一株嗜热嗜酸纤维素酶高产霉菌分离鉴定及其酶学性质研究

Isolation and Identification on a Thermoacidophilic Fungus of High-producing Cellulase and the Characteristics of its Enzyme

摘要:

从含有大量纤维素物质的堆肥里分离到一株土曲霉，其最适生长温度为45℃，最适生长酸碱度为pH 2.0，在最适条件下培养该菌的最高CMCase活性可达3.680IU/mL，此酶最适反应温度和酸碱度为60℃和pH2.0，并且具有较高的热稳定性。

Abstract:

A novel Aspergillus terreus strain M11 was isolated from the compost containing cellulose and identified. The isolate grow best at 45℃ and pH2.0. It was found that the activity of the CMCase was up to 3.680IU/mL with high heat stability and the optimal reaction conditions of the CMCase were at 60℃ and pH2.0.