The antioxidative activity of a total of 92 phenolic extracts from edible and nonedible plant materials berries, fruits, vegetables, herbs, cereals, tree materials, plant sprouts, and seeds was examined by autoxidation of methyl linoleate. Tirzitis latvian institute of organic synthesis riga latvia keywords. Among them, the acetone extracts of both the plants exhibited higher and comparable activity 8,800 and 8,100. Antioxidant activity and free radical scavenging capacity. Standardized methods for the determination of antioxidant capacity and phenolics in foods and dietary supplements ronald l. Hepatoprotective and antioxidant activity of the ethanol extract of cassia fistula l. Among the important biological properties exhibited by plant polyphenols, their antioxidant activity has raised a great interest 1. Antioxidant properties of extracts from selected plant materials. Determination of antioxidant activity in different kinds of plants in. The many number of medicinal plants are used in the cellular and metabolic. Comparison between the radical scavenging activity and antioxidant activity of six distilled and nondistilled mediterranean herbs and aromatic plants. Phytochemicals are biologically active, naturally occurring chemical compounds found in plants that work with nutrients and dietary fiber to protect against. Antioxidant activity, pharmacology, plants, prooxidants.
Antioxidant activity will be determined as there is a direct correlation between reduction and antioxidant activity. Screening of in vitro antioxidant activity of methanolic. Ethiopia is one of the developing countries which have enormous diversity of plants. Antioxidant properties of several medicinal plants growing wild in northeastern iran. Antioxidant activity of polyphenolic plant extracts mdpi. Hepatoprotective and antioxidant activity of the ethanol. A number of studies have shown that plant polyphenols can be used as antioxidants against different oxidative stressinduced diseases 2,3. Antioxidant activity of plant extracts containing phenolic.
Journal of agricultural and food chemistry 2002, 50 23, 68826890. Assessment of antioxidant activity of plant extracts by different methods p. Antioxidant activity dpph free radical scavenging activity of methanolic extract the antioxidant activity of the plant extracts and the standard was assessed on the basis of the radical scavenging effect of the stable 1, 1diphenyl2picrylhydrazyl dpphfree radical activity by modified method. Abstract identification and characterization of natural products with antioxidant and antiproliferative activity has received much interest over the past few years. Pdf in vitro antioxidant and antiproliferative activity. Assessment of antioxidant activity of plant extracts by. Barks anis yohana chaerunisa, fitri nurul ramadhani, tami diyah nurani, aji najihudin, yasmiwar susilawati, and anas subarnas faculty of pharmacy, padjadjaran university, jl. Antioxidant plays a major role in protecting our body from disease by reducing the oxidative damage to cellular component caused by ros. Antioxidants free fulltext antioxidant activity of. The majority of the antioxidant activity is due to the flavones, isoflavones, flavonoids, anthocyanin, coumarin lignans, catechins and isocatechins 1. Thus, the aim of this study was to evaluate antioxidant capacity of the methanolic extracts from leaves of seven iranian medicinal plants collected from the northeast. Evaluation of antioxidant activity of medicinal plant extracts. A report on the in vitro antioxidant properties of vachellia karroo. Antioxidant properties of several medicinal plants growing.
The phenolic compounds content and antioxidant activity in plant are very necessary for human health in light of their high active compounds. It has been hypothesized that plant antioxidants may contribute to the beneficial health effects of dietary plants. Among the important biological properties exhibited by plant polyphenols, their antioxidant activity has raised a great interest. Gruzdiene department of food technology kaunas university of technology lithuania d. Pdf methods for determining the antioxidant activity. Phytochemical screening and antioxidant activity of moroccan. Antioxidant activity of plant extracts and their effect on. Department of agriculture, arkansas childrens nutrition center, 1120 marshall street, little rock, arkansas 72202, and department of food science, rutgers university, new brunswick, new jersey 089030231 methods. Commonly used medicinal plant extracts with standardized content of polyphenols were investigated for their total antioxidant activity taa. Significance of antioxidant potential of plants and its relevance to. Extract, free radical, antioxidant activity, medicinal plant. After six minutes, 125 l of 1 m sodium hydroxide and 68.
Phytochemical screening and antioxidant activity of. Antioxidant activity of the leaf extract was assessed by dpph, cuprac and pfrap assays using lascorbic acid as standard. Pdf antioxidant activity of some common plants researchgate. Researchers found that percent of reduction was greatest in red rice in ug. Green tea, oligomeric procyanidins from grape seed and pine bark, bilberry, and ginkgo exhibited taa in the range of 5. Antioxidant activities of some lamiaceae plant extracts. The antioxidant activity of such samples seems to be sufficient for functioning as potential nutraceuticals when they are ingested along with nutrients.
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