| 摘要 |
PURPOSE:To produce the subject mineral composition excellent in absorption from readily available raw materials easy to get and store, and advantageous from the viewpoint of production facility and cost by using an ash obtained from a specific plant raw material. CONSTITUTION:Heavy metals such as Ag, Hg and Pb are initially precipitated and removed from (A) an ash selected from an ash derived from bean curd lees, a tree-derived ash and an ash derived from mulukkiyya leaves by adding a mineral acid (e.g. hydrochloric acid) or an organic acid (e.g. acetic acid) thereto and adjusting pH to 1 to 5. (B) An extract of seaweeds is then added thereto and minerals are subsequently precipitated in the form of their salts, e.g. by adding potassium carbonate, etc., thereto and adjusting pH to 5 to 10, preferably 6 to 8. The resultant material is finally dried, thus producing the objective composition containing mineral components derived from the components (A) and (B). In addition, this composition contains preferably 10 to 100wt.% Ca as a mineral component. |
