申请人:MINNESOTA MINING AND MANUFACTURING COMPANY
公开号:EP0107832A2
公开(公告)日:1984-05-09
A storage-stable, high potency allergenic extract is prepared by ultrafiltration, retaining fractions having molecular weights of from 1000 to 100,000, and treating the solution with gel polymer and/or carbon absorbents. The extract is dried to a moisture content of less than one weight percent water. The purified solution and aqueous reconstituted solutions of the dried extract provide a transparent, colorless solution which has greatly increased stability, remaining transparent and colorless for extended periods.
通过超滤,保留分子量在 1000 到 100,000 之间的馏分,并用凝胶聚合物和/或碳吸收剂处理溶液,制备出储存稳定的高活性过敏原提取物。提取物经干燥后,水分含量小于 1%。纯化后的溶液和干燥提取物的重配水溶液可提供透明无色的溶液,其稳定性大大提高,可长时间保持透明无色。