The present invention has publicized a bacteria culture medium. In common bacteria culture medium, one kind or several kinds of β-lactam antibiotics and/or the salts thereof were premixed. The β-lactam antibiotics and/or the salts thereof premixed in the bacteria culture medium is slightly soluble in water at 25° C. and the solubility is less than 10 mg/ml. The concentrations of the β-lactam antibiotics premixed in the culture medium are greater than the solubility of the used β-lactam antibiotics at 25° C., but are less than 100 mg/ml. The bacteria culture medium can be used to selectively culture bacteria with β-lactam antibiotic resistance and can be stored for a long time.
本发明公开了一种细菌
培养基。在常见的细菌
培养基中,一种或几种β-内酰胺类抗生素及/或其盐被预混。在细菌
培养基中预混的β-内酰胺类抗生素及/或其盐在25℃下略微溶于
水,溶解度小于10 mg/ml。预混在
培养基中的β-内酰胺类抗生素的浓度大于25℃下所用β-内酰胺类抗生素的溶解度,但小于100 mg/ml。该细菌
培养基可用于选择性培养具有β-内酰胺类抗生素耐药性的细菌,并可长时间储存。