Results 21 to 30 of about 4,146,519 (301)

New Derivatives of 3,4-Dihydroisoquinoline-3-carboxylic Acid with Free-Radical Scavenging, D-Amino Acid Oxidase, Acetylcholinesterase and Butyrylcholinesterase Inhibitory Activity

Molecules, 2014
A series of 3,4-dihydroisoquinoline-3-carboxylic acid derivatives were synthesised and tested for their free-radical scavenging activity using 2,2-diphenyl-1-picrylhydrazyl radical (DPPH·), 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) radical ...
Jolanta Solecka, Adam Guśpiel, Magdalena Postek, Joanna Ziemska, Robert Kawęcki, Katarzyna Łęczycka, Agnieszka Osior, Bartłomiej Pietrzak, Krzysztof Pypowski, Agata Wyrzykowska   +9 more
doaj   +1 more source

Antioxidant Activity In Vitro Guided Screening and Identification of Flavonoids Antioxidants in the Extract from Tetrastigma hemsleyanum Diels et Gilg

International Journal of Analytical Chemistry, 2021
This study aimed to investigate the extract with high antioxidant activity of Tetrastigma hemsleyanum Diels et Gilg and identify the antioxidant components in vitro.
Li Ding, Xiaomin Zhang, Jiajia Zhang
doaj   +1 more source

Antioxidant activity and phenolic content of leaf infusions of Myrtaceae species from Cerrado (Brazilian Savanna)

Brazilian Journal of Biology
There is considerable interest in identifying new antioxidants from plant materials. Several studies have emphasized the antioxidant activity of species belonging to the Myrtaceae family.
L. K. Takao, M. Imatomi, S. C. J. Gualtieri   +2 more
doaj   +1 more source

Flavonoid Constituents and Free Radical Scavenging Activity of

Natural Product Communications, 2011
Antioxidant capacity of the methanolic extract of Alchemilla mollis was measured by its ability to scavenge the DPPH radical. The EtOAc fraction obtained after partition of the total extract was found to be the most active radical scavenger (IC 50 9.8 ...
Antoaneta Trendafilova, Milka Todorova, Milena Nikolova, Anna Gavrilova, Antonina Vitkova   +4 more
doaj   +1 more source

Free Radical Scavenging of Related Chromenone Derivatives

, 2021
The thesis aims to provide evidence supporting the antioxidant efficacy and potential therapeutic effect of chromenone derivatives, in particular, chromone-3-carboxylic acid.
Özen, Hüseyin
core  

Analysis of volatile components and screening of free radical-scavenging active components in fresh Guhong tangerine peel essential oil

Shipin yu jixie
ObjectiveTo analyze the volatile components of fresh Guhong tangerine peel essential oil, evaluate its overall free radical scavenging activity, quickly screen the components with strong free radical scavenging activity without separating individual ...
RAN Chunxia, HU Jiang, DENG Huiling
doaj   +1 more source

Volatile Compounds and Antioxidant Capacity of the Bio-Oil Obtained by Pyrolysis of Japanese Red Pine (Pinus Densiflora Siebold and Zucc.)

Molecules, 2015
In the present study, sawdust bio-oil (SBO) manufactured by fast pyrolysis of Japanese red pine (Pinus densiflora Siebold and Zucc.) sawdust was analyzed for its volatile chemical compound composition and evaluated for its free radical scavenging ...
Jayanta Kumar Patra, Sung Hong Kim, Hyewon Hwang, Joon Weon Choi, Kwang-Hyun Baek   +4 more
doaj   +1 more source

Free radical scavenging activities and bioactive substances of Jerusalem artichoke (Helianthus tuberosus L.) leaves

, 2012
The total phenolic content and radical scavenging activities of Jerusalem artichoke (Helianthus tuberosus L.) leaves were investigated. Results indicated that the ethyl acetate fraction contained the highest total phenolic content (266.69 +/- 2.51 mg GAE/
Gao, Mingzhe, 肖红斌, Yuan, Xiaoyan, Tan, Chengyu, Du, Yuguang, Xiao, Hongbin   +5 more
core   +1 more source

Emerging experimental and computational methods for studying redox‐regulated structural transitions

FEBS Letters, EarlyView.
Redox reactions can reshape proteins and alter how they behave in cells, with important consequences for health and disease. This review explores emerging experimental and computational approaches for discovering these redox‐sensitive protein switches, revealing their structural effects, and predicting their behavior, opening new opportunities to ...
Tasneem Rass, Dana Reichmann, Gábor Erdős   +2 more
wiley   +1 more source

Free Radical Scavenging Activities of Methanol Extract and Fractions of Picralima nitida (Apoceanacea)

Journal of Applied Sciences and Environmental Management, 2013
Picralima nitida commonly called picralima or pile plant is a tree or shrub with widely varied applications in West African folk medicine. The study evaluated the free radical scavenging activities of the crude methanol extract of Picralima nitida root ...
Osayemwenre Erharuyi, Abiodun Falodun
doaj   +3 more sources