THE EFFECT OF RADIATION PRESERVATION ON MACROMOLECULE CONTENT, ANTIMICROBIAL ACTIVITY AND RADICAL - SCAVENGING POTENTIAL OF PORTULACA OLERACEA L. LEAVES EXTRACT

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creativework.keywordsantioxidants, bacterial strains, gamma radiation, P. oleracea, protectors
creativework.publisherUniversity of Chemical Technology and Metallurgyen
dc.contributor.authorKaramalakova Y.
dc.contributor.authorPetkova-Parlapanska K.
dc.contributor.authorHinkov I.
dc.contributor.authorVetskov N.
dc.contributor.authorGeorgieva E.
dc.contributor.authorNikolova G.
dc.date.accessioned2024-07-16T11:16:53Z
dc.date.accessioned2024-07-16T11:19:52Z
dc.date.available2024-07-16T11:16:53Z
dc.date.available2024-07-16T11:19:52Z
dc.date.issued2024-01-01
dc.description.abstractThe Portulaca oleracea L. (P. oleracea) phytochemical composition (contains omega-3 fatty acids, quercetin, rutin, gallo tannins, proteins) is responsible for its biological effects, e.g. antioxidative, antibacterial, anti-inflammatory and antiradiation activity. The plant has a C4 metabolism and it is known for its tolerance to different stressors, such as salinity, no water, high - temperature conditions, and 9 kGy radiation. The purpose of the present investigation was focused on the inhibitory effects of P. oleracea leaves extracts against 5 - 10 kGy radiation - induced abiotic stress, and assess to total phenol, flavonoid, and tannins content; antibacterial potential (Staphylococcus aureus ATCC25923, Escherichia coli ATCC 25922, Pseudomonas aeruginosa ATCC 27853) and antioxidant capacity. The free dried, powdered P. oleracea samples were 60Co irradiated, 50 % ethanol solvent (v/v) extracted and compared to 0 kGy extract. 10 kGy irradiated extract provide to be potentially effective against bacterial strains and possessed stable antioxidant activity, towards DPPH (p ˂ 0.002), ABTS•+ (p ˂ 0.05), FRAP (p ˂ 0.05) and NO (p ˂ 0.002). In addition, highly sensitive Electron Paramagnetic Resonance (EPR) was used to evaluate antiradical capacity. Single, symmetrical signal (g = 2.0023) was recorded in 10 kGy irradiated P. oleracea extract, comparable to the EPR signal in non-irradiated sample and depended directly on the antiradical potential. Moreover, in vitro P. oleracea inhibited the superoxide anion (•O2 −), hydroxyl (•OH), alkyl radicals, and exhibited antioxidant properties against 10 kGy irradiation.
dc.identifier.doi10.59957/jctm.v59.i2.2024.2
dc.identifier.issn1314-7978
dc.identifier.issn1314-7471
dc.identifier.scopusSCOPUS_ID:85186903780en
dc.identifier.urihttps://rlib.uctm.edu/handle/123456789/1444
dc.language.isoen
dc.source.urihttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85186903780&origin=inward
dc.titleTHE EFFECT OF RADIATION PRESERVATION ON MACROMOLECULE CONTENT, ANTIMICROBIAL ACTIVITY AND RADICAL - SCAVENGING POTENTIAL OF PORTULACA OLERACEA L. LEAVES EXTRACT
dc.typeArticle
oaire.citation.issue2
oaire.citation.volume59
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