X-Ray Diffraction Study of Glucomannans and Their Acetates(Analytical Chemistry)
スポンサーリンク
概要
- 論文の詳細を見る
Crystalline polymorphs of four glucomannans with a different mannose/glucose ratio from 1.5 to 4.0 and their acetyl derivatives was studied by X-ray diffraction measurements. The glucomannans showed an amorphous or similar crystal structure (Mannan I or Mannan II polymorph) of β-1,4-D-mannan depending on their mannose content, indicating the occurrence of isomorphous replacement of mannose by glucose during glucomannan crystallization. When these glucomannans were annealed, however, Konjac glucomannan (mannose/glucose ratio = 1.6) showed a different powder pattern from both Mannans I and II. The fiber pattern of the annealed Konjac glucomannans, Higanbana glucomannan with a high mannose content (mannose/glucose = 4.0) showed a similar diffraction pattern to that of β-1,4-D-mannan triacetate, indicating that the isomorphous replacement also occurred in a different crystalline form from that of mannan triacetate. The fiber diffraction pattern of Konjac glucomannan acetate suggested that it took a three-fold helix.
- 1991-08-23
著者
-
Yui Toshifumi
Department Of Industrial Chemistry Miyazaki University
-
Yui Toshifumi
Department Of Applied Chemistry Faculty Of Engineering Miyazaki University
-
Ogawa Kozo
Research Institute For Advanced Science And Technology (riast)
-
Mizuno Takashi
Department Of Applied Biological Chemistry Shizuoka University
-
Mizuno Takashi
Department Of Agricultural Chemistry Shizuoka University
-
Mizuno Takashi
Department Of Agricultural Chemistry Faculty Of Agriculture Shizuoka University
関連論文
- Altechromones A and B, New Plant Growth Regulators Produces by the Fungus, Alternaria sp.
- X-Ray Diffraction Study of Glucomannans and Their Acetates(Analytical Chemistry)
- Characterization of the adsorption of Xyloglucan to Cellulose : STRUCTURE AND FUNCTION OF CELLS
- Antitumor Active Protein-containing Glycans from the Chinese Mushroom Songshan Lingzhi, Ganoderma tsugae Mycelium
- Fourth 3D Structure of the Chitosan Molecule : Conformation of Chitosan in Its Salts with Medical Organic Acids Having a Phenyl Group(Analytical Chemistry)
- Crystalline Behavior of Chitosan Organic Acid Salts(Analytical Chemistry)
- Dependence of the Mechanical Properties of a Pullulan Film on the Preparation Temperature(Analytical Chemistry)
- A Novel Fatty Acid from the Mushroom Heridum erinaceum(Organic Chemistry)
- Dependence of Complex Formation of(1→3)-β-D-Glucan with Congo Red on Temperature in Alkaline Solutions
- 計算化学手段による糖鎖の分子モデリング
- Antitumor Activity and Chemical Modification of Polysaccharides from Niohshimeji Mushroom, Tricholma giganteum
- Antitumor-active Heteroglycans from Niohshimeji Mushroom, Tricholoma giganteum
- Crystalline Features of Chitosan-L- and D-Lactic Acid Salts
- Antitumor Polysaccharides from a Chinese Mushroom, "Yuhuangmo," the Fruiting Body of Pleurotus citrinopileatus
- Chain Conformation of Deacetylated Beijeran Calcium Salt
- Crystalline Features of Streptococcal (1→3)-α-D-Glucans of Human Saliva
- Conformation of Poly[(1→3)-α-D-Maltotriose], a Major Part of the Elsinan Molecule, Studied by X-Ray Diffraction Coupled with Conformational Analysis
- Antitumor Active Fucoidan from the Brown Seaweed, Umitoranoo (Sargassum thunbergii)
- Changes in the amounts of two kinds of reserve glucose-containing polysaccharides during germination of the Easter lily bulb
- Conformation of (1→3)-α-D-Glucan Tribenzoate
- Fractionation and Characterization of Antitumor Polysaccharides from Maitake, Grifola frondosa(Biological Chemistry)
- Conformation of an Arabinoxylan Isolated from the Rice Endosperm Cell Wall by X-Ray Diffraction and a Conformational Analysis
- Effect of Explosion on the Crystalline Polymorphism of Chitin and Chitosan
- Dependence on the Preparation Procedure of the Polymorphism and Crystallinity of Chitosan Membranes
- Conformational Behavior of Chitosan in the Acetate Salt : An X-Ray Study
- Macromolecular Complexes of Xyloglucan and Cellulose Obtained by Annealing : STRUCTURE AND FUNCTION OF CELLS
- Viscometry of Curdlan, a Linear (1→3)-β-D-Glucan, in DMSO or Alkaline Solutions
- Crystallinity of Partially N-Acetylated Chitosans
- Molecular Modeling Study of Highly Branching (1→3)-α-D-Glucan, a Model Polysaccharide for Cariogenic Glucan, Using the N-H Mapping Method
- Characteristics of a Conical Piezocomposite Transducer with an Apodized Vibration Area
- Effect of Heating an Aqueous Suspension of Chitosan on the Crystallinity and Polymorphs(Analytical Chemistry)
- Antitumor Activity of Water-Soluble β-D-Glucan Elaborated by Ganoderm applanatum
- Steric effects on carbon-13 chemical shifts in 3-aryl-1,2,3-oxathiazolidine 2-oxides.