Bacteriolytic agent

Details Bacteriolytic agent Bacteriolytic agent

2011-08-23

2011-08-23

Minnifield, Nita M (Department: 1645)

Chemistry: molecular biology and microbiology

Micro-organism, per se ; compositions thereof; proces of...

Lysis of micro-organism

Reexamination Certificate

active

08003369

ABSTRACT:
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.

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