Quinochalcones and Flavonoids from Fresh Florets in Different Cultivars of Carthamus tinctorius L.
スポンサーリンク
概要
- 論文の詳細を見る
The flavonoid constituents in fresh florets of the three distinctive cultivars of Carthamus tinctorius L. were purified and identified to investigate flavonoid biosynthesis in the petals. From the orange flower of cv. Kenba (K.), four new compounds, anhydrosafflor yellow B (1), two kaempferols, 9 and 13,and a quercetin, 17,were isolated, as well as the twelve known compounds, and their structures were determined by spectral data, chemical reactions, and molecular mechanics'calculations. From the yellow flower of cv. Ogon-hanagasa (O.), two flavonols and two quinochalcones, and from the white flower of cv. Shiro-bana (S.), three flavonols were isolated. These compounds were the same as those contained in cv. K. To compare the flavonoid constituents among the three cultivars, crude extracts were analyzed by a LC/PDA/MS system. In cv. K., six quinochalcones and eleven flavonols were identified. In cv. O., three quinochalcones and nine flavonols were identified, but the red pigment, carthamin (4), and its precursor, precarthamin (3), were not detected. In cv. S., four flavonols without a 6-hydroxyl group were identified. On the basis of a comparative study on the constituents among these three cultivars, a possible biosynthetic pathway to form quinochalcones via the intermediate, pentahydroxychalcone (19), is proposed.
- 2000-08-23
著者
-
Kazuma Kohei
Faculty Of Agriculture And Life Science Hirosaki University
-
Okuno Toshikatsu
Faculty of Agriculture, Hirosaki University
-
MATSUMOTO Takeshi
School of Health Sciences, Sapporo Medical University
-
Matsumoto T
Applied Biological Chemistry University Of Tokyo
-
TAKAHASHI Takashi
Faculty of Agriculture and Life science, Hirosaki University
-
SATO Katsura
Faculty of Agriculture and Life science, Hirosaki University
-
TAKEUCHI Hisatomo
Faculty of Agriculture and Life science, Hirosaki University
-
Sato Katsura
Faculty Of Agriculture And Life Science Hirosaki University
-
Takeuchi Hisatomo
Faculty Of Agriculture And Life Science Hirosaki University
-
Okuno T
Department Of Biochemistry And Biotechnology Faculty Of Agriculture And Life Science Hirosaki Univer
-
Okuno Toshikatsu
Faculty Of Agriculture And Life Science Hirosaki University
-
Matsumoto Takeshi
School Of Health Sciences Sapporo Medical University
-
Takahashi Takashi
Faculty Of Agriculture And Life Science Hirosaki University
-
Matsumoto Takeshi
School Of Agriculture Sciences Nagoya University
関連論文
- Enantioselective Synthesis of Four Isomers of 3-Hydroxy-4-Methyltetradecanoic Acid, the Constituent of Antifungal Cyclodepsipeptides W493 A and B
- Antifungal Cyclodepsipeptides, W493 A and B, from Fusarium sp. : Isolation and Structural Determination
- PA92 NOVEL PHYTOTOXINS FROM THE PATHOGENIC FUNGI ON APPLE
- Purification and Characterization of an Endopolygalacturonase from Physalospora piricola
- P-42 SYNTHETIC STUDIES OF OLIGOGALACTURONATE ANALOGUES AS MOLECULAR PROBES FOR endo-PG1
- β-Selective Glycosylation of 5-Thioglucopyranose Derivatives; Syntheses of β-(1→6) Linked 5'-Thioglucopyranosyl Disaccharides
- Characterization of an endopolygalacturonase Gene cppg1 from Phytopathogenic Fungus Chondrostereum purpureum
- Isolation, Characterization, and Sugar Chain Structure of EndoPG Ia, Ib, and Ic from Stereum purpureum
- Cloning and Sequence Analysis of cDNA Encoding Endopolygalacturonase I from Stereum purpureum
- Novel Exopolygalacturonases Produced by Alternaria mali
- Side Chain-Side Chain Interactions of Arginine with Tyrosine and Aspartic Acid in Arg/Gly/Tyr-Rich Domains within Plant Glycine-Rich RNA Binding Proteins
- Punctuated Equilibrium Behavior and Zipf's Law in the Stochastic Branching Process Model of Phylogeny
- Biological and Structural Properties of Cyclic Peptides Derived from the α-Amylase Inhibitor Tendamistat
- Quinochalcones and Flavonoids from Fresh Florets in Different Cultivars of Carthamus tinctorius L.
