Results 31 to 40 of about 4,301,617 (292)

Guidelines for antioxidant assays for food components

Food Frontiers, 2020
Recently, research on antioxidants has become increasingly active in various fields. Antioxidants react through free radical or molecular oxygen quenching, being capable to either delay or inhibit the oxidation processes that occur under the influence of
Fan Xiao, Tao Xu, Baiyi Lu, Ruihai Liu
doaj   +1 more source

Nutritional characterization of Moringa oleifera leaves, seeds, husks and flowers from two regions of Mexico

Agronomía Colombiana, 2020
Moringa oleifera (MO) is a native tree species found in the south of the Himalayas, India, Bangladesh, Afghanistan and Pakistan that is used commercially to produce tea, animal fodder and herbal medicines.
Salvador Horacio Guzmán-Maldonado, Marcela Josefina López-Manzano, Tomás Jesús Madera-Santana, Carlos Alberto Núñez-Colín, Claudia Patricia Grijalva-Verdugo, Alma Guadalupe Villa-Lerma, Jesús Rubén Rodríguez-Núñez   +6 more
doaj   +1 more source

Chemical-free recovery of protein from cow manure digestate solid and antioxidant activity of recovered protein

Environmental Challenges, 2021
Livestock manure solids have a significant content of protein which is not only underutilized, but prone to runoff and eventual breakdown to reactive nitrogen compounds, contributing to eutrophication.
Ken Tasaki
doaj   +1 more source

Assay of the antioxidant capacity of foods using an iron(II)-catalysed lipid peroxidation model for greater nutritional relevance [PDF]

, 2010
The formation of free radicals by the iron-catalysed Fenton reaction is a major cause of oxidative damage in the body. Here a common assay of antioxidant capacity, inhibition of the β-carotene-linoleic acid model of lipid peroxidation, has been modified ...
Molan, Peter C., Peter C. Molan, Hélène L. Brangoulo, Brangoulo, Helene L.   +3 more
core   +1 more source

Antioxidant Capacity in the Lipophilic Fraction of Alzheimer’s Brain Tissues

Biomolecules & Biomedicine, 2007
The aim of this study was to investigate the antioxidant capacity (AC) in the lipophilic fraction of postmortem motorcortex (MC), nucleus caudatus (NC) and gyrus temporalis (GT) from controls (C) and Alzheimer’s disease (AD) patients.
Aida Šapčanin, Emin Sofić, Ismet Tahirović, Ismet Gavrankapetanović, Kurt Kalcher   +4 more
doaj   +1 more source

Processed meat consumption and lung function: modification by antioxidants and smoking [PDF]

, 2014
Unhealthy dietary patterns are associated with poorer lung function. It is not known whether this is due to low consumption of antioxidant-rich fruit and vegetables, or is a consequence of higher intakes of harmful dietary constituents such as processed ...
Okubo, H., Syddall, H.E., Aihie Sayer, A., Sayer, AA, Shaheen, S.O., Grp, HCS, Cooper, C., Ntani, G, Jameson, KA, Robinson, SM, Dennison, E.M., Dennison, EM, Cooper, Cyrus, Cooper, C, Shaheen, SO, Syddall, HE, Okubo, H, Robinson, S.M., Ntani, G.   +18 more
core   +1 more source

Exploiting Kinetic Features of ORAC Assay for Evaluation of Radical Scavenging Capacity

Antioxidants, 2023
The analysis and interpretation of data retrieved from Oxygen Radical Absorbance Capacity (ORAC) assays represent a challenging task. ORAC indexes originate from different mathematical approaches often lacking correct elucidation of kinetic features ...
Joana R. B. Carvalho, Andreia N. Meireles, Sara S. Marques, Bruno J. R. Gregório, Inês I. Ramos, Eduarda M. P. Silva, Luisa Barreiros, Marcela A. Segundo   +7 more
doaj   +1 more source

Modification of the oxygen radical absorbance capacity assay and its application in evaluating the total antioxidative state in fish

Advances in Redox Research, 2022
The oxygen radical absorbance capacity (ORAC) assay is widely accepted as a common method for evaluating the total antioxidative activity in animals and food. The ORAC assay can simultaneously detect both hydrophilic (H-) and lipophilic (L-) antioxidants
Toshiki Nakano, Satoshi Hayashi, Yoshihiro Ochiai, Hitoshi Shirakawa, Haiyun Wu, Hideaki Endo, Hui Yu   +6 more
doaj   +1 more source

Synthesis and Evaluation of the Anti-Oxidant Capacity of Curcumin Glucuronides, the Major Curcumin Metabolites

Antioxidants, 2015
Curcumin metabolites namely curcumin monoglucuronide and curcumin diglucuronide were synthesized using an alternative synthetic approach. The anti-oxidant potential of these curcumin glucuronides was compared with that of curcumin using DPPH scavenging ...
Ambar K. Choudhury, Suganya Raja, Sanjata Mahapatra, Kalyanam Nagabhushanam, Muhammed Majeed   +4 more
doaj   +1 more source

The ORAC (oxygen radical absorbance capacity) index does not reflect the capacity of antioxidants to trap peroxyl radicals

RSC Advances, 2015
We demonstrate from kinetic studies that under the experimental conditions proposed for the ORAC protocol, ORAC values do not correlate with the capacity of antioxidants to trap peroxyl radicals (ROO˙), suggesting a dominant role of alkoxyl radicals (RO˙) in the assay.
Dorta, E., Fuentes Lemus, E., Aspée, A., Atala, E., Speisky Cosoy, Hernán, Bridi, R., Lissi Gervaso, Eduardo A., López Alarcón, Camilo   +7 more
openaire   +2 more sources