Interaction between trehalose and alkaline-earth metal ions
| Autor: | Minoru Sakurai, Masashi Kurimoto, Kazuyuki Oku, Shigeharu Fukuda, Yoshio Tujisaka, Michio Kubota, Mayumi Kurose |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2005 |
| Předmět: |
Chlorophyll
Meat Potassium Compounds Swine Metal ions in aqueous solution Inorganic chemistry Carbohydrates Magnesium Chloride Molecular Conformation Applied Microbiology and Biotechnology Biochemistry Chemical reaction Chloride Phosphates Analytical Chemistry law.invention Metal Calcium Chloride chemistry.chemical_compound Spinacia oleracea law medicine Animals Crystallization Molecular Biology Alkaline earth metal Chemistry Organic Chemistry Trehalose General Medicine Plant Leaves Strontium visual_art Anhydrous visual_art.visual_art_medium Biotechnology medicine.drug |
| Zdroj: | Biosci. Biotechnol. Biochem.. 69:7-12 |
| ISSN: | 0916-8451 |
| Popis: | We investigated the interaction between trehalose and alkaline-earth metal ions. The nuclear relaxation times of carbon atoms of trehalose were shortened by addition of the alkaline-earth chloride salts, MgCl2, CaCl2, and SrCl2, indicating that trehalose formed metal-complexes with the alkaline-earth metal chlorides. From the data of the 1H-1H coupling constants of trehalose in the presence of the alkaline-earth chlorides, it appeared that trehalose formed complexes with MgCl2, and CaCl2 at the various complexing sites: Mg2+ was coordinated to O-4 and O-4' of trehalose, and Ca2+ to O-2 and O-3. We succeeded in the preparation of two types of crystals of the trehalose/CaCl2. One was a crystal consisting of trehalose, CaCl2, and water in a ratio of 1:1:1. The other was an anhydrous crystal containing trehalose and CaCl2 in a ratio of 1:2. Several applications of the complexing between trehalose and the metal ions for food processing are proposed. |
| Databáze: | OpenAIRE |
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