Penicillin ELISA青霉素检测试剂盒

Preparation of an Industrial Biocatalyst of Penicillin G Acylase on Sepabeads: Improving the Design of Penicillin G Hydrolysis

The enzyme penicillin G acylase (PGA) is currently employed at an industrial scale in the hydrolysis of penicillin and cephalosporin G. Here, we describe the preparation of a new immobilized preparation of the enzyme that yields derivatives

A Method to Assay Penicillin-Binding Proteins

Key enzymes that assemble the bacterial cell wall are also the target of the Β-lactam class of antibiotics. The covalent binding of labeled penicillin to these proteins has been used in numerous studies in drug discovery, antibiotic

青霉素法 penicillin method

用加有青霉素的培养基来选择细菌的营养缺陷型的一种方法。也就是由于青霉素是细菌细胞壁的合成抑制剂，利用其可杀死正在繁殖的细菌的性质，对所有青霉素敏感菌的一种方便的选择法。例如将细菌先在完全培养基中培养24小时，离心分离菌体，即用生理盐水（ 0.85％— 0.95％ NaCl溶液）反复离心洗涤 2— 3次，然后在加有青霉素（ 100— 300单位 /立升）的基本培养基中于最适温度中培养 24小时。这时不是营养缺陷型的原来野生型细胞会因不断分裂而被青霉素所杀死。然后将菌悬液放在完全琼脂