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Antioxidant activities of two novel synthetic methylbenzenediol derivatives
2-(tert-butyl)-5-methylbenzene-1 4-diol 3-(tert-butyl)-5-methylbenzene-1 2-diol steric synergist effect DPPH Rancimat test
2014/8/11
2-(tert-Butyl)-5-methylbenzene-1,4-diol and 3-(tert-butyl)-5-methylbenzene-1,2-diol were synthesised by Friedel-Craft reaction of 2-methylbenzene-1,4-diol and 4-methylbenzene-1,2-diol, respectively, w...
Antioxidant activity of wines and related matters studied by EPR spectroscopy
antioxidant activity EPR wine vine grape vine leaf yeast sediment
2014/3/3
Antioxidant activity and free radicals were studied in various parts of Vitis vinifera plant in vivo and in wines using EPR spectroscopy. Antioxidative properties of polyphenolic substances play an im...
Antioxidant capacity and antioxidants of strawberry, blackberry, and raspberry leaves
DPPH Folin-Ciocalteau method Fragaria vesca Rubus fructicosus Rubus ideaus FRAP HPLC ORAC
2014/2/25
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)...
Antioxidant and antimicrobial activities of beet root pomace extracts
Beta vulgaris L. phenolic compounds bacterial culture betalains radical scavengig activity electron spin resonance
2014/2/25
We described the in vitro antioxidant and antimicrobial activities of ethanol, acetone, and water extracts of beet root pomace. Total contents of phenolics (316.30–564.50 mg GAE/g of dry extract), fla...
Effect of Treatment with Natural Antioxidant on the Chilled Beef Lipid Oxidation
Beef lipid oxidation quality shelf life taxifolin
2010/9/30
The effect of superficial treatment of beef trimm ings and beef knuckles with bone with taxifolin solution (1 g/L) on the lipid oxidation development during chilled storage was studied. Beef samples w...
Evaluation of Antioxidant Activity of Vegetables from Okinawa Prefecture and Determination of Some Antioxidative Compounds
antioxidant polyphenol luteolin chicoric acid
2009/6/18
We examined the phenolic contents of 45 species of vegetables and their radical scavenging activities for 1,1-diphenyl-2-picrylhydrazyl radical (DPPH·). High contents of phenolic compounds and strong ...
Antioxidant Activity of Some Edible Yemeni Plants Evaluated by Ferrylmyoglobin/ABTS?+ Assay
antioxidant activity Trolox equivalent antioxidant capacity(TEAC) Rumex acetosa Yemeni plants
2009/6/18
The antioxidant activity, expressed in mM Trolox equivalent antioxidant capacity (TEAC), of some edible Yemeni plants belonging to different families was evaluated using the ferrylmyoglobin/ABTS·+ met...
Relations between polyphenols content and antioxidant activity in vine grapes and leaves
vine grapes vine leaves stems downy mildew powdery mildew grey mould piceid resveratrol caftaric acid catechin epicatechin photochemiluminescence DPPH FRAP
2014/3/3
The occurrence and content of some polyphenols and the antioxidant activity of compounds present in grape berries, stems and leaves of Vitis vinifera L. were evaluated. Three white and three blue vari...
Antioxidant activity, β-glucan and lipid contents of oat varieties
oat antioxidants phenolic compounds β-glucans fatty acids EPR
2014/3/3
The antioxidant activity, total phenolic and β-glucans contents, and the fatty acid profile of total lipids in covered (black and yellow) and naked oats were studied. Oats with black hulls showed a si...
Antioxidant and radical scavenging activities of a barley crude extract and its fraction
barley phenolics antioxidant activity radical scavenging activity column chromatography
2014/3/4
Phenolic compounds were extracted from the Candle variety of hull-less waxy barley with 80% (v/v) methanol to yield a crude preparation. Seven fractions (I−VII) were separated from the barley ex...
The influence of gamma-irradiation on the formation of free radicals and antioxidant status of oregano (Origanum vulgare L.)
oregano irradiation EPR spectroscopy free radicals thermal stability life-time antioxidant activity
2014/3/4
The influence of various gamma-radiation dose absorptions on oregano (Origanum vulgare L.) solid samples was monitored by means of electron paramagnetic resonance (EPR) spectroscopy. Further, the anti...