Results 21 to 30 of about 47,716 (256)
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
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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 +6 more
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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
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Structure-antioxidant Activity (Oxygen Radical Absorbance Capacity) Relationships of Phenolic Compounds [PDF]
, 2021 Abstract Antioxidant capacity is the extent to which a compound can eliminate reactive oxygen species, and in vitro methods for its chemical evaluation have been proposed. Among these methods, the oxygen radical absorbance capacity (ORAC) assay comes close to the oxidation reaction in the living body because it generates radical species that ...
Shuhei Sakurai +3 more
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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 +4 more
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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 +7 more
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Oxygen Radical Absorbance Capacity
Nippon Shokuhin Kagaku Kogaku Kaishi, 2011 ORAC (Oxygen Radical Absorbance Capacity : 活性酸素吸収能力）法は，米国国立老化研究所のCaoおよび米国農務省（USDA）のPriorらにより開発された抗酸化評価法である．生体成分の酸化反応に類似した反応様式を含む評価系として着目されている．米国では，326品目の果実および野菜を中心とした食品の抗酸化能をORAC法により評価し，USDAのホームページで公開すると共に，ORAC法をAssociation of Official Analytical Chemists（AOAC）に提案し，標準法として世界に普及させる方向にある．また，飲料やサプリメントへのORAC値の表記が実際に進んでいる．ORAC法の長所としては，1 ...
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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 +4 more
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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 +6 more
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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. +7 more
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