Polyphenolic Content and Antioxidant Capacity of Tomato Leaves Extracts Infected With Late Blight
Sadržaj polifenola i antioksidativni kapacitet ekstrakata listova paradajza zaraženih plamenjačom
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Author
Prvulovic, Dejan
Medic-Pap, Sladjana
Danojevic, Dario
Tancic-Zivanov, Sonja
Latkovic, Dragana
Keywords
antioxidant activitylate blight
polyphenolics
tomato
antioksidantni testovi
fenoli
paradajz
plamenjača
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Late bligth is one of the main causes of the tomato yeild losses. In this paper, the biochemical response of tomato variety Plovdivski kasni in leaves infected with Phytopththora infestans was analyzed. It was found that there is a correlation between the degree of disease severity and the content of total polyphenols and flavonoids in the leaves. The different content of phenolic compounds also affected the antioxidant capacity of leaf extracts. By increasing the degree of infection, the content of the soluble polyphenolic compounds and the antioxidant capacity of the leaves decreased. Plamenjača je jedan od glavnih uzroka smanjenja prinosa paradajza što može dovesti do velikih ekonomskih gubitaka. U ovom radu je ispitan biohemijski odgovor listova paradajza sorte ‘Plovdivski kasni’ na infekciju prouzrokovačem plamenjače Phytopththora infestans. Utvrđeno je da postoji korelacija između stepena zaraženosti biljke i sadržaja ukupnih polifenola i flavonoida u listovima. Različit sadržaj fenolnih jedinjenja je uticao i na antioksidativni kapacitet ekstrakata listova. Povećanjem stepena infekcije sadržaj rastvorljivih polifenolnih jedinjenja i antioksidativni kapacitet listova se smanjivao.