Antioxidant Properties of Artemisia annua Extracts in Model Food Emulsions

Antioxidants
Monika SkowyraMaría Pilar Almajano

Abstract

Artemisia annua is currently the only commercial source of the sesquiterpene lactone artemisinin. Although artemisinin is a major bioactive component present in this Chinese herb, leaf flavonoids have shown a variety of biological activities. The polyphenolic profile of extract from leaves of A. annua was assessed as a source of natural antioxidants. Total phenolic content and total flavonoid content were established and three assays were used to measure the antioxidant capacity of the plant extract. The measurement of scavenging capacity against the 2,2'-azino-bis-3-ethylbenzothiazoline-6-sulphonic acid (ABTS) radical cation, the oxygen radical absorbance capacity (ORAC) and the ferric reducing antioxidant power (FRAP) were 314.99 µM Trolox equivalents (TE)/g DW, 736.26 µM TE/g DW and 212.18 µM TE/g DW, respectively. A. annua extracts also showed good antioxidant properties in 10% sunflower oil-in-water emulsions during prolonged storage (45 days) at 32 °C. Artemisia extract at 2 g/L was as effective as butylated hydroxyanisole (BHA) at 0.02 g/L in slowing down the formation of hydroperoxides as measured by peroxide value and thiobarbituric acid reactive substances. The results of this study indicate that extract of A. annua m...Continue Reading

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Aug 10, 2013·Journal of the Science of Food and Agriculture·Monika SkowyraMaría Pilar Almajano

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Citations

Apr 5, 2016·Antioxidants·María Gabriela GallegoMaría Pilar Almajano Pablos
Mar 10, 2017·Antioxidants·María Gabriela GallegoMaría Pilar Almajano
Feb 7, 2019·Cellular and Molecular Neurobiology·Nasreena SajjadBashir Ahmad Ganai
Feb 18, 2020·Biotechnic & Histochemistry : Official Publication of the Biological Stain Commission·I AktaşA Türk
Jul 8, 2016·Journal of Food Science·Francisco Segovia Gómez, María Pilar Almajano Pablos
Jul 11, 2018·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Manel OuerfelliMaría Pilar Almajano
Sep 23, 2018·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Francisco J SegoviaMaría Pilar Almajano
Apr 25, 2021·Archives of Pharmacal Research·Dheeraj BishtDinesh Kumar Chellappan

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Methods Mentioned

BETA
column chromatography

Software Mentioned

Minitab
Mass Hunter Workstation

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