نتایج جستجو برای: phenolic extracts

تعداد نتایج: 108821  

2012
Ângelo Luís Nuno Gil Maria Emília Amaral Fernanda Domingues Ana Paula Duarte

Ailanthus altissima (Miller) Swingle is a tree used in Chinese traditional medicine as a bitter aromatic drug and in the treatment of colds and gastric diseases. Previous phytochemical studies have demonstrated the presence of quassinoids in the plant, as well as indole alkaloids. The purpose of this work was to determine the phenolic, flavonoid, and total alkaloid contents of the ethanolic, me...

Journal: :Acta poloniae pharmaceutica 2013
Dragana M Vucić Miroslav R Petković Branka B Rodić-Grabovac Olgica D Stefanović Sava M Vasić Ljiljana R Comić

Antibacterial and antioxidant activity, total phenolic and flavonoid concentrations of aqueous, ethanol and ethyl acetate extracts from the leaves and flowers of Erica herbacea L. were studied. In vitro antibacterial activity of the extracts was determined by macrodilution method. Minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) have been determined. Testing w...

2016
Hatice BAŞ Dilek PANDIR

Leafs have contain wide antioxidant range which may provide prevention against radical oxygen species. The aim of this work was to measure the antioxidant capacity of 15 commercially available leaf extracts (ethanol, methanol, water) using ferric reducing antioxidant power (FRAP) assay and trolox equivalent antioxidant capacity (TEAC) assay. Also we evaluated total phenolic and monomeric anthoc...

2015
Barbara Laddomada Miriana Durante Fiorenza Minervini Antonella Garbetta Angela Cardinali Isabella D’Antuono Sofia Caretto Antonio Blanco Giovanni Mita

In this study, the quali-quantitative composition of hydrophilic (phenolic acids) and lipophilic (isoprenoids) extracts from whole-meal flour of five elite Italian durum wheat cultivars was determined. Significant differences in the content of bioactive compounds were observed among the wheat extracts, in particular concerning the content of bound phenolic acids, lutein and β-tocotrienols. The ...

2013
Thanaset Senawong Suwatchai Misuna Somprasong Khaopha Suporn Nuchadomrong Prasan Sawatsitang Chanokbhorn Phaosiri Arpa Surapaitoon Banchob Sripa

BACKGROUND The rhizome of Hydnophytum formicarum Jack., a medicinal plant known in Thai as Hua-Roi-Roo, has been used in Thai traditional herbal medicine for treatment of cancer. We assessed the ability of its ethanolic and phenolic-rich extracts and its major phenolic compound, sinapinic acid, possessing histone deacetylase (HDAC) inhibitory activity to inhibit proliferation of 5 human cancer ...

2017
Bimal Kumar Ghimire Na-Young Son Seung-Hyun Kim Chang Yeon Yu Ill-Min Chung

The effect of water stress and herbicide treatment on the phenolic compound concentration and photosynthesis rate in transgenic Codonopsis lanceolata plants over-expressing the γ-tmt gene was investigated and compared to that in control non-transgenic C. lanceolata plants. The total phenolic compound content was investigated using high-performance liquid chromatography combined with diode array...

2014
Gokhan Zengin Ahmet Uysal Erdogan Gunes Abdurrahman Aktumsek

This study was focused on the analysis of the phenolic content, antioxidant, antibacterial, anti-cholinesterase, anti-tyrosinase, anti-amylase and anti-glucosidase activity of three solvent extracts from Cotoneaster nummularia. Moreover, water extract was tested in terms of mutagenic/anti-mutagenic effects. The antioxidant activities of these extracts were evaluated by DPPH, ABTS, O2, metal che...

2016
Herman Budnikov

Ultrasound-assisted micellar extraction of phenolic antioxidants from spices has been developed for the first time. The effect of the surfactant nature and its concentration on the extraction efficiency has been evaluated. Electrogenerated hexacyanoferrate(III) ions have been used as coulometric titrants owing to their selectivity towards phenolic antioxidants. The best recovery of phenolic ant...

2014
Cennet Ozay

In this study, antioxidant and antibacterial activities of various solvent extracts (methanol, ethanol, acetone and petroleum benzine) obtained from bulbs and leaves of Allium deciduum subsp. deciduum and subsp. retrorsum were investigated. Antioxidant activity of the extracts was determined by DPPH radical scavenging and β-carotene/linoleic acid assays. In addition, total phenolic contents in ...

Journal: :the iranian journal of pharmaceutical research 0
memnune sengul department of food engineering, faculty of agriculture, ataturk university, 2524 erzurum, turkey. sezai ercisli department of horticulture, faculty of agriculture, ataturk university, 25240 erzurum, turkey. hilal yildiz department of horticulture, faculty of agriculture, ataturk university, 25240 erzurum, turkey. neva gungor department of nutrition and dietetics, health school, erzincan university, 24100 erzincan, turkey. arzu kavaz department of food engineering, faculty of agriculture, ataturk university, 2524 erzurum, turkey. bülent çetin department of food engineering, faculty of agriculture, ataturk university, 2524 erzurum, turkey.

three native turkish medicinal and aromatic plants (artemisia absinthum, artemisia santonicum and saponaria officinalis) were investigated to analyze their antioxidant activity, total phenolic content and antimicrobial activity. their total antioxidant activity was determined by using a β-carotene bleaching assay and their antimicrobial activity was determined by utilizing an agar disc diffusio...

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