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eng Geochemical Investigation of Tar Balls Collected on a Beach on Žirje Island (Croatia) Using Petroleum Biomarkers
hrv Geokemijsko ispitivanje katranskih kuglica s plaže na otoku Žirju (Hrvatska) upotrebom naftnih biomarkera
Marinović, Slavica; Fajković, Hana; Cuculić, Vlado
Kemija u industriji Vol. 70, No. 5-6, 2021
Tar balls are frequently reported as indicators of the extent of marine pollution owing to spill incidents of crude oil or petroleum products. Representative tar ball samples collected on a beach on Žirje Island, Croatia, were geochemically characterised by gas chromatography coupled to mass spectrometry (GC/MS) in order to identify correlations between them and investigate potential sources. The chemical analysis of petroleum biomarkers, hopanes, and steranes, detected by gas chromatography/mass spectrometry (GC/MS) generates information of gr...
Hrčak ID: 257558


hrv Doprinos istraživanju slobodnih i glikozidno vezanih isparljivih spojeva od 2001. do 2006.
eng Contribution to the Research of Free and Glycosidically Bound Volatiles from 2001 to 2006
Jerković, I.
Kemija u industriji Vol. 56, No. 4, 2007
U radu je prikazan doprinos istraživanju slobodnih i glikozidno vezanih isparljivih spojeva u razdoblju 2001. - 2006. koji je ostvaren radom u Zavodu za organsku kemiju Kemijsko-tehnološkog fakulteta, Sveučilište u Splitu. Identificirane su mnoge terpenske strukture, fenilpropanski derivati, kao i alifatski ugljikovodici, alkoholi, karbonili, masne kiseline i dr. Aglikoni oslobođeni enzimskom hidrolizom glikozida isparljivih spojeva bili su alifatski, fenilpropanski derivati, monoterpeni, seskviterpeni i dr. Nadalje, sintetizirani su glukozidi...
Hrčak ID: 13107


hrv Kemijska karakterizacija biološkog ulja dobivenoga pirolizom zdravoga i natrulog drva bukve (Fagus orientalis)
eng Chemical Characterization of Bio-oil from Pyrolysis of Undecayed and Decayed Fagus orientalis Wood
Hosseinihashemi, Seyyed Khalil; Hassani, Saeed; Latibari, Ahmad Jahan; Ozbay, Gunay
Drvna industrija Vol. 68, No. 2, 2017
Među šumskim štetnicima gljive su najopasniji činitelji koji uzrokuju nepovratne gubitke drva rastućih stabala i trupaca. U ovom je istraživanju provedena piroliza uzoraka od zdravoga i natrulog drva bukve (Fagus orientalis) u atmosferi dušika, uz pomoć fiksnog reaktora i pri temperaturi pirolize 500 °C. Istraživan je utjecaj gljiva truležnica (Trametes versicolor) na prinose i kemijski sastav produkata pirolize tretiranog drva. Prinos biološkog ulja od natrulog drva pri temperaturi pirolize 500 °C bio je 62,5 % (težinskog udjela), dok je prino...
Hrčak ID: 183637


eng Preventive Activity of Giner (<i>Zingiber officinale</i>) Against Myelotoxicity and Hepatotoxicity Induced by Cyclohexatriene and Identification of the Most Active Compounds by GC-MS
hrv Preventivna aktivnost đumbira (<i>Zingiber officinale</i>) u suzbijanju mijelotoksičnosti i hepatotoksičnosti izazvane cikloheksatrienom i identifikacija najaktivnijih spojeva metodom GC-MS
Otmanine, Khaled; Hanini, Salah; Benkortbi, Othmane; Bekri, Razika; Amroun, Karim; Djellal, Merouane; Kohli, Sara; Oumouna-Benachour, Karine
Kemija u industriji Vol. 70, No. 7-8, 2021
This study aimed to uncover the preventive capability of <i>Zingiber officinale</i> against myelotoxicity, leukaemia, and hepatotoxicity. For the most part, this work depended on the subcutaneous injection of cyclohexatriene in rabbits to cause the illness by a synthetic strategy. In parallel, another group of rabbits was exposed to the injection of cyclohexatriene under similar conditions with the feeding <i>Zingiber officinale</i>, where it was discovered that the cyclohexatriene-induced myelotoxicity was counteracted. The histological examin...
Hrčak ID: 259338


hrv Potencijal sastojaka esencijalnog ulja iz lišća biljke <i>Adenia cissampeloides</i> za primjenu u medicini i kao pesticida
eng Medicinal and Pesticidal Potentials of the Constituents of the Essential Oil from <i>Adenia cissampeloides</i> Leaves
Ogunlesi, Modupe; Okiei, Wesley; Ofor, Edith; Eniola, Anthony
Kemija u industriji Vol. 68, No. 1-2, 2019
<i>Adenia cissampeloides</i> (Panch. ex. Hook.) Harms je biljka koja se u alternativnoj medicini primarno upotrebljava za ublažavanje hipertenzije i nekoliko drugih bolesti. Provedena je izolacija i GC-MS analiza pet esencijalnih ulja frakcijski izdvojenih za vrijeme hidrodestilacije osušenog lišća koja je trajala preko četiri sata. Ulja su sadržavala fitol, α-linolensku kiselinu, <i>n</i>-heksadekanoičnu kiselinu, heksahidrofarnezil aceton, (13<i>S</i>)-8,13-epoksi-labd-14-en, kaur-16-en, gvajol, α-gurjunen i α-elemen. Provedena je rasprava i...
Hrčak ID: 216021


