نتایج جستجو برای: coumaric acids

تعداد نتایج: 265803  

Journal: :Acta biochimica Polonica 2009
Maria Zych Joanna Folwarczna Henryk I Trzeciak

Natural phenolic acids are commonly present in plants consumed in the diet. Recently we have observed that different natural phenolic acids exert differential effects on the body mass gain in ovariectomized and non-ovariectomized female rats. The aim of the present study was to investigate the effects of ferulic, caffeic, p-coumaric and chlorogenic acids on serum estradiol and total cholesterol...

Journal: :Journal of applied microbiology 2003
F M Campos J A Couto T A Hogg

AIMS To determine the effect of several wine-associated, phenolic acids on the growth and viability of strains of Oenococcus oeni and Lactobacillus hilgardii. METHODS AND RESULTS Growth was monitored in ethanol-containing medium supplemented with varying concentrations of hydroxybenzoic acids (p-hydroxybenzoic, protocatechuic, gallic, vanillic and syringic acids) and hydroxycinnamic acids (p-...

Journal: :iranian journal of basic medical sciences 0
mustafa guven department of neurosurgery, faculty of medicine, çanakkale onsekiz mart university, çanakkale, turkey adem bozkurt aras department of neurosurgery, faculty of medicine, çanakkale onsekiz mart university, çanakkale, turkey tarik akman department of neurosurgery, faculty of medicine, çanakkale onsekiz mart university, çanakkale, turkey halil murat sen department of neurosurgery, faculty of medicine, çanakkale onsekiz mart university, çanakkale, turkey adile ozkan department of neurosurgery, faculty of medicine, çanakkale onsekiz mart university, çanakkale, turkey osman salis department of medical biochemistry, faculty of medicine, ondokuz mayıs university, samsun, turkey

objective(s): stroke poses a crucial risk for mortality and morbidity. our study aimed to investigate the effect of p-coumaric acid on focal cerebral ischemia in rats. material and methods: rats were randomly divided into four groups, namely group i (control rats), group ii (ischemia rats), group iii (6 hr ischemia + p-coumaric acid rats) and group iv (24 hr ischemia + p-coumaric acid rats). ce...

Journal: :Journal of agricultural and food chemistry 2006
José C del Río Ana Gutiérrez

The chemical composition of leaf fibers of abaca (Musa textilis), which are commonly used for high-quality paper pulp production, was thoroughly studied. The results revealed that the lignin content was 13.2% of the total fiber. The analysis of abaca fibers by pyrolysis coupled to gas chromatography-mass spectrometry (Py-GC/MS) released predominantly compounds arising from lignin and p-hydroxyc...

Journal: :Applied and environmental microbiology 2000
L Barthelmebs C Divies J F Cavin

Lactobacillus plantarum NC8 contains a pdc gene coding for p-coumaric acid decarboxylase activity (PDC). A food grade mutant, designated LPD1, in which the chromosomal pdc gene was replaced with the deleted pdc gene copy, was obtained by a two-step homologous recombination process using an unstable replicative vector. The LPD1 mutant strain remained able to weakly metabolize p-coumaric and feru...

Journal: :iranian journal of pharmaceutical research 0
shr alavi n yassa r hajiaghaee m matin yekta n rezaei ashtiani y ajani

from methanolic extract of aerial parts of peucedanum ruthenicum m. bieb (apiaceae) collected from mazandaran province of iran, four flavonoids namely isorhamnetin 3-0-rutinoside 1, rutin 2, quercetin 3, morin 4 and two phenolic acids namely caffeic acid 5 and p-coumaric acid 6 have been isolated by paper chromatography (pc) and crystallization. their structures were elucidated by ms, 1h, 13c n...

A hadjiakhondi M Matin Yekta N Rezaei Ashtiani N Yassa R Hajiaghaee SHR Alavi Y Ajani

From methanolic extract of aerial parts of Peucedanum ruthenicum M. Bieb (Apiaceae) collected from Mazandaran province of Iran, four flavonoids namely Isorhamnetin 3-0-rutinoside 1, rutin 2, quercetin 3, morin 4 and two phenolic acids namely caffeic acid 5 and p-coumaric acid 6 have been isolated by Paper Chromatography (PC) and crystallization. Their structures were elucidated by MS, 1H, 13C N...

2016
Shishir Tandon

Screening of phenolic constituents in leaves of Cedrela serrata, Toona ciliata, Azadirachta indica and Melia azedarach was done by reversed phase high performance liquid chromatography (RP-HPLC). The phenolic compounds were identified by comparison with authentic standards. The phenolic acids identified in all plants leaves extract were gallic acid, protocatechuic acid, p-hydroxy benzoic acid, ...

2017
Elizabeth A. Burritt A. S. Bittner J. C. Street M. J. Anderson E. A. BURRITT

Maturing reed canarygrass, Russian wildrye, and smooth bromegrass cell walls were analyzed for lignin, phenolic acids, and neutral sugars. Linear correlation between in vitro dry matter digestibility and the p-coumaric acid content was .86 . The correlation between in vitro dry matter digestibility and ratio of p-coumaric to ferulic acid was .84 . Samples with high percentages of lignin also co...

Journal: :Metabolic engineering 2015
Angelica Rodriguez Kanchana R Kildegaard Mingji Li Irina Borodina Jens Nielsen

Aromatic amino acids are precursors of numerous plant secondary metabolites with diverse biological functions. Many of these secondary metabolites are already being used as active pharmaceutical or nutraceutical ingredients, and there are numerous exploratory studies of other compounds with promising applications. p-Coumaric acid is derived from aromatic amino acids and, besides being a valuabl...

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