【摘要】 从四川师范大学校园内不同区域收集土壤,分离到一株高产黑色素的菌(MV5002).对MV5002菌株的发酵条件及培养基成分做了优化,结果表明最适培养基为(g/L):甘油1,牛肉膏10,NaC l 6,CaC l20.05,L-酪氨酸1.5,pH8.0,在优化条件下,产量达到3.45 g/L.将黑色素分离纯化后,对其理化性质做了初步研究.更多还原

【Abstract】 Bacterial strain MV5002 is isolated from soil in Sichuan Normal University campus,which can produce a higher amount of melanin.Optimizing the condition of fermentation and medium,the results indicate that the optimum fermentation medium is（g/L）:glycerol 1,beef extract 10,NaCl 6,CaCl₂ 0.05,L-Tyr 1.5,pH 8.0.The yield of melanin is 3.45 g/L in the optimum fermentation conditions.After isolation and purification,the melanin’s physical-chemical properties is researched.更多还原