Results 141 to 150 of about 6,031 (179)
Biosynthesis of oat avenanthramide phytoalexins
Phytochemistry, 1999 Abstract The biosynthesis of oat phytoalexins, avenanthramides, was investigated by administering labeled putative precursors to oat leaf segments treated with the elicitor, penta-N-acetylchitopentaose. Among the compounds tested, oat leaf segments incorporated [ring-UL-14C]anthranilic acid, [2,3,4,5,6-2H] l -phenylalanine and [1,2-13C]p-coumaric ...
Atsushi Ishihara, Hajime Iwamura
exaly +5 more sources
Metabolism of avenanthramide phytoalexins in oats
Plant Journal, 2004 SummaryOat leaves produce phytoalexins, avenanthramides, in response to infection by pathogens or treatment with elicitors. The metabolism of avenanthramides was investigated using low molecular weight, partially deacetylated chitin as an elicitor. When oat leaf segments are floated on the elicitor solution, avenanthramides accumulate in the solution ...
Tetsuya Matsukawa +2 more
exaly +4 more sources
Analysis of avenanthramides in oat products and estimation of avenanthramide intake in humans
Food Chemistry, 2018 Avenanthramides are phenolic compounds found only in oats, and are of interest due to suggested bioactivities, including anti-inflammatory effects and induction of apoptosis. The objective of this work was to optimise a high performance liquid chromatography (HPLC) method for analysis of avenanthramides in food, and analyse the avenanthramide content ...
Angela A, Pridal +2 more
openaire +3 more sources
Evaluation of the bioactive properties of avenanthramide analogs produced in recombinant yeast
BioFactors, 2015 AbstractSaccharomyces cerevisiae has been proven to be a valuable tool for the expression of plant metabolic pathways. By engineering a S. cerevisiae strain with two plant genes (4cl‐2 from tobacco and hct from globe artichoke) we previously set up a system for the production of two novel phenolic compounds, N‐(E)‐p‐coumaroyl‐3‐hydroxyanthranilic acid (
Moglia, A +10 more
core +5 more sources
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Identification of a dehydrodimer of avenanthramide phytoalexin in oats
Tetrahedron, 2004A new compound (1) was found to accumulate when oat leaves were treated with elicitors. A reaction with peroxidase and avenanthramide B, an oat phytoalexin, in the presence of hydrogen peroxide resulted in the formation of 1. The chemical structure of 1 was determined to be a cyclic dehydrodimer of avenanthramide B based on spectroscopic analyses and ...
Atsushi Ishihara +2 more
exaly +2 more sources
Tentative Avenanthramide‐Modifying Enzyme in Oats
Cereal Chemistry, 2003 ABSTRACTA decrease of the concentration of the synthetic avenanthramide N‐(4′‐hydroxy‐(E)‐cinnamoyl)‐5‐hydroxyanthranilic acid in a buffered slurry of milled oat groats (Avena sativa L.) was temperature and pH‐dependent, with a maximum rate at 30°C and pH 9.
Susanne Bryngelsson +3 more
openaire +2 more sources
Journal of Agricultural and Food Chemistry, 2022 Oat containing rich β-glucan, polyphenols, flavonoids, saponins, alkaloids, and other substances shows good biological activities. Therefore, the present study aimed to uncover the possible mechanism and therapeutic effect of Avenanthramide C in ...
Zhichen Pu, Chaozhuang Shen
exaly +2 more sources
In Vitro Antioxidant Activity and Antigenotoxic Effects of Avenanthramides and Related Compounds
Journal of Agricultural and Food Chemistry, 2009 Avenanthramides are substituted N-cinnamoylanthranilic acids, with hydroxycinnamic acid and anthranilic acid moieties. These alkaloid phenols, which are unique to oats, may confer health benefits via antioxidant or other mechanisms. Synthetic avenanthramides, hydroxycinnamic acids, Tranilast, and ascorbic acid were evaluated for antioxidant activity ...
Alison M, Lee-Manion +5 more
core +4 more sources
Stability of Oat Avenanthramides
Cereal Chemistry, 2001ABSTRACTThe three main oat avenanthramides, N‐(4′‐hydroxy)‐(E)‐cinnamoyl‐5‐hydroxyanthranilic acid (Bp), N‐(4′‐hydroxy‐3′‐methoxy)‐(E)‐cinnamoyl‐5‐hydroxyanthranilic acid (Bf), and N‐(3′,4′‐dihydroxy)‐(E)‐cinnamoyl‐5‐hydroxyanthranilic acid (Bc), and their corresponding cinnamic acids, p‐coumaric (P), ferulic (F), and caffeic (C), were investigated for
Lena Häll Dimberg +3 more
openaire +1 more source