AKTIVITAS ANTIOKSIDAN EKSTRAK METANOL THE HIJAU KEMASAN MEREK X TERHADAP DPPH (2,2 diphenyl-1-picrylhydrazyl)
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چکیده
منابع مشابه
Analysis of Antioxidant in Curcuma Angustifolia Rhizome by 2,2-diphenyl-1-picrylhydrazyl (dpph) Method
Curcuma angustifolia also known as ‘haledo’ is commonly found in Sikkim and has many medicinal uses and has been used traditionally since ancient ages. Its rhizome is aromatic and the solvent extract of the rhizome has free radical scavenging activity which was carried out in this study by 2,2-diphenyl-1-picrylhydrazyl DPPH. Hot methanol extract and cold methanol extract of the dried powder of ...
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The decay of dpph˙ in absolute ethanol at 25 °C and in the presence of curcumin (1), 4-methylcurcumin (3), 4,4-dimethylcurcumin (4) or curcumin 4'-methyl ether (5) follows bi-exponential kinetics. These unusual reaction kinetics are compatible with a two-step process in which an intermediate accumulates in a reversible first step followed by an irreversible process. As in other similar cases (F...
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ژورنال
عنوان ژورنال: Klinikal Sains : Jurnal Analis Kesehatan
سال: 2019
ISSN: 2614-1515,2338-4921
DOI: 10.36341/klinikal_sains.v7i1.801