Extract of bacterial macromolecules, a process for its preparation and a
pharmaceutical composition containing the same
    1.
    发明授权
    Extract of bacterial macromolecules, a process for its preparation and a pharmaceutical composition containing the same 失效
    细菌大分子的提取物,其制备方法和含有该大分子的药物组合物

    公开(公告)号:US5424287A

    公开(公告)日:1995-06-13

    申请号:US119124

    申请日:1993-09-20

    摘要: An extract based on modified bacterial proteins includes a mixture of acid bacterial polyanions having a molecular weight in the range from 10,000 to 1,000,000 and an isoelectric point in the range from 2.5 to 5.5, and in which the added weights of the constituent amino acids amount to at least 50% of the extract. The preparation or this protein extract includes a cultivation of bacteria in an aqueous medium and then the alkaline extraction of this bacterial suspension and the purification of the protein extract. The alkaline extraction is carried out in the presence of a dilute aqueous source of OH.sup.- ions and at a stable pH in the range from 11 to 13, the decrease of this pH during the acid extraction not exceeding 0.4. The protein extract thus obtained can be used as an active ingredient in a pharmaceutical composition.

    摘要翻译: PCT No.PCT / CH93 / 00029 Sec。 371日期:1993年9月20日 102(e)1993年9月20日PCT 1993年2月3日提交PCT公布。 出版物WO93 / 16190 日期为1993年8月19日。基于修饰的细菌蛋白质的提取物包括分子量在10,000至1,000,000范围内且等电点在2.5至5.5范围内的酸性细菌聚阴离子的混合物,其中添加重量 的组成氨基酸达到提取物的至少50%。 制备物或该蛋白质提取物包括在水性培养基中培养细菌,然后碱性提取该细菌悬浮液并纯化蛋白质提取物。 碱性萃取在OH-离子水溶液的存在下进行,在11-13的稳定pH范围内,酸萃取时pH值的降低不超过0.4。 由此获得的蛋白质提取物可以用作药物组合物中的活性成分。