magistrsko delo
Pia Mihelj (Author), Helena Šircelj (Mentor), Maja Mikulič Petkovšek (Co-mentor)

Abstract

V raziskavi smo določili vsebnosti nekaterih pomembnih bioaktivnih spojin v izbranih vrstah penuš (Cardamine L.), ki spadajo med užitne plevele. Rastline smo nabirali v spomladanskem času. Dlakavo penušo (C. hirsuta L.) smo nabirali v šestih različnih terminih, medtem ko smo ostale izbrane vrste penuš nabrali v enem časovnem terminu. Analizirali smo klorofile, karotenoide, tokoferole in fenolne spojine. Dlakava penuša je bila s stališča lipofilnih antioksidantov najbolj bogata v fazi tvorbe socvetij, ko smo izmerili največje vsebnosti karotenoidov (1,94 mg/g SM), klorofilov (5,07 mg/g SM) in tokoferolov (200 µg/g SM), a se ni statistično značilno razlikovala od prve faze vzorčenja listne rozete in faze cvetenja. Največje vsebnosti skupnih fenolnih spojin smo določili v vzorcih dlakave penuše, ki smo jih nabrali v fazi začetka cvetenja (15,55 mg GAE/g), cvetenja (16,87 mg GAE/g) in razvoja plodov (15,68 mg GAE/g). Če upoštevamo vsebnost antioksidantov, je dlakava penuša najbolj primerna za nabiranje v fazi cvetenja. Ugotovili smo, da se posamezne vrste penuš v vsebnosti bioaktivnih snovi med seboj statistično značilno ne razlikujejo. Izjema je bila travniška penuša (C. pratensis L.), v kateri smo izmerili največje vsebnosti skupnih tokoferolov in fenolov. V primerjavi z izbrano gojeno zelenjavo iz drugih raziskav so se brstična konopnica (C. bulbifera L.), dlakava, travniška in grenka penuša izkazale za zelo dober vir bioaktivnih snovi.

Keywords

penuše;dlakava penuša;križnice;bioaktivne snovi;zdravje ljudi;

Data

Language: Slovenian
Year of publishing:
Typology: 2.09 - Master's Thesis
Organization: UL BF - Biotechnical Faculty
Publisher: [P. Mihelj]
UDC: 582.683.2:543.61(043.2)
COBISS: 27716355 Link will open in a new window
Views: 463
Downloads: 121
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Other data

Secondary language: English
Secondary title: Bioactive compounds of selected edible wild Cardamine spp.
Secondary abstract: The content of some important bioactive compounds in selected species of edible weeds from genus bittercress (Cardamine spp.), was analysed in this study. Plants were harvested in spring. Hairy bittercress (C. hirsuta L.) was collected in six different timespans, whereas the other selected species of bittercress were collected in a single timespan. We analysed the chlorophylls, carotenoids, tocopherols and phenolic compounds. Regarding lipophilic antioxidants, hairy bittercress was the richest in the phase of forming inflorescence, when the highest values of carotenoids (1,94 mg/g SM), chlorophylls (5,07 mg/g SM) and tocopherols (200 µg/g SM) was measured; however, the difference was not statistically significant compared to the first sampling phase of leaf rosette and blooming faze. The highest contents of total phenolic compounds were determined in hairy bittercress samples collected in the phase of early blooming (15,55 mg GAE/g), during blooming (16,87 mg GAE/g) and in the phase of developing fruit (15,68 mg GAE/g). Considering the contents of antioxidants, hairy bittercress is most suitable for collecting in the blooming time. Individual species of bittercress did not significantly differ in their bioactive compounds content. An exception was the meadow bittercress (C. pratensis L.), which had the highest levels of total tocopherols and phenols. Compared to selected cultivated vegetables from other studies, the coralroot (C. bulbifera L.), hairy bittercress, meadow bittercress and large bittercress have proven to be very good sources of bioactive compounds.
Secondary keywords: bittercress;hairy bittercress;brassicaseae;bioactive compounds;health benefits;
Type (COBISS): Master's thesis/paper
Study programme: 0
Thesis comment: Univ. v Ljubljani, Biotehniška fak., Oddelek za agronomijo
Pages: IX, 50 f., [1] f. pril.
ID: 12025912