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Raziskave vpliva etanola na biosintezo in oksidacijo alfa-farnezena v jabolkih Granny Smith : diplomska naloga = Researching ethanol influence on biosynthesis and oxidation of alpha-farnesenein Granny Smith apples : graduation thesisZlatić, EmilUgotavljali smo spremembe vsebnosti trans, trans a-farnezena, konjugiranega trienola in spremembe aktivnosti superoksid dizmutaze, topne guaiakol peroksidaze ter koncentracije a-tokoferola in ... askorbinske kisline v koÍi jabolk 'Granny Smith'. Poskus je obsegal pet dnevno tretiranje plodov v nasiřeni atmosferi etanola in Ǵtirimeseřno skladiǴřenje tretiranih plodov pri temperaturi 0ŚC in 10ŚC. Trans, trans a-farnezen in konjugiran trienol - 3,7,11 trimetildodeka-1,3E,5E,10 tetraene-7-ol smo sintetizirali "in vitro" inju vzeli kot standard za identifikacijo in kvantifikacijo s pomořjo HPLC tehnike in 1H NMR. Aktivnosti encimov smo dolořili spektrofotometriřno z uporabo nitro blue tetrazoliuma (SOD), v primeru dolořevanja aktivnosti topnihperoksidaz smo kot substrat uporabili guaikol. Askorbinsko kislino in a-tokoferol smo dolořili s pomořjo tekořinske kromatografije visoke lořljivosti. Takoj po opravljenem tretiranju smo v plodovih skladiǴřenih na 10ŚC opazili zmanjǴanje koliřine tako askorbinske kisline kot a-tokoferola v primerjavi z kontrolo. Ugotovili smo, da pare etanola poveřajo aktivnost guaikol peroksidaze in superoksid dizmutaze. Vsebnost trans, trans a-farnezenain konjugiranega trienola je bila manjǴa v primerjavi z kontrolnim vzorcem. NiÍja temperatura skladiǴřa (0ŚC) ima enak uřinek na aktivnost omenjenih encimov. Spremembe antioksidantov so v glavnem manjǴe ali enake v primerjavi z netretiranimi plodovi. Obdelava plodov z nasiřenimi parami etanola vpliva na oksidativni stres plodov jabolk 'Granny Smith'.Type of material - undergraduate thesis ; adult, seriousPublication and manufacture - Ljubljana : [BF, Oddelek za živilstvo] : [E. Zlatič], 2000Language - slovenianCOBISS.SI-ID - 2431096
Author
Zlatić, Emil
Other authors
Hribar, Janez, 1947-2022 |
Abram, Veronika
Topics
skladiščenje sadja |
jabolka |
tretiranje z etanolom |
temperatura skladiščenja |
alfa-farnezen |
konjugirani trienol |
oksidativni stres |
oksidativni stres |
storage fruits |
apples |
ethanol vapour treatment |
storage temperature |
alpha-farnesene |
conjugated trienol |
oxidative stress |
oxidative stress
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Library | Call number – location, accession no. ... | Copy status |
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BF, Dept. of Food Science and Technology, Lj. | Hodnik DN 957 a IN: 0012331 |
available - outside loan, loan period: 1 months |
BF, Dept. of Food Science and Technology, Lj. | Hodnik DN 957 IN: 0012330 |
available - outside loan, loan period: 1 months |
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Database name | Field | Year |
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Links to authors' personal bibliographies | Links to information on researchers in the SICRIS system |
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Zlatić, Emil | 19640 |
Hribar, Janez, 1947-2022 | 00927 |
Abram, Veronika | 01522 |
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