Eucommia bark,Duzhong and its Applicable Uses.

Contents

• Basic Botanical Data of Eucommia Bark.
• What is eucommia bark? What is it used for?.
• Eucommia Bark Varieties and Grading.
• Phytochemicals and Constituents of Eucommia Bark.
• Pharmacology:Eucommia Bark.
• Eucommia Bark Indications and Combinations.
• Primary Combinations of Eucommia Bark.
• Eucommia Bark Dosage and Administration.
• Scientific Data and Mechanism:Eucommia Bark Hypotensive Effects.
• Research update:Eucommia bark.

Phytochemicals and Constituents of Eucommia Bark.:

Main Constituents: Aucubin,C15H22O9;Genipin,C11H14O5;Pinoresinol diglucoside,C32H42O16-4H2O,0.55%;Chlorogenic acid,C16H18O9,1.43%~15.23%,etc.

 Constituents: Gutta-Percha (Balata); Lignans; Lignon glycosides; Syringaresinols; Olivils; Medioresinols; Coniferol alcohol; Ridoids; Eucommiol; Eucommioside; Genipin; Deoxyeucommiol; Geniposide; Geniposidic acid; Aucubin; Ajugoside; Reptoside; Eucommioside; Asperuloside; Epieucommiol; Phenols; Catechol; Vanillic acid; Caffeic acid; Chlorogenic acid; Methyl chlorogenate; Eugenoside; Coniferin; Ulmoprenol; Kaempferol; Tartaric acid; Galactitol; Triacontanol Nonacosane; Geniposidic acid; b-sitosterol; Daucosterol; Straight Betulin; Betulinic acid; Ursolic acid; Lysine; Tryptophane; Methionine; Threonine; Valine; Leucine; Isoleucine; Glutamic acid; Cystisine; Histidine; Arginine; Chaintriterpenoid ethanol; 3-hydroxyphenylalanine; 3,4-dihydroxyphenylalanine.
 

 Phytochemicals in groups:

 1.1.[gutta-percha(C5H8)n]:Gutta-Percha or Balata:the same component as (C5H8)n,very useful in industry.
 1.2.lignans:matairesinol;Medioresinol.
 1.3.Iridoids:eucommiol;eucommioside;genipin;olivil;ulmoprenol;Geniposide;Geniposidic acid;aucubin;Asperuloside;Asperul acid,etc.
 1.4.Polyphenols:1,2-Dihydroxybenzene(Pyrocatechol);Aromatic vanillic acis;Caffeic acid;Chlorogenic acid;Eleutheroside B(Syringin;C17H24O9);Pinopsida.
 1.5.Terpenes:beta-sitosterol;daucosterol and Triterpenoids(betulin ;betulin acid;ursolic acid).
 1.6.Amino Acid and Minerals:Serine;Glutamic Acid;Glycin;Arginine and other 17kinds of amino acids, 15 kinds of minerals.
 1.7.Other content:l-octacosanol;Nonacosane;1-Triacontanol;Alkaloids;Poysaccharides;quercetin and citrusilin B,etc.
 1.8.Inorganic Chemicals:Cu, Zn, Ge, Se.
 

 Other Phytochemicals:

 Eucommiol;eucommioside;eucommioside-I;eucommioside-II;1-deoxyeucommiol;geniposide,0.12%~0.39%;geniposidic acid;harpagideacetate;ajugoside;reptoside;ulmoside;asperuloside;asperulosidic acid;deacetyl asperulosidic acid;(+)-pinoresinol O-Beta-D-glucopyranoside;(+)-1-hydroxypinoresinol 4',4"-di-O-beta-D-glucopoyranoside;(+)-1-hydroxypinoresinol 4'-O-beta-D-glucopyranoside;(+)-1-hydroxypinoresinol-4"-O-beta-D-glucopyranoside;(+)-epipinoresinol;liriodendrin,(+)-syringaresinol di-O-beta-D-glucopyranoside;(+)-syringa resinol O-beta-D-glucopyranoside;syringylglycerol-beta-syringaresinol ether-4",4"-di-O-beta-D-glucopyranoside;(+)-syringaresinol monoglucoside;(-)-olivil-4',4"-di-O-beta-D-glucopyranoside;(-)-olivil;(+)-cyclo-olivil;(-)-olivil-4'-O-beta-D-glucopyranoside;(-)-olivil 4',4"-di-O-beta-D-glucopyranoside;(+)-medioresinol di-O-beta-D-glucopyranoside;eucommin A(+)-medioresinol 4'-O-beta-D-glucopyranoside;(+)-medioresinol monoglucoside;hedyotol C-4",4"'-di-O-beta-D-glucopyranoside;dehydrodiconiferyl alcohol-4,gamma'-di-O-beta-D-glucopyranoside;erytho-dihydroxydehy-drodiconiferyl alcohol;threo-dihydroxydehydrodiconiferyl alcohol;caffeic acid;tartaric acid;betulinic acid;ursolic acid;vanillic acid;methyl chlorogenate;catechol;3-(3-hydroxyphenyl)propionic acid;3-(3,4-dihydroxyphenyl) propionic acid;coniferin;syringin;(+-)-erythro guaiacylglycerol;(+-)-threo-guaiacylglycerol;5-(hydroxymethyl)-alpha-furaldehyde;kaempferol;ulmoprenol;koaburaside;daucosterol;ulmoprenol;n-nonacosane;n-triacontanol;betalin;beta-sitosterol;n-triacontane;quercetin;citrusin B;loliolide,etc.

 Phytochemicals in leaf:

 Besides the bark of eucommia is the rare medicinal herb, Eucommia ulmoides' leaf contains lactones, coumarins, alkaloids, polysaccharide, reducing sugar, organic acid, volatile oils, fats, rasin, proteome, amino acid, and Jidu colloid, etc.

Reference:

• 1.Eucommia bark,Duzhong and its Applicable Uses.

This article written and edited via herbalist of MDidea Extracts Professional. They run a range of online descriptions about this herb,including general information related and summarized updating discoveries from findings of professional scientisits this field related.Describe style aimed to form a useful detecting literature space where the intertwined threshold and related questions raise out and visualize themselves.

♣ last edit date:14th,Oct.2010.