Epicuticular Leaf Waxes of Tilia tomentosa Moench. and Tilia × europaea L., Tiliaceae

1988 ◽  
Vol 43 (3-4) ◽  
pp. 173-176 ◽  
Author(s):  
Paul-Gerhard Gülz ◽  
Edith Müller ◽  
Brigitte Moog
Keyword(s):  
Fatty Acids ◽  
Acetic Acid ◽  
Homologous Series ◽  
Wax Esters ◽  
Long Chain Fatty Acids ◽  
Primary Alcohols ◽  
Leaf Wax ◽  
Tilia Tomentosa ◽  
Very High ◽  
Long Chain

Quantity and composition of epicuticular leaf wax of Tilia tomentosa Moench. and T. × europaea L. were examined and showed similar wax compositions. The waxes of these two Tilia species contained homologous series of n-alkanes, wax esters, aldehydes, acetates, primary alcohols and fatty acids. In addition to these common epicuticular wax constituents, the triterpenol β-amyrin was found free as well as esterified with long chain fatty acids and in very high amounts with acetic acid in both Tilia species.

Epicuticular Leaf Wax of Euphorbia dendroides L., Euphorbiaceae

1987 ◽  
Vol 42 (3) ◽  
pp. 191-196 ◽  
Author(s):  
Paul-Gerhard Gülz ◽  
Herbert Hemmers ◽  
Jutta Bodden ◽  
Franz-Josef Marner
Keyword(s):  
Fatty Acids ◽  
Benzoic Acid ◽  
Epicuticular Wax ◽  
Wax Esters ◽  
Long Chain Fatty Acids ◽  
Primary Alcohols ◽  
Leaf Wax ◽  
Acid Esters ◽  
Long Chain ◽  
Chain Fatty Acids

Quantity and composition of epicuticular leaf wax of Euphorbia dendroides L. was examined. The wax contained rt-alkanes, wax esters, aldehydes, fatty acids and primary alcohols. In addition to these common epicuticular wax constituents several triterpenoids and benzoic acid esters were found. The triterpenols β-amyrin and lupeol occurred free as well as esterified with long chain fatty acids. The ketones Δ 12-oleanen-3-one and lupen-3-one have also been identified.

Epicuticular Leaf Wax of Cistus albanicus, Cistaceae

1987 ◽  
Vol 42 (1-2) ◽  
pp. 157-158 ◽  
Author(s):  
Thomas Vogt ◽  
Paul-Gerhard Gülz
Keyword(s):  
Fatty Acids ◽  
Homologous Series ◽  
Epicuticular Wax ◽  
Wax Esters ◽  
Secondary Alcohols ◽  
Long Chain Fatty Acids ◽  
Leaf Wax ◽  
Alcohol Fraction ◽  
Long Chain ◽  
Chain Fatty Acids

The epicuticular wax of Cistus albanicus was investigated. Homologous series of alkanes, wax esters, alcohols and long chain fatty acids were identified. The alcohol fraction consisted of primary and most probably of secondary alcohols.

Epicuticular Waxes from Leaves of Maple (Acer pseudoplatanus L.)

1990 ◽  
Vol 45 (6) ◽  
pp. 599-601 ◽  
Author(s):  
R. B. N. Prasad ◽  
Paul-Gerhard Gülz
Keyword(s):  
Fatty Acids ◽  
Wax Esters ◽  
Acer Pseudoplatanus ◽  
Long Chain Fatty Acids ◽  
Epicuticular Waxes ◽  
Primary Alcohols ◽  
Free Alcohol ◽  
Long Chain ◽  
Chain Fatty Acids

Abstract The epicuticular waxes from the leaves of maples (Acer pseudoplatanus L.) contained hydrocarbons (6.9%), wax esters (5.5%), aldehydes (38.1%), primary alcohols (10.2%) and fatty acids (17.1%). In addition to these common wax lipids, benzyl acyl esters (2.1%) and triterpenoids were also present. β-Sitosterol, β-amyrin and 24-methylene-cycloartenol were found in the form of acetates (14.4%). β-Amyrin was also present as free alcohol (4.9%) and esterified with long chain fatty acids (~ 0.7%).

Die Xanthophyllester der Sonnenblume

1968 ◽  
Vol 23 (5) ◽  
pp. 733-735 ◽  
Author(s):  
Kurt Egger
Keyword(s):  
Fatty Acids ◽  
Acetic Acid ◽  
Fatty Acid ◽  
Helianthus Annuus ◽  
Saturated Fatty Acids ◽  
Fatty Acid Esters ◽  
Long Chain Fatty Acids ◽  
Helianthus Annuus L ◽  
Acid Esters ◽  
Long Chain

The fatty acid esters of Xanthophylls in the flowers of Helianthus annuus L. have been investigated. The pigments taraxanthin = luteinepoxid, lutein, violaxanthin and kryptoxanthin are combined with the saturated fatty acids C18 (stearic-), C16 (palmitic-), C14 (myristic-), C12 (lauric-) and acetic acid. Acetic acid derivatives seldom occur in the field of carotenoids: fucoxanthin and vaucheriaxanthin7 are the only examples. The acetylation prefers the 3-OH of lutein and the hydroxyls near the epoxygroups. The long chain fatty acids are mainly found in the allylic position. No detectable amounts of furanoidic epoxides are present.

Epicuticular wax of euphorbia aphylla brouss. ex. willd., euphorbiaceae

1988 ◽  
Vol 43 (1-2) ◽  
pp. 19-23 ◽  
Author(s):  
Paul-Gerhard Gülz ◽  
Jutta Bodden ◽  
Edith Müller ◽  
Franz-Josef Marner
Keyword(s):  
Fatty Acids ◽  
Acetic Acid ◽  
Homologous Series ◽  
Epicuticular Wax ◽  
Wax Esters ◽  
The Common ◽  
Lipid Components

Quantity and composition of epicuticular wax of Euphorbia aphylla were examined. The wax contained the common lipid components n-alkanes, wax esters, pr. alcohols, fatty acids and in traces aldehydes and acetates all occurring in homologous series. Additionally, several triterpenols such as β-amyrin, α-amyrin, lupeol and simiarenol were found. With the exception of simiarenol these triterpenols occurred free as well as esterified with acetic acid and fatty acids. The ketones, oleanen-3-one, ursen-3-one and lupen-3-one have also been identified

Postprandial Activation of Coagulant Factor VII by Long-chain Dietary Fatty Acids

1996 ◽  
Vol 76 (03) ◽  
pp. 369-371 ◽  
Author(s):  
T A B Sanders ◽  
G J Miller ◽  
Tamara de Grassi ◽  
Najat Yahia
Keyword(s):  
Fatty Acids ◽  
Dietary Fatty Acids ◽  
Factor Vii ◽  
Fat Intake ◽  
Long Chain Fatty Acids ◽  
Postprandial Lipaemia ◽  
Increased Risk ◽  
Coagulant Activity ◽  
Long Chain Triglycerides ◽  
Long Chain

SummaryFactor VII coagulant activity (FVIIc) is associated with an increased risk of fatal ischaemic heart disease (IHD). Several reports have suggested that dietary fat intake or hypertriglyceridaemia are associated with elevated levels of FVII. This study demonstrates that an intake of long-chain fatty acids sufficient to induce postprandial lipaemia in healthy subjects leads to a substantial elevation in both FVIIc and the concentration of FVII circulating in the activated form. Such an increase in FVIIc could not be induced by medium-chain triglycerides. These results suggest that the consumption of a sufficient amount of long-chain triglycerides to induce postprandial lipaemia induces the activation of FVII.

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