20.500.12556/DKUM-94612 Analiza vsebnosti skupnih fenolov v skorji različnih genotipov murv (Morus sp.) diplomsko delo Analysis of Total Phenolic Contents in the Bark of Different Mulberry Genotypes (Morus sp.) V okviru diplomskega dela je bila analizirana vsebnost skupnih fenolov v skorji enoletnih poganjkov različnih genotipov murv (Morus sp.), z namenom ugotavljanja razlik glede na genotip in vrsto murv, vključenih v raziskavo. Dodatno je bila izvedena primerjava vsebnosti skupnih fenolov med skorjo in listi murv. V raziskavo so bile vključene referenčne svilogojske sorte, lokalna slovenska genotipa bele murve (Morus alba) ter križanec med belo in rdečo murvo (M. alba × M. rubra). Enoletni poganjki murv so bili vzorčeni v dveh terminih, skorja je bila po lupljenju liofilizirana in zmleta v fini prah. Skupni fenoli v skorji so bili analizirani po metodi Folin-Ciocalteu. Rezultati analize so pokazali statistično značilne razlike v vsebnosti skupnih fenolov med genotipi murv. Najvišja vsebnost skupnih fenolov v skorji je bila ugotovljena pri križancu bele in rdeče murve (5,14 ± 0,004 mg GAE/g SS), najnižja pa pri referenčni svilogojski sorti 'Kokusou' (4,60 ± 0,08 mg GAE/g SS). Prav tako je bilo ugotovljeno, da se vsebnost skupnih fenolov v skorji murv statistično značilno razlikuje med vrstama (p = 0,032). Primerjava skupnih fenolov med skorjo in listi je potrdila hipotezo, da je vsebnost skupnih fenolov v skorji nižja kot v listih. Rezultati so pokazali, da na vsebnost fenolnih spojin vplivajo tako genetski dejavniki kot tudi morfološko tkivo, kar poudarja pomen posameznih delov murv, ustreznega vzorčenja in izbire analitske metode pri nadaljnjih raziskavah bioaktivnih spojin v murvah. The content of total phenols in the bark of one-year old shoots of various mulberry (Morus spp.) genotypes was analysed within the scope of this thesis, with the aim of identifying differences based on genotype and species included in the analyses. Additionally, a comparison of total phenol content between bark and leaves was conducted. The study included reference sericultural cultivars, two local Slovenian white mulberry genotypes (Morus alba), and a hybrid between a white and a red mulberry (M. alba × M. rubra). One-year-old shoots were sampled at two different time points, and the bark was peeled, lyophilised, and ground into a fine powder. The total phenols were analysed using the Folin-Ciocalteu method. The results showed statistically significant differences in total phenol content among the genotypes. The highest content was observed in the hybrid of white and red mulberry (5.14 ± 0.004 mg GAE/g DW), and the lowest in the reference cultivar 'Kokusou' (4.60 ± 0.08 mg GAE/g DW). A statistically significant difference was also found between the two analysed species (p = 0.032). The comparison between bark and leaves confirmed the hypothesis, that the concentration of total phenols is lower in the bark than in the leaves. The findings indicate that both genetic factors and plant tissue type influence phenolic compound levels, highlighting the importance of appropriate sampling and analytical methods in future studies of bioactive compounds in mulberries. Morus sp. murva kemotipske razlike skorja skupni fenoli Morus sp. mulberry chemotypic differences stem bark total phenols true true false E. Vuk Slovenski jezik Angleški jezik Diplomsko delo/naloga 2025-08-22 15:09:41 2025-09-03 13:53:23 2025-09-13 03:27:54 0000-00-00 00:00:00 2025 0 Maribor 0 Maribor 1 spletni vir (1 datoteka PDF (X, 46, [2] str.)) 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 634.38:575.22:547.56(043.2)=163.6 247545603 VS_Vuk_Evelyn_2025.pdf VS_Vuk_Evelyn_2025.pdf 1 513E0942AACA28431E978DBF9A2D60A3 d41595d34c700261be04a57b494062ba229c67bd506965ff8295e809a433a6e0 26133547-8a55-11f0-b26f-00155d000105 https://dk.um.si/Dokument.php?lang=slv&id=197750 Fakulteta za kmetijstvo in biosistemske vede 0 0 0