نتایج جستجو برای: phenolic content

تعداد نتایج: 431543  

2013
Daniel A. Abugri Wendell H. McElhenney

Extending the knowledge on secondary metabolites and the effect of solvent of extraction in mushrooms, We investigated five mushrooms species; two cultivated edible (Agaricus bisporus (brown) and Agaricus bisporus (white); and three wild medicinal edible mushrooms Trametes versicolor, Ganoderma applanatum and Fomes fomentarius for total phenolic, total flavonoid and condensed tannins content. T...

2014
Mindaugas Liaudanskas Pranas Viškelis Raimondas Raudonis Darius Kviklys Norbertas Uselis Valdimaras Janulis

The aim of this study was to determine the composition and content of phenolic compounds in the ethanol extracts of apple leaves and to evaluate the antioxidant activity of these extracts. The total phenolic content was determined spectrophotometrically, as well as the total flavonoid content in the ethanol extracts of apple leaves and the antioxidant activity of these extracts, by the ABTS, DP...

2015
A. Kowalczyk M. Ruszkiewicz I. Biskup

The total phenolic content and antioxidant capacity of three apple ciders produced in Poland were examined. The total phenolic content was determined by the Folin-Ciocalteau method and results were expressed in gallic acid equivalents with range from 0.21±0.003 to 0.30±0.004 mg/ml and Trolox equivalents ranging 0.88±0.012 to 1.24±0.015 mg/ml. The antioxidant activity was estimated by two method...

Journal: :Revista iberoamericana de micologia 2012
Jesús Fernando Ayala-Zavala Brenda Adriana Silva-Espinoza Manuel Reynaldo Cruz-Valenzuela Mónica Alejandra Villegas-Ochoa Martín Esqueda Gustavo Adolfo González-Aguilar Yazaric Calderón-López

BACKGROUND Among the potential natural sources of bioactive compounds, those of the macroscopic fungi Phellinus spp. have been identified by previous researches. Phenolic compounds are among the major antioxidant and antimicrobial contributors due to their bioactive properties. AIMS The goal of this study was to determine the total phenolic and flavonoid contents, and its relation with the an...

Journal: :iranian journal of pharmaceutical sciences 0
reza tabaraki department of chemistry, faculty of science, ilam university, ilam, iran negar sadeghinejad department of chemistry, faculty of science, ilam university, ilam, iran

herbal water is referred to the liquid obtained from the distillation of medicinal plants. different parts of plants, such as flowers, fruits, leaves, seeds and roots have long been used to produce herbal waters. herbal waters are used as dietary supplements and alternative medicine and are commonly used for flavoring in baking. previous studies focused on the non-volatile constituents of herbs...

A Alinaghi B Nickavar M Kamalinejad

The aim of the study was to evaluate the antioxidant and free radical scavenging properties and to determine the phenolic content of the ethanol extract from five Mentha species [M. longifolia (L.) Huds., M. piperita L., M. pulegium L., M. rotundifolia (L.) Huds., and M. spicata L.]. The antioxidant activities of the extracts were investigated with two different methods, 2,2’-diphenyl-1-picrylh...

This study was conducted with the aim of investigating the effect of plant hormones (IAA and BAP) and methyl jasmonate elicitor on callogenesis potential of Teucrium polium leaf explants and the content of some phenolic compounds (total phenols, o-diphenols, phenolic acids, flavonoids, and flavones) and its antioxidant capacity. Leaf explants prepared from hydroponically-grown plants were cultu...

2014
Inmaculada Navarro-González Rocío González-Barrio Verónica García-Valverde Ana Belén Bautista-Ortín María Jesús Periago

Edible flowers are commonly used in human nutrition and their consumption has increased in recent years. The aim of this study was to ascertain the nutritional composition and the content and profile of phenolic compounds of three edible flowers, monks cress (Tropaeolum majus), marigold (Tagetes erecta) and paracress (Spilanthes oleracea), and to determine the relationship between the presence ...

2013
Jean Legault Karl Girard-Lalancette Dominic Dufour André Pichette

The bark of boreal forest conifers has been traditionally used by Native Americans to treat various ailments and diseases. Some of these diseases involve reactive oxygen species (ROS) that can be prevented by the consumption of antioxidants such as phenolic compounds that can be found in medicinal plants. In this study, ultrasonic assisted extraction has been performed under various solvent con...

Journal: :Chemical communications 2015
S Van den Bosch W Schutyser S-F Koelewijn T Renders C M Courtin B F Sels

Liquid reductive processing of birch wood in the presence of commercial Ru/C or Pd/C catalysts yields about 50% of a select set of phenolic monomers and a variety of phenolic di- and oligomers, next to a solid carbohydrate pulp. Changing the catalyst from Ru/C to Pd/C drastically increases the OH-content of the lignin-derived products, in particular for the phenolic monomers.

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