- Dihydroampullicin, a New Plant Growth Regulators Produced by the Ampulliferina-like Fungus sp. No.27
- Ampullicin and Isoampullicin, New Metabolites from an Ampulliferina-like Fungus sp. No.27(Organic Chemistry)
- Vaccination with an immunodominant peptide of bovine type II collagen induces an anti-TCR response, and modulates the onset and severity of collagen-induced arthritis
- Suppression of Collagen-Induced Arthritis in DBA/1J Mice by Preimmunization with House Dust Mite Extract
- Purification and Some Properties of Endo-1, 4-β-D-xylanase from a Fresh-water Mollusc, Pomacea insularus (de Ordigny)
- Comparison of Thermal and Guanidine Hydrochloride Denaturation Behaviors of Glucoamylase from the STA1 Gene of Saccharomyces cerevisiae var. diastaticus
- Improved Purification and Spectroscopic Properties of Squash Glutamate Decarboxylase
- Purification and Some Properties of an Endo-1,4-β-D-mannanase from a Marine Mollusc,Littorina brevicula
- Structure of Precarthamin, a Biosynthetic Precursor of Carthamin
- Effect of Laparotomy and/or Starvation on the Plasma Rapid-turnover Protein Level in Rats
- Response of Rapid-turnover Plasma Protein Levels in Injured Rats under Parenteral Nutrition
- Construction of Sandwich Enzyme Immunoassay for Rat Transthyretin Using Recombinant Antigen Approach, and Its Application
- Daily Changes of Nutritional Status in Partially Hepatectomized Rats Receiving Total Parenteral Nutrition(Food & Nutrition)
- Physical Properties of Glutamate Decarboxylase from Squash(Biological Chemistry)
- Purification and Some Properties of Endo-1,4-β-D-mannanase from Pseudomonas sp. PT-5(Biological Chemistry)
- Purification and Some Properties of Endo-1,3-β-D-xylanase from Pseudomonas sp. PT-5(Biological Chemistry)
- Purification and Properties of Glutamate Decarboxylase from Squash(Biological Chemistry)
- End Sequencing and Chromosomal in silico Mapping of BAC Clones Derived from an indica Rice Cultivar, Kasalath
- Cloning of a Gene Encoding Hydroxyquinol 1,2-Dioxygenase that Catalyzes Both Intradiol and Extradiol Ring Cleavage of Catechol
- Total Synthesis of Both Enantiomers of Dictyochromenol and their (Z)-Isomers(Organic Chemistry)
- Purification, characterization, and gene cloning of cis,cis-muconate cycloisomerase from benzamide-assimilating Arthrobacter sp. BA-5-17
- P-48 Isolation, structure determination, and biological properties of cyclothiazomycins B1 and B2
- A New Lipobetaine from the Red Alga Neodilsea yendoana
- Molecular Spectrum of Somaclonal Variation in Regenerated Rice Revealed by Whole-Genome Sequencing
- DaizuBase, in integrated soybean genome database including BAC-based physical maps
- Relationship between Current Forest Operations and Provision of Roads in Private Forests
- Causes and Remedies for Green Discoloration of Processed Garlic Puree : Effects of Storage Conditions on Ingredient Bulbs
- Isolation and Identification of Causal Constituents of Green Discoloration in Garlic Puree
- Isolation and Properties of TwoAntifungal Substances from Fusarium solani
- (-)-Sclerosporin, an Antifungal Metabolite of Diplocarpon mail
- Three Metabolites Produced by Valsa sp.