Results 21 to 30 of about 91,821 (200)

Antioxidant activity and GC-MS profile of Conyza bonariensis L. leaves extract and fractions

open access: yesRevista Facultad Nacional de Agronomía Medellín, 2020
The 2,2-diphenyl-1-picrylhydrazyl (DPPH), ferric reducing power (FRAP), and semivolatile compounds of Conyza bonariensis L. leave extract and fractions are discussed. A methanolic crude extract was obtained through maceration, and subsequently, n-hexane,
Rafael Viteri Espinoza   +5 more
doaj   +1 more source

First Report on Bioaccessibility, Antioxidant Activity and Total Phenolic Compounds From Stachys thirkei C.Koch Using A Simulated In Vitro Digestion System

open access: yesJournal of Advanced Research in Natural and Applied Sciences, 2022
It is of great importance to determine the antioxidant properties of plants, especially those used for food, pharmacology and medicinal purposes. Stachys thirkei C.Koch belonging to Lamiaceae family is used as a medicinal aromatic plant in Turkey.
Gorkem Dulger   +2 more
doaj   +1 more source

Compuestos fenólicos y actividad antioxidante de los extractos de la hoja de chirimoya (Annona cherimola Mill)

open access: yesRevista Colombiana de Química, 2019
Después de la cosecha del fruto chirimoya, los árboles liberan enormes cantidades de hojas, las cuales son quemadas por los agricultores. Este trabajo muestra que las hojas pueden ser usadas para nuestro beneficio como antioxidante.
Gloria Sanchez-Gonzales   +4 more
doaj   +1 more source

Study of antioxidant activity of selected monocarbohydrazone derivatives

open access: yesZaštita Materijala, 2021
Many of carbohydrazone derivatives have shown a wide range of biological activities. In previous studies, these compounds have proven to be excellent anti-cancer, antitumor, antibacterial, antimicrobial and antioxidant agents. Monocarbohydrazones, as one
Gorana Mrđan   +4 more
doaj   +1 more source

Differences in antioxidant properties of ginkgo leaves collected from male and female trees

open access: yesActa Pharmaceutica, 2015
Total phenolic content and antioxidant capacity (FRAP method) of Ginkgo biloba L. leaves collected from male and female trees were determined and compared. Different water and aqueous ethanolic (water/ethanol 80/20, V/V) extracts were prepared by varying
Koczka Noémi   +3 more
doaj   +1 more source

Anomalous Diffusion Characterization by Fourier Transform FRAP with Patterned Illumination

open access: yesbioRxiv, 2020
Fourier transform fluorescence recovery after photobleaching (FT-FRAP) with patterned illumination is theorized and demonstrated for quantitatively evaluating normal and anomalous diffusion.
Andreas C. Geiger   +5 more
semanticscholar   +1 more source

Evaluation of the oxidative status of periparturient mares supplemented with high amount of α-tocopherol

open access: yesItalian Journal of Animal Science, 2019
Aim of the study was to investigate the oxidative status during peripartum period in mares fed high amount of dietary α-tocopherol. α-Tocopherol, ferric reducing ability of plasma (FRAP) and reactive oxygen metabolites (d-ROMs) levels were measured in ...
Francesca Martuzzi   +5 more
doaj   +1 more source

The Antioxidant Activity of Prenylflavonoids

open access: yesMolecules, 2020
Prenylated flavonoids combine the flavonoid moiety and the lipophilic prenyl side-chain. A great number of derivatives belonging to the class of chalcones, flavones, flavanones, isoflavones and other complex structures possessing different prenylation ...
Clementina M. M. Santos   +1 more
doaj   +1 more source

EFFECT OF EXTRACTION CONDITIONS ON TOTAL POLYPHENOL CONTENTS AND ANTIOXIDANT ACTIVITY OF PASSION FRUIT (Passiflora edulis) PEELS

open access: yesTra Vinh University Journal of Science, 2022
Passion fruit peel has been extracted by two methods, traditional extraction, and ultrasonic-assisted extraction to obtain the highest polyphenol content and to assess their antioxidant activity.
Duy The Phan   +2 more
doaj   +1 more source

Identification of Antioxidant Activity by Different Methods of a Freshwater Alga Microspora Sp. Collected From a High Mountain Lake

open access: yesHittite Journal of Science and Engineering, 2019
Algae contain a large amount of biological active compounds functioning as antioxidant, antimicrobial and anti-tumour. In the present research, antioxidant activity of freshwater alga Microspora sp.
Zeynep Akar, Bulent Akar, Bulent Sahin
doaj   +1 more source

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