Antioxidant activity of grapefruit extract from Citrus paradisi seeds and pulp

• Autorzy: Hoffmann M , Waszkiewicz-Robak B.

Warianty tytułu

PL

Aktywnosc antyoksydacyjna ekstraktu z nasion i pulpy owocu Citrus paradisi

• Języki publikacji: EN

Abstrakty

EN

Epidemiological studies have suggested associations between polyphenol-rich food con­sumption and the prevention of diseases. Currently, there is much interest in the health- fulness of citrus fruits because their intake appears to be associated with reduced risk of certain chronic diseases. In the paper a review of recent studies on antioxidant activity and physiological effect of grapefruit flavonoides has been conducted. Antioxidant activity of grapefruit extract has been studied in vitro and in vivo. It has been found that grapefruit compounds demonstrate good antioxidant potential, inhibit superoxide formation, show strong scavenging activity and anti-apoptopic activity. Results showed that hesperidin and naringin as well as their aglycones hesperedin and naringenin are mainly responsible for antioxidative activity of grapefruit extract and grapefruit juice. Citrus flavonoids became subjects of great concern with discovery of these compounds effects on capillary function. Research has also shown that citrus flavonoids and their metabolites are potent antioxi­dants. Thus, they are able to suppress many cases of cancer and inflammation involving reactive oxygen species. Recently published results concerning grapefruit potential in hu­mans show that diet supplemented with red grapefruit positively influences serum lipid levels of all fractions, especially serum triglycerides as well as serum antioxidant activity.

PL

Badania epidemiologiczne wskazują na występowanie związków między spożyciem żywności bogatej w polifenole a prewencją schorzeń. Szczególnym zainteresowaniem cieszą się owoce cytrusowe, których spożycie wiązane jest z obniżaniem ryzyka wielu chorób. W artykule dokonano przeglądu prac na temat aktywności antyoksydacyjnej i fiz­jologicznego oddziaływania flawonoidów występujących w owocach grapefruita. Aktywność antyoksydacyjna ekstraktu grapefruita badana była zarówno in vitro, jak in vivo. Dowiedziono, że ekstrakt wykazuje wysoki potencjał antyoksydacyjny, wychwytuje wolne rodniki, a także hamuje ich powstawanie, ma także hamujący wpływ na rozwój komórek rakowych, a jednym z mechanizmów tego działania jest apoptoza. Bioflawonoidy grejpfru­ta wykazują również działanie przeciwzapalne. Najnowsze badania wskazują również na korzystny wpływ spożycia owoców czerwonego grapefruita na poziom lipidów we krwi, szczególnie trójglicerydów. Wyniki badań wskazują, że za właściwości antyoksydacyjne ekstraktu i soku z grejpfruta odpowiadają flawanony - naringenina oraz jej glikozyd naringina, a także hesperydyna.

Słowa kluczowe

EN

Citrus paradisi; plant use; pulp; plant extract; medicinal plant; conference; antioxidant; plant cultivation; grapefruit; Lublin city; seed

• Wydawca: -
• Czasopismo: Herba Polonica
• Rocznik: 2007
• Tom: 53
• Numer: 3
• Opis fizyczny: p.380-384,ref.

Twórcy

autor

Hoffmann M

• Warsaw Agricultural University, Nowoursynowska 159C, 02-787 Warsaw, Poland

autor

Waszkiewicz-Robak B.

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