Comparison of scavenging capacities of vegetables by ORAC and EPR

Kameya, Hiromi; Watanabe, Jun; Takano-Ishikawa, Yuko; Todoriki, Setsuko

doi:10.1016/j.foodchem.2013.09.015

Cited by 25 publications

(17 citation statements)

References 32 publications

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“…These results indicate that total polyphenols and procyanidins correlate with the scavenging capacities of all ROS except for the hydroxyl radical. The difference in the scavenging capacity for hydroxyl radical from those for other ROS agrees with the result previously reported (Kameya, Watanabe, Takano-Ishikawa, & Todoriki, 2014), in which the oxygen radical absorbance capacity of vegetables was found to correlate with the scavenging capacities for the alkoxyl and superoxide radicals but not the hydroxyl radical. The reason for such phenomenon suggested in the above-mentioned literature was that the scavenging capacity of each ROS appears to depend on the specific components in each food type.…”

Section: Ros Scavenging Capacity Polyphenols and Procyanidins In Peasupporting

confidence: 91%

“…As the fluorescence peak location of procyanidins has a VIP value higher than 1, it is considered to contribute to the good estimation of the scavenging capacities for the alkoxyl and superoxide radicals by FF. This agrees with other reports in the literature that procyanidins correlate linearly with ORAC value (Adamson et al, 1999), which in turn correlates with the scavenging capacities for the alkoxyl and superoxide radicals (Kameya et al, 2014). Procyanidins were also reported to be able to prevent lipid oxidation (Lotito et al, 2000).…”

Section: Cultivarsupporting

confidence: 91%

“…On the other hand, the RPD value of the superoxide radical exceeds 2.5, suggesting that the model can predict the response very well. As the scavenging capacities for these two radicals were reported to highly correlate with ORAC values (Kameya et al, 2014), it can be noted that FF also has a potential use for estimating ORAC value.…”

Section: Estimation Of Ros Scavenging Capacity By Ffmentioning

confidence: 95%

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Simultaneous estimation of scavenging capacities of peach extract for multiple reactive oxygen species by fluorescence fingerprint method

et al. 2017

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Section: Ros Scavenging Capacity Polyphenols and Procyanidins In Peasupporting

confidence: 91%

Section: Cultivarsupporting

confidence: 91%

Section: Estimation Of Ros Scavenging Capacity By Ffmentioning

confidence: 95%

See 1 more Smart Citation

Simultaneous estimation of scavenging capacities of peach extract for multiple reactive oxygen species by fluorescence fingerprint method

et al. 2017

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“…The use of the EPR technique in food analysis studies is very common [37]. The CD extract at different concentrations competes with the spin trap in the scavenging of methoxy radicals.…”

Section: Discussionmentioning

confidence: 99%

Effect of Leaves of Caesalpinia decapetala on Oxidative Stability of Oil-in-Water Emulsions

et al. 2017

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Caesalpinia decapetala (Roth) Alston (Fabaceae) (CD) is used in folk medicine to prevent colds and treat bronchitis. This plant has antitumor and antioxidant activity. The antioxidant effects of an extract from Caesalpinia decapetala (Fabaceae) were assessed by storage of model food oil-in-water emulsions with analysis of primary and secondary oxidation products. The antioxidant capacity of the plant extract was evaluated by the diphenylpicrylhydrazyl (DPPH), Trolox equivalent antioxidant capacity (TEAC), oxygen radical absorbance capacity (ORAC) and ferric reducing antioxidant power (FRAP) assays and by electron paramagnetic resonance (EPR) spectroscopy. Lyophilized extracts of CD were added at concentrations of 0.002%, 0.02% and 0.2% into oil-in-water emulsions, which were stored for 30 days at 33 ± 1 °C, and then, oxidative stability was evaluated. The CD extract had high antioxidant activity (700 ± 70 µmol Trolox/g dry plant for the ORAC assay), mainly due to its phenolic components: gallic acid, quercetin, catechin, 4-hydroxybenzoic acid and p-coumaric acid. At a concentration of 0.2%, the extract significantly reduced the oxidative deterioration of oil-in-water emulsions. The results of the present study show the possibility of utilizing CD as a promising source of natural antioxidants for retarding lipid oxidation in the food and cosmetic industries.

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“…Analysis was carried out according to the method as described previously. [16][17][18] The 50 μL of the synthesized diferuloylspermine, conventional antioxidants, the standards or a blank were added to a 50 μL solution of precursor/sensitizer, a 20 μL solution of CYPMPO (10 mmol/L) and an 80 μL solution of sodium phosphate buffer into an ESR flat cell. In these cases, the precursor/sensitizer reagents utilized for superoxide and hydroxyl radicals were riboflavin and hydrogen peroxide, respectively.…”

Section: Reagentsmentioning

confidence: 99%

N 1, N14-diferuloylspermine as an antioxidative phytochemical contained in leaves of Cardamine fauriei

Abe

Matsuura

Ukai

et al. 2017

Bioscience, Biotechnology, and Biochemistry

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Most Brassicaceae vegetables are ideal dietary sources of antioxidants beneficial for human health. Cardamine fauriei (Ezo-wasabi in Japanese) is a wild, edible Brassicaceae herb native to Hokkaido, Japan. To clarify the main antioxidative phytochemical, an 80% methanol extraction from the leaves was fractionated with Diaion® HP-20, Sephadex® LH-20, and Sep-Pak® C18 cartridges, and the fraction with strong antioxidant activity depending on DPPH method was purified by HPLC. Based on the analyses using HRESIMS and MS/MS, the compound might be N, N-diferuloylspermine. This rare phenol compound was chemically synthesized, whose data on HPLC, MS and H NMR were compared with those of naturally derived compound from C. fauriei. All results indicated they were the same compound. The radical-scavenging properties of diferuloylspermine were evaluated by ORAC and ESR spin trapping methods, with the diferuloylspermine showing high scavenging activities of the ROO, O, and HO radicals as was those of conventional antioxidants.

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Comparison of scavenging capacities of vegetables by ORAC and EPR

Cited by 25 publications

References 32 publications

Simultaneous estimation of scavenging capacities of peach extract for multiple reactive oxygen species by fluorescence fingerprint method

Simultaneous estimation of scavenging capacities of peach extract for multiple reactive oxygen species by fluorescence fingerprint method

Effect of Leaves of Caesalpinia decapetala on Oxidative Stability of Oil-in-Water Emulsions

N 1, N14-diferuloylspermine as an antioxidative phytochemical contained in leaves of Cardamine fauriei

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