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2015 | 61 | 4 |

Tytuł artykułu

Antioxidant activity of Trachystemon orientalis (L.) G. Don (Borage) grown and eaten as food in Ordu, Turkey

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Treść / Zawartość

Warianty tytułu

PL
Aktywnośc antyoksydacyjna Trachystemon orientalis (L.) G.don (ogórecznika)uprawianego i spożywanego w prowincji Ordu w Turcji

Języki publikacji

EN

Abstrakty

EN
Instead of synthetic antioxidants, using of natural products with antioxidant activity is demanded. The aim of this study is to evaluate the antioxidant activity and total phenolic and flavonoid contents of the Trachystemon orientalis (borage) obtained from Ordu. The water and ethanol extracts of the borage plant were investigated by using several in vitro antioxidant activity tests such as total antioxidant capacity, O2OH, DPPH and ABTS radicals scavenging activities, hydrogen peroxide scavenging activity, FRAP, Fe2+ chelating and reducing power assays in order to make effective comparisons. Water extract of the T. orientalis had the more phenolic (90 mg GA/g extract) and flavonoid (56.88 mg CT/g extract) contents than ethanol extract. Furthermore, both of the extracts showed strong antioxidant and radical scavenging activities determined by different in vitro models. The highest total antioxidant capacity as ascorbic acid equivalents of 244.50 mg/g extract was also calculated for water extract. Generally, a relationship between total phenolic content and antioxidant activity was established. It is also an important finding for an edible food source that the phenolic and flavonoid content and antioxidative activities for water extract was higher than the ethanol extract. T. orientalis could be used as a food ingredient instead of synthetic antioxidants and all results will contribute to the recent increase in investigations on using natural products in many areas such as food, pharmacy, alternative medicine and natural therapy.
PL
Stosowanie produktów naturalnych o właściwościach antyoksydacyjnych jest bardziej korzystne niż antyoksydantów syntetycznych. Celem niniejszej pracy była ocena działania antyoksydacyjnego oraz oznaczanie całkowitej zawartości fenoli i flawonoidów w Trachystemon orientalis (ogóreczniku) pochodzącym z Ordu w Turcji. W celu określenia aktywności antyoksydacyjnej w wyciągu wodnym i etanolowym z ogórecznika zastosowano następujące testy in vitro: DPPH, ABTS i FRAP. Stwierdzono, że wyciąg wodny z T. orientalis zawierał więcej fenoli (90 mg GA/g ekstraktu) i flawonoidów (56,88 mg CT/g ekstraktu) w porównaniu do wyciągu etanolowego. Największą aktywność antyoksydacyjną w odniesieniu do kwasu askorbowego określono dla wyciągu wodnego z ogórecznika (244,50 mg/g). Ponadto wykazano, że zawartość fenoli i flawonoidów, a także działanie antyoksydacyjne, było wyższe w wyciągu wodnym niż etanolowym. Ogórecznik (T. orientalis) może być stosowany jako składnik pożywienia zamiast syntetycznych antyoksydantów. Przedstawione wyniki mogą przyczynić się do zintensyfikowania badań nad użyciem produktów naturalnych w wielu dziedzinach, takich jak produkcja żywności i leków, medycyna alternatywna oraz terapia naturalna.

Wydawca

-

Czasopismo

Rocznik

Tom

61

Numer

4

Opis fizyczny

p.40-51,ref.

Twórcy

autor
  • Department of Chemistry, Faculty of Arts and Sciences, Ordu University, 52200 Ordu, Turkey

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