نتایج جستجو برای: antioxidant agents

تعداد نتایج: 447797  

Journal: :jundishapur journal of natural pharmaceutical products 0
sayed ahmad emami department of pharmacognosy, school of pharmacy, mashhad university of medical sciences, mashhad, ir iran ali shahani department of pharmacognosy, school of pharmacy, mashhad university of medical sciences, mashhad, ir iran mohammad hassanzadeh khayyat pharmaceutical sciences research center, department of medicinal chemistry, school of pharmacy, mashhad university of medical sciences, mashhad, ir iran; pharmaceutical sciences research center, department of medicinal chemistry, school of pharmacy, mashhad university of medical sciences, p.o. box: 91775-1365, mashhad, ir iran. tel: +98-511882325565, fax: +98-5118823251

results the results of the study, using the two methods, showed that all methanol extracts of leaves and fruits of the six species possessed antioxidant activity. the antioxidant activity of the samples was compared with the antioxidant activities of butylatedhydroxytoluene (bht), as a synthetic antioxidant and α-tocopherol as a natural antioxidant. methanol extractions of pinus spp. leaves and...

2015
Homar S. Barcena Peishan Chen Abraham Tuachi

Anthocyanidins were synthesized to study the effect of methoxy substitution on the B ring to their antioxidant property. Comparative FRAP studies show 2'- and 4'-methoxy substituents have higher antioxidant activities, which may be attributed to both resonance and inductive effects.Graphical abstract:Anthocyanidins as reducing agents.

Journal: :Polycyclic Aromatic Compounds 2022

Series of new thirteen annulated heterocyclic were prepared and screened for their antioxidant activities. The ethyl-4(2-cyanoacetamido)benzoate as a multifunctional component which possess both electrophilic nucleophilic centers that utilized in organic synthesis different candidates. These compounds studied antioxidants at concentrations based on DPPH ABTS assays using ascorbic acid standard ...

Journal: :Asian Journal of Pharmaceutical and Clinical Research 2018

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