hrv Kemijska i senzorna karakterizacija vina ´Chardonnay´
eng Chemical and sensory characterization of Chardonnay wines
Jagatić Korenika, Ana-Marija; Puhelek, Ivana; Tomaz, Ivana; Jeromel, Ana
Glasnik Zaštite Bilja Vol. 42, No. 3, 2019
Tijekom berbe 2017. proizvedena su četiri vina ´Chardonnay´ uz upotrebu različitih komercijalno dostupnihsojeva Saccharomyces cerevisiae i bayanus kvasaca te je uspoređen njihov aromatski profil. Primjenom ekstrakcije na čvrstoj fazi te vezanim sustavom plinska kromatografija- spektrometar masa, u vinima je identificirano oko 70 hlapljivih spojeva. Analizirani spojevi, podijeljeni u 7 kemijskih grupa, značajno su utjecali na senzorni profil vina i njihovu različitost. Rezultati su pokazali značajan i pozitivan utjecaj korištenih sojeva kvasaca...
Hrčak ID: 220536


eng GC-MS Characterization of Acetylated &beta;-D-glucopyranosides: Transglucosylation of Volatile Alcohols Using Almond &beta;-glucosidase
Jerković, Igor; Mastelić, Josip
Croatica Chemica Acta Vol. 77, No. 3, 2004
&beta;-D-Glucopyranosides of pentan-1-ol, (&plusmn;)-pentan-2-ol, hexan-1-ol, octan-1-ol, benzyl alcohol, 2-phenylethanol, (&plusmn;)-2-phenyl-propan-1-ol, 3-phenyl-propan-1-ol, geraniol and nerol were synthesized by transglucosylation of the respective alcohols with cellobiose using almond &beta;-glucosidase. The reaction was carried out in acetonitrile with acetate buffer (vol. ratio 9:1), with the yields 14.4–45.0 %. Transglucosylation was not enantioselective. The products were characterized by GC-MS analysis of prepared tetraacetyl glucosi...
Hrčak ID: 102954


eng Determination of carbohydrates in the herbal antidiabetic mixtures by GC-MC
SAVYCH, ALONA; MARCHYSHYN, SVITLANA; MILIAN, IVANNA
Acta Pharmaceutica Vol. 71, No. 3, 2021
Due to the wide range of biologically active substances, the herbal mixtures can influence the development of diabetes mellitus and its complications. Carbohydrates attract particular attention due to their hypoglycemic, hypolipidemic, anticholesterolemic, antioxidant, anti-inflammatory and detoxifying activities. The aim of this study was to investigate the content of carbohydrates through their monomeric composition in the herbal mixture samples: a) Urtica dioica leaf, Cichorium intybus roots, Rosa majalis fruits, Elymys repens rhizome, Tarax...
Hrčak ID: 242998


eng Volatile Components from Old Plum Brandies
Tešević, Vele; Nikićević, Ninoslav; Jovanović, Anka; Djoković, Dejan; Vujisić, Ljubodrag; Vučković, Ivan; Bonić, Mirjana
Food Technology and Biotechnology Vol. 43, No. 4, 2005
Gas chromatography and GC/MS methods were used to detect volatile components of three home-made natural old plum brandy samples and one sample of industrially-produced plum brandy. Gas chromatography and gas chromatography-mass spectrometric analysis of this extracts led to the identification of 99 components, including 46 esters, 7 hydrocarbons (alkanes and alkenes), 3 aldehydes, 9 alcohols, 1 lactone, 1 ketone, 8 acetals, 14 terpenes, 8 acids and 2 phenols. Ethyl esters of C8–C18 acids were the most abundant in all samples. In addition, the c...
Hrčak ID: 110576


hrv Utjecaj tehnike ekstrakcije na sastav hlapljivih sastojaka oleoresina iz drva Pinus brutia Ten.
eng Effect of Extraction Technique on Composition of Volatile Constituents of Oleoresin from Pinus Brutia Ten.
Yasar, Samim; Beram, Abdullah; Guler, Gurcan
Drvna industrija Vol. 69, No. 3, 2018
Za ovu su studiju hlapljivi sastojci oleoresina iz drva Pinus brutia Ten. izdvojeni mikroekstrakcijom čvrste faze (SPME) i hidrodestilacijom. Radi određivanja hlapljivih sastojaka terpentinskog ulja (dobivenoga hidrodestilacijom) i ekstrakta oleoresina (dobivenoga SPME-om), provedena je plinska kromatografija i masena spektrometrija (GC/MS). Jedanaest hlapljivih spojeva sadržavalo je terpentinsko ulje dobiveno hidrodestilacijom, dok je ekstrakt dobiven SPME-om sadržavao 32 hlapljiva spoja. Tri karakteristična hlapljiva sastojka u terpentinskom...
Hrčak ID: 206354