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'Hydroxycinnamic Acid Conjugates' in keywords
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1988 (1)
1981 (1)
1Author    Dieter Strack, Gesine Sachs, Axel Römer, Rolf WiRequires cookie*
 Title    Ferulic Acid-Sucrose Esters from Immature Anthers of Tulipa cv. "Apeldoorn"  
 Abstract    Two ferulic acid conjugates have been isolated from the extract of immature anthers of Tulipa cv. "Apeldoorn" and their structures elucidated using chromatography, electron impact mass spectrometry, and NMR spectroscopy. These two conjugates are 6,3'-diferuloylsucrose and 6,3',4'-triferuloylsucrose. High performance liquid chromatographic analysis of the extract showed that these esters are transient major constituents of the phenylpropanoid pattern of the immature anthers and are present in the ratio of 1:2. Previous investigations showed that these components are accumulated in the loculus. 
  Reference    Z. Naturforsch. 36c, 721—723 (1981); received April 30 1981 
  Published    1981 
  Keywords    Tulipa, Liliaceae, Hydroxycinnamic Acid Conjugates, Ferulic Acid Esters, Sucrose 
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 TEI-XML for    default:Reihe_C/36/ZNC-1981-36c-0721.pdf 
 Identifier    ZNC-1981-36c-0721 
 Volume    36 
2Author    Dieter Strack, Wiltrud Gross, Jürgen Heilemann, Harald Keller, Sabine OhmRequires cookie*
 Title    Enzymic Synthesis of Hydroxycinnamic Acid Esters of Glucaric Acid and Hydroaromatic Acids from the Respective l-O-Hydroxycinnamoylglucoside and Hydroxycinnamoyl-Coenzyme A Thioester as Acyldonors with a Protein Preparation from Cestrum elegáns Leaves  
 Abstract    Hydroxycinnamoyltransferase activities which catalyze the formation of O-hydroxycinnamoyl-(p-coumaroyl-, feruloyl-, and sinapoyl-)-glucaric acids via the corresponding 1-O-hydroxycin-namoyl-ß-glucoses, and 0-(p-coumaroyl)-quinic acid and 0-(p-coumaroyl)-shikimic acid both via p-coumaroyl-CoA thioester have been isolated from leaves of Cestrum elegáns D. F. L. v. Schlechtendal. The enzymic activities involved could be classified as 1-O-hydroxycinnamoyl-ß-glucose : glucaric acid hydroxycinnamoyltransferase (EC 2.3.1.-) and /?-coumaroyl-CoA : quinic acid/shikimic acid hydroxycinnamoyltransferase (EC 2.3.1. —). This is the first time that both the O-glucoside-and the S-CoA-dependent activities in phenolic acid-ester formation were found to be present in the same plant. 
  Reference    Z. Naturforsch. 43c, 32—36 (1988); received August 25 1987 
  Published    1988 
  Keywords    Acyltransferase, Hydroxycinnamic Acid Conjugates, Glucaric Acid Ester, Quinic Acid Ester, Shikimic Acid Ester 
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 TEI-XML for    default:Reihe_C/43/ZNC-1988-43c-0032.pdf 
 Identifier    ZNC-1988-43c-0032 
 Volume    43