نتایج جستجو برای: coumaric acids

تعداد نتایج: 265803  

Journal: :Food research international 2015
Oludemi Taofiq Ricardo C Calhelha Sandrina Heleno Lillian Barros Anabela Martins Celestino Santos-Buelga Maria João R P Queiroz Isabel C F R Ferreira

In the present study, the ethanolic extracts of fourteen edible mushrooms were investigated for their anti-inflammatory potential in LPS (lipopolysaccharide) activated RAW 264.7 macrophages. Furthermore the extracts were chemically characterized in terms of phenolic acids and related compounds. The identified molecules (p-hydroxybenzoic, p-coumaric and cinnamic acids) and their glucuronated and...

2012
Somprasong Khaopha Thanaset Senawong Sanun Jogloy Aran Patanothai

A successful peanut breeding to obtain genotypes with greater phenolic content requires information on type and content of phenolic compounds in parental peanut genotypes. The aim of this study was to investigate the total phenolic contents and phenolic acid profiles of 15 Valencia-type peanut genotypes both in peanut testae and testa-removed kernels (cotyledons and embryonic axes). Total pheno...

Journal: :Molecules 2011
Ghulam Shabir Farooq Anwar Bushra Sultana Zafar M Khalid Muhammad Afzal Qaiser M Khan M Ashrafuzzaman

This paper describes the antioxidant and antimicrobial activities and phenolic components of different solvent (absolute methanol, absolute ethanol, absolute acetone, 80% methanol, 80% ethanol, 80% acetone and deionized water) extracts of leaves, flowers and bark of Gold Mohar [Delonix regia (Bojer ex Hook.) Raf.]. The extract yields from leaves, flowers and bark ranged from 10.19 to 36.24, 12....

Journal: :Catalysts 2022

Trans-cinnamic acid and p-coumaric are valuable intermediates in the synthesis of flavonoids widely employed food, flavor pharmaceutical industries. These products can be produced by deamination L-phenylalanine L-tyrosine catalyzed phenylalanine ammonia lyase or tyrosine lyase. Phenylalanine ammonia-lyase (PAL, EC 4.3.1.5) from Rhodotorula glutinis do not exhibit strong substrate specificity co...

2016
Thibaut Istasse Nicolas Jacquet Thomas Berchem Eric Haubruge Bach Kim Nguyen Aurore Richel

Honey polyphenols have been studied with the objective of relating honeys to their floral sources. Initially synthesized by plant, these polyphenols can be found in the plant's nectar, which are collected by bees, which convert the nectar into honey. Consequently, polyphenols constitute minor components of honey. The development of a solid-phase extraction method for honey polyphenols is presen...

2012
Piotr Duchnowicz Marlena Broncel Anna Podsędek Maria Koter-Michalak

OBJECTIVE Four polyphenols: ferulic acid and p-coumaric acid (hydroxycinnamic acids), quercetin (flavonol) and cyanidin 3-glucoside (anthocyanin) were selected, and their antioxidant properties and their influence on cholesterol concentration in hypercholesterolemic and normal erythrocytes were investigated. METHODS To determine the effect of phenolic compounds, we prospectively studied chole...

2018
Kamila Kasprzak Tomasz Oniszczuk Agnieszka Wójtowicz Monika Waksmundzka-Hajnos Marta Olech Renata Nowak Renata Polak Anna Oniszczuk

Prohealth food contains specific components which have positive influence on the health and well-being of the consumer. An important position among bioactive compounds occurs for polyphenols. Many results have indicated that an increased intake of phenolic compounds may reduce the risk of cardiovascular diseases and type 2 diabetes. The objective of the study was production of extruded corn sna...

2005
Devanand L. Luthria Marcial A. Pastor-Corrales

A high-performance liquid chromatography-diode array detection (DAD) procedure separating and quantifying 16 phenolic acids was used for determination of phenolic acids content in dry beans (Phaseolus vulgaris L.). Dry beans from 10 market classes and 15 varieties that are commonly consumed in the United States were screened for phenolic acids content. Systematic sequential hydrolysis of a mode...

Journal: :Acta poloniae pharmaceutica 2012
Sławomira Nowak Izabela Rychlińska

2D-TLC and RP-HPLC methods were applied to qualitatively determinate free phenolic acids and those liberated by acid and alkaline hydrolysis in the flowers and leaves of G. robusta and G. squarrosa. The presence of eleven phenolic acids, namely: caffeic, chlorogenic, p-coumaric, p-hydroxybenzoic, ferulic, gallic, protocatechuic, vanillic salicylic, p-hydroxyphenylacetic and ellagic acids was de...

2006
Romina Pedreschi Luis Cisneros-Zevallos

Qualitative and quantitative high performance liquid chromatography with diode array detection (HPLC-DAD) was performed to characterize the presence of phenolic compounds in Andean purple corn. Phenolic compounds were analyzed by separating them in two main fractions: a water fraction (WF) and an ethyl acetate fraction (EAF). The WF rich in anthocyanins revealed the presence of cyanidin-3-gluco...

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