نتایج جستجو برای: flavonols

تعداد نتایج: 1622  

Journal: :Biochemical systematics and ecology 2000
Fico R Bilia A Morelli Tomè

Flavonoid composition during the ontogenetic cycle was examined in Pyracantha coccinea. The flavonoid profiles of plants at different ages showed marked differences in aerial and hypogeal parts. In the vegetative phase there are flavonoids (flavanones, flavones, and flavonols) only in the aerial parts and they appear gradually during the plant life. These secondary metabolites are detectable in...

Journal: :Chemical communications 2011
G N Manjunatha Reddy Stefano Caldarelli

The spectroscopic determination of phenolic molecules by means of multiple-quantum (MQ) NMR is demonstrated. Several classes of molecules (simple phenols, flavonols, secoiridoids and lignans) were unambiguously characterized in one pot analysis in an extract of extra virgin olive oil (EVOO).

2017
Matthew L. Tomlinson Eugenio Butelli Cathie Martin Simon R. Carding

Flavonoids are a diverse group of plant secondary metabolites, known to reduce inflammatory bowel disease symptoms. How they achieve this is largely unknown. Our study focuses on the gut epithelium as it receives high topological doses of dietary constituents, maintains gut homeostasis, and orchestrates gut immunity. Dysregulation leads to chronic gut inflammation, via dendritic cell (DC)-drive...

2016
Katharina Nimptsch Xuehong Zhang Aedín Cassidy Mingyang Song Éilis J O’Reilly Jennifer H Lin Tobias Pischon Eric B Rimm Walter C Willett Charles S Fuchs Shuji Ogino Andrew T Chan Edward L Giovannucci Kana Wu

BACKGROUND Flavonoids inhibit the growth of colon cancer cells in vitro. In a secondary analysis of a randomized controlled trial, the Polyp Prevention Trial, a higher intake of one subclass, flavonols, was statistically significantly associated with a reduced risk of recurrent advanced adenoma. Most previous prospective studies on colorectal cancer evaluated only a limited number of flavonoid ...

2009
Yoshimura Shin Kawano Kentaro Matsumura Ryusuke Sugihara Narumi Furuno Koji

N-acetyl 5-aminosalicylic acid (5-AcASA) that was intracellularly formed from 5-aminosalicylic acid (5-ASA) at 200 microM was discharged 5.3, 7.1, and 8.1-fold higher into the apical site than into the basolateral site during 1, 2, and 4-hour incubations, respectively, in Caco-2 cells grown in Transwells. The addition of flavonols (100 microM) such as fisetin and quercetin with 5-ASA remarkably...

2012
Ruohe Yin Burkhard Messner Theresa Faus-Kessler Thomas Hoffmann Wilfried Schwab Mohammad-Reza Hajirezaei Veronica von Saint Paul Werner Heller Anton R. Schäffner

Flavonols, phenylalanine-derived secondary metabolites, have protective and regulatory functions in plants. In Arabidopsis thaliana, they are consecutively glycosylated at their 3-OH and 7-OH groups. UGT78D1 and UGT78D2 are the major flavonol 3-O-glycosyltransferases in Arabidopsis leaves. The ugt78d1 ugt78d2 double mutant, which was strongly compromised in the initial 3-O-glycosylation, showed...

فرجادی, ملیحه, نورسته نیا, آکبر,

In this study, water stress was applied by polyethylene glycol at a concentration of 20 perecentage. To improve the resistance of the plants, the samples were treated by potassium nitrate at concentrations 5, 10, and 15 mM within 9 days. Changes in proline, total protein, photosynthetic pigments, carotene, anthocyanin, malondialdehyde, phenols, flavonols, flavonoids, soluble sugars and potassiu...

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