topnosti potrebujemo metodo, ki bo primerna za analizo kurkuminoidov v različnih farmacevtskih topilih, ki se uporabljajo v farmacevtskih oblikah kot pomožne snovi, kot tudi v različnih laboratorijskih topilih, ki se lahko uporabljajo za ekstrakcije in izolacije kurkuminoidov iz rastlinskih drog in farmacevtskih izdelkov. Naš namen v tej nalogi je bil razvoj in validacija metode HPLC za ugotavljanje vsebnosti kurkuminoidov v različnih vzorcih in analizo topnosti kurkumina (pri 22 °C) v diklorometanu, DMSO, etanolu, glicerolu, olju MCT in PEG 400 s stresanjem (»shake-flask« metoda). Razvili smo metodo, s katero lahko kvantificiramo posamezne kurkuminoide v različnih farmacevtskih topilih. Metodo smo razvili na reverznofazni koloni Phenomenex Kinetex C18 z izokratsko elucijo in kurkuminoide določali pri valovni dolžini 424 nm. Metoda traja 18 minut z gradientom mobilne faze B. Kurkuminoidi so se eluirali pri retencijskih časih: 6,31 min (BDMC), 7,24 min (DMC) in 8,30 min (CUR). Metodo smo validirali po smernicah ICH. Preverili smo linearnost metode, točnost, ponovljivost, selektivnost in mejo določljivosti. Pri ugotavljanju ustreznosti izdelkov iz kurkume na trgu smo ugotovili, da vsi izdelki ne ustrezajo specifikacijam njihovih proizvajalcev. Pri ugotavljanju primernosti metode za določanje topnosti kurkumina smo ugotovili, da je kurkumin najbolj topen v DMSO, sledi PEG 400, olje MCT, diklorometan in etanol. V nalogi smo dokazali, da HPLC metoda daje zanesljive in točne rezultate pri kvantifikaciji kurkuminoidov in da je primerna za ugotavljanje topnosti v različnih topilih.Type of material - master's thesis ; adult, seriousPublication and manufacture - Ljubljana : [A. Ribo], 2023Language - slovenianCOBISS.SI-ID - 171813123
Author
Ribo, Aldina
Other authors
Tavčar, Eva
Topics
Tekočinska kromatografija |
Zdravilne rastline |
kurkumin |
kurkuminoidi |
HPLC |
validacija
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Knjižnica emšf 0000000543 RIBO ALDINA Razvoj 0000001335 IN: 0017879 Knjižnica emšf 543 RIBO ALDINA Razvoj 1335 IN: 0017879 |
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Database name | Field | Year |
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Ribo, Aldina | ![]() |
Tavčar, Eva | 33335 |
Source: Personal bibliographies
and: SICRIS
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