Results 51 to 60 of about 582,976 (313)

Chromatographic Analysis and Antioxidant Capacity of

Natural Product Communications, 2014
In this study we evaluated the composition of the crude extract and fractions of Tabernaemontana catharinensis (Apocynaceae) by HPLC/DAD and GC/MS. We also tested the antioxidant capacity and investigated the contents of polyphenols, flavonoids, tannins ...
Aline A. Boligon, Mariana Piana, Thiago G. Schawnz, Romaiana P. Pereira, João B. T. Rocha, Margareth L. Athayde   +5 more
doaj   +1 more source

SYNTHESIS AND ANTIOXIDANT CAPACITY OF (CHLOROBENZYLIDENE)HYDRAZINYL-THIAZOLES

Studia Universitatis Babes-Bolyai Chemia, 2019
2-(chlorobenzilidene)hydrazinyl-thiazole derivatives were conveniently prepared by Hantzsch reaction protocol, starting with thiosemicarbazone and ethyl 2-bromo-3-oxo-3-phenylpropanoate. Their antioxidant capacity was screened by electron transfer based
Adriana GROZAV, Daniela HANGANU, Ovidiu CRIȘAN, Dan Ioan PORUMB, Castelia CRISTEA   +4 more
doaj   +1 more source

Antioxidant activity of alkyl gallates and glycosyl alkyl gallates in fish oil in water emulsions: Relevance of their surface active properties and of the type of emulsifier [PDF]

, 2015
The antioxidant activity of gallic acid and a series of alkyl gallates (C4-C18) and glycosylated alkyl gallates (C4-C18) on fish oil-in-water emulsions was studied.
González, M. Jesús, Lucas Rodríguez, Ricardo, Maldonado, Olivia S., Medina, Isabel, Morales, Juan C.   +4 more
core   +2 more sources

Antioxidant Capacity and Antimicrobial Activity of Commercial Samples of Guava Leaves (\u3cem\u3ePsidium guajava\u3c/em\u3e) [PDF]

, 2020
Psidium guajava is a small tree native to South and Central America. Guava leaves have traditionally been used for treating different illnesses. These benefits can be attributed to phenolics and flavonoids produced by guava.
Alsaidi, Sahar, Bonnaire, Thierry, Cornejal, Nadjet, Cruz Rodriguez, Gearoff, Cruz, Victor, Fernandez Romero, Jose, Gomez Ramirez, Aned, Koroch, Adolfina, Melo, Claudia, Priano, Christine, Sorel, Victor, Zydowsky, Thomas M   +11 more
core   +2 more sources

Dietary antioxidant supplementation improves the in vitro quality and antioxidant capacity of Colombian Creole stallion semen

Czech Journal of Animal Science
Dietary antioxidant supplementation has become popular for managing male infertility because of its impact on the antioxidant capacity of semen. This study evaluates the effect of dietary antioxidant supplementation on the seminal characteristics of ...
Maria Claudia Puerta, Laura Henao-Salazar, Isabel Catalina Vélez, Sergio León, Banjamín Rojano, Giovanni Restrepo, Alexandra Úsuga   +6 more
doaj   +1 more source

Antioxidant capacity and antioxidants of strawberry, blackberry, and raspberry leaves [PDF]

Czech Journal of Food Sciences, 2011
The total phenolic content (Folin-Ciocalteu method), free radical scavenging ability expressed as DPPH value, ferric reducing antioxidant capacity (FRAP), and oxygen radical absorbance capacity (ORAC) were determined in water extracts of leaves from Rosaceae family plants (Fragaria vesca L., Rubus fructicosus L., and Rubus idaeus L.).
Buricova, Lucie, Andjelkovic, Mirjana, Cermakova, Anna, Reblova, Zuzana, Jurcek, Ondrej, Kolehmainen, Erkki, Verhe, Roland, Kvasnicka, Frantisek   +7 more
openaire   +3 more sources

Evaluating the Antioxidant Capacity of Rheum Ribes via Cupric Reducing Antioxidant Capacity, Ferric Reducing Antioxidant Power and 2,2-Diphenyl-1- picrylhydrazyl Methods

Pharmata
Objective: It was aimed at determining the antioxidant capacity of the above-ground parts of the Rheum ribes species, known as “Iskın,” which grows in the high parts of Erzurum province, using different methods.Methods: Methanol extracts have been ...
Esen Sezen Karaoğlan, Onur Senol, Semih Özli   +2 more
doaj   +1 more source

UHPLC-PDA-ESI-TOF/MS metabolic profiling and antioxidant capacity of arabica and robusta coffee silverskin: antioxidants vs phytotoxins [PDF]

, 2017
A deeper knowledge of the chemical composition of coffee silverskin (CS) is needed due to the growing interest in its use as a food additive or an ingredient of dietary supplements.
Lavecchia, R., Panusa, A., Petrucci, R., Zuorro, A.   +3 more
core   +1 more source

Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system

FEBS Letters, EarlyView.
Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley   +1 more source

STUDY OF ANTIOXIDANT CAPACITY OF DIFFERENT PARTS OF TWO SOUTH ALGERIAN EGGPLANT CULTIVARS [PDF]

Journal of Fundamental and Applied Sciences, 2012
In this study the antioxidant capacity of ethanolic EE and water WE extracts from different parts (calyx, peel, and pulp) of eggplant (Solanum melongena L) were evaluated using cyclic voltammetry.
C. Boubekri, A. Rebiai, T. Lanez
doaj