potentilla prostrata/listă de antioxidanți

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UPLC-DAD quantification of chemical constituents of Potentilla atrosanguinea roots and their antioxidant activity.

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Potentilla atrosanguinea, native to Himalayan region, is well known for its curative effects in traditional medicinal system. An ultra performance liquid chromatography-diode array detection method for the quantification of constituents of root part of P. atrosanguinea has been developed along with

New hopane triterpenes and antioxidant constituents from Potentilla fulgens.

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Phytochemical investigation of the aerial parts of Potentilla fulgens L. led to the isolation of two new triterpenes, potentene A (1) and potentene B (2). In addition, three known compounds afzelchin-4alpha --> 8"-catechin (3), epiafzelchin (4) and rutin (5) were isolated. The structures of all

Two new stereoisomeric antioxidant triterpenes from Potentilla fulgens.

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The roots of Potentilla fulgens have been used for a long time as a folk remedy for many ailments without having information on its pharmacological action. Of the various extracts prepared by partitioning of the methanol extract, the ethyl acetate fraction was found to possess better antioxidant and

Antioxidant and pro-oxidant evaluation of a Potentilla alba L. rhizome extract.

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Using spectrophotometric methods, a H(2) O-soluble Potentilla alba L. rhizome extract was evaluated phytochemically, i.e., the total phenol, flavonoid, flavonol, flavanone, and proanthocyanidin contents were determined, and its antioxidant and pro-oxidant properties, i.e., the Fe(III) reductive and

Antioxidant activities of extracts from five anti-viral medicinal plants.

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The antioxidant activities of five medicinal plants (Ampelopsis sinica, Ampelopsis humiliforlia var. heterophylla, Potentilla freyniana, Selaginella labordei and Chrysanthemum multiflorum), used in the Hubei province of China, have been investigated using both enzymatic and non-enzymatic in vitro

Antidiabetic and antioxidant effects of extracts from Potentilla discolor Bunge on diabetic rats induced by high fat diet and streptozotocin.

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OBJECTIVE Potentilla discolor Bunge, commonly found at the north temperate and boreal zone, has been used for diabetes in China for a long time. Flavonoids and triterpenoids are two major types of compounds in P. discolor. This study was designed primarily to investigate the effects of total

Antioxidant and anti-inflammatory activity of Potentilla reptans L.

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Potentilla species have been used in traditional medicine in the treatment of different ailment, disease or malady. Potentilla reptans (P. reptans) has been scarcely studied. The aim of this study was to test antioxidant and anti-inflammatory activity of P. reptans aerial part and rhizome. DPPH

Effect of Potentilla fulgens on lipid peroxidation and antioxidant status in alloxan-induced diabetic mice.

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Potentilla fulgens (Rosaceae) root traditionally used as a folk remedy by local health practitioners of Khasi Hills, Meghalaya was investigated for its effects on lipid peroxidation and antioxidant status in alloxan-induced diabetic mice. Significant increase in levels of thiobarbituric acid

Effects of extraction methods on phenolic contents and antioxidant activity in aerial parts of Potentilla atrosanguinea Lodd. and quantification of its phenolic constituents by RP-HPLC.

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The effects of different solvent systems (methanol, ethanol, acetone, and their 50% aqueous concentrations) and extraction procedures (microwave, ultrasound, Soxhlet and maceration) on the antioxidant activity of aerial parts of Potentilla atrosanguinea were investigated by three different

Selenylation modification can enhance antioxidant activity of Potentilla anserina L. polysaccharide.

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Potentilla anserina L. polysaccharide had been selenizingly modified by nitric acid-selenious acid method with microwave-assistant. The optimal reaction parameters on selenylation modification were time 116 min, temperature 63°C, microwave power 190 W and the actual value of selenium content was

Antihypercholesterolaemic and antioxidant activity assessment of some plants used as remedy in Turkish folk medicine.

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Ethanolic and aqueous extracts from five plant species used in Turkish traditional medicine were evaluated for in vivo hypercholesterolaemic and antioxidant activities: Agrostemma githago L., Potentilla reptans L., Thymbra spicata var. spicata L., Urtica dioica L. and Viscum album var. album L. We

In vitro antioxidant and anti-inflammatory activities of extracts from Potentilla recta and its main ellagitannin, agrimoniin.

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BACKGROUND Potentilla recta is one of the numerous cinquefoil species growing in Poland. It is used in traditional medicine e.g. in the treatment of skin inflammation. OBJECTIVE The purpose of the present study is to evaluate antioxidant and anti-inflammatory activities of extracts and subfractions

Characterization of antioxidant, α-glucosidase and tyrosinase inhibitors from the rhizomes of Potentilla anserina L. and their structure-activity relationship

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Five new flavonoids (1-5), along with 25 known compounds, were isolated from the rhizomes of Potentilla anserina L. and their structures were identified using spectroscopic and chemical evidence. The extract, all fractions, and all isolated compounds were evaluated for their antioxidant,

Phenolic profiles and antioxidant capacities of crude extracts and subsequent fractions from Potentilla fruticosa L. leaves.

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This work aimed to further investigate the phenolic profiles and antioxidant capacities of the crude extracts and the subsequent fractions of Potentilla fruticosa leaves. Result showed that P. fruticosa leaves contained high amounts for hyperoside, ellagic acid and (+)-catechin contents, and the

Phenolic Compounds and Antioxidant Activity of Different Organs of Potentilla fruticosa L. from Two Main Production Areas of China.

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This report compared the phenolic compounds and antioxidant activity of the leaves, flowers, and stems of Potentilla fruticosa L. collected from two main production areas of P. R. China (Taibai Mountains and the Qinghai Huzhu Northern Mountains). The results indicated that there were significant

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