| 摘要 |
PURPOSE:To stably preserve a microcapsule for a long period of time, by holding the microcapsule having an enclosed substance in a preserving solution having osmotic pressure 3-50% higher than that of the enclosed member. CONSTITUTION:A microcapsule may be a small body constituted of at least one or more of a membrane having a semipermeable property. An enclosed substance may be any one and is not limited specially but pref. a hydrophilic substance. A preserving solution may be any solution having osmotic pressure 3-50% higher than that of the enclosed substance in the microcapsule and is not limited specially. As mentioned above, by preserving the microcapsule in the solution having osmotic pressure 3-50% higher than that of the enclosed substance, the substance in the microcapsule is held therein by slight osmotic pressure difference and storage stability can be enhanced by 5 times or more as compared with the using an isotonic solution.
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