| 摘要 |
The invention concerns a method for preparing a hydrocolloid powder composition exhibiting good dispersibility in an aqueous medium, without formation of lumps, and whereof the hydration time is controllable, comprising steps which consist in: preparing a potentially reactive crosslinking powder by contacting a highly absorbent support powder with a crosslinking agent capable of crosslinking a hydrocolloid powder, optionally under effect of heat; mixing, optionally by dry process, said powder with a hydrocolloid powder; optionally treating said mixture of powders with water optionally containing salts; and optionally heat-treating said mixture of powders. The invention also concerns said hydrocolloid powder composition comprising at least a crosslinked hydrocolloid constituent, a residual amount of crosslinking agent less than 1000 ppm, a support powder and optionally water. |
