摘要
从广泛收集的豆豉成品及半成品中筛选到数株菌落形态各异且具有纤溶酶活性的菌株.分别采用亚硝酸和紫外线对豆豉纤溶酶产生菌DC-12进行诱变育种,成功筛选到了3株突变株,其纤溶酶产量较出发菌株分别提高了3.6、3.7和4.75倍.
Several fibrinolytic enzyme-producing strains with different colony morphology were isolated from Douchi. A strain DC-12 with higher fibrinolytic activity was treated with ultraviolet rays and HNO2. Three mutants DC-12N8, DC-12N10 and DC-12U8 with high yield of fibrinolytic enzyme and high stability were obtained, and their enzyme production increased by 3.6-fold, 3.7-fold and 4. 75-fold as compared with those of the original strain, respectively.
出处
《生命科学研究》
CAS
CSCD
2006年第1期45-49,共5页
Life Science Research
