Simple screening method for isolation of penicillin acylase-producing bacteria

Area of Science:

• Microbiology
• Biotechnology
• Enzyme Engineering

Background:

• Penicillin acylase is crucial for antibiotic production.
• Efficient screening methods are needed for identifying penicillin acylase-producing bacteria.
• Current methods may lack specificity or require specialized equipment.

Purpose of the Study:

• To develop a simple and specific screening method for penicillin acylase-producing bacteria.
• To enable the detection of both penicillin acylase and phenoxymethylpenicillin acylase activity.
• To provide a tool for rapid gene detection in penicillin acylase genetic engineering.

Main Methods:

• Utilized Serratia marcescens with differential sensitivity to 6-aminopenicillanic acid and benzylpenicillin.
• Developed a screening assay based on bacterial growth inhibition.
• Proposed an acidimetric method for detecting cloned penicillin acylase genes.

Main Results:

• The described method effectively screens for penicillin acylase-producing bacteria.
• The method demonstrates specificity and requires no specialized equipment.
• It is applicable to screening phenoxymethylpenicillin acylase activity.
• An acidimetric approach for rapid gene detection was suggested.

Conclusions:

• A straightforward and specific screening method for penicillin acylase has been established.
• This method facilitates the identification of relevant bacterial strains and enzyme activities.
• The proposed techniques support advancements in penicillin acylase research and genetic engineering.