Results 121 to 130 of about 616 (156)
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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
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Biosynthesis of oat avenanthramide phytoalexins
Phytochemistry, 1999Abstract 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 +2 more
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The inhibition of intestinal glucose absorption by oat‐derived avenanthramides
Journal of Food Biochemistry, 2022Avenanthramides are phenolic compounds unique to oats and may contribute to health-promoting properties associated with oat consumption. This study used Xenopus laevis oocytes expressing the glucose transporters, glucose transporter 2 (GLUT2) or sodium-glucose transport protein 1 (SGLT1) and human Caco-2 cells models to investigate the effect of oat ...
Haonan Zhouyao +5 more
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Comprehensive Study of the Effect of Oat Grain Germination on the Content of Avenanthramides
Food Chemistry, 2023The chemical profile and the levels of AVNs in oat varieties after germination have been examinated. In the present study, 12 distinct oat varieties were germinated for 0-192 h and a total of 28 AVNs and 3 AVN-hexosides were determined in these samples. Among them, three novel AVNs were synthesized (AVN 1a, AVN 2a, and AVN 2ad), characterized using NMR
Michal Jágr +9 more
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New Dimeric Compounds of Avenanthramide Phytoalexin in Oats
The Journal of Organic Chemistry, 2007Avenanthramide B is an oat phytoalexin produced in response to pathogen attack and elicitation. We found the formation of new dimers (1-5) of avenanthramide B in elicited oat leaves. The dimers were synthesized by a reaction of peroxidase and avenanthramide B in the presence of hydrogen peroxide.
Yozo, Okazaki +4 more
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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 ...
Yozo Okazaki +3 more
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Tentative Avenanthramide‐Modifying Enzyme in Oats
Cereal Chemistry, 2003ABSTRACTA 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
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Microbial‐derived metabolites of oat avenanthramides
The FASEB Journal, 2016Oat is a multifunctional crop nutritionally superior to many other unfortified cereals. It is commonly consumed as whole grains and known to provide healthy nutrients to humans. Oats contain a unique type of compounds, avenanthramides (AVAs), which are a group of substituted N ...
Aaron Yerke, Pei Wang, Shengmin Sang
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The Pharmacology of Avenanthramides: Polyphenols
2018Ilias Marmouzi, Shahira M. Ezzat
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