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    • 74. 发明授权
    • Bacteriolytic agent
    • 细菌分解剂
    • US08003369B2
    • 2011-08-23
    • US12092610
    • 2006-11-06
    • Shunichiro YamaguchiShuji MiuraHiroaki Maeda
    • Shunichiro YamaguchiShuji MiuraHiroaki Maeda
    • C12N1/06
    • C12N1/06C11D1/62
    • The present invention is a bacteriolytic agent containing a cationic surfactant (A) of which a counteranion is an acid having a pKa (25° C.) of 0 to 10. As the counterion, a carboxylate anion is preferable. As the cationic surfactant (A), a quaternary ammonium salt-type surfactant is preferable. Examples of the useful substance include a protein, an amino acid, a nucleic acid, an antibiotic, sugars or vitamins.The bacteriolytic agent of the present invention is excellent in a bacteriolytic power in a step of extracting a useful substance from a microorganism (useful substance producing bacterium etc.). In addition, denaturation of the useful substance during the step is small.
    • 本发明是含有阳离子性表面活性剂(A)的溶菌剂,其中抗衡阴离子是pKa(25℃)为0〜10的酸。作为抗衡离子,优选羧酸根阴离子。 作为阳离子性表面活性剂(A),优选季铵盐型表面活性剂。 有用物质的实例包括蛋白质,氨基酸,核酸,抗生素,糖或维生素。 本发明的溶菌剂在从微生物(有用的生物细菌等)中提取有用物质的步骤中的溶菌能力优异。 此外,步骤期间有用物质的变性小。