摘要
研究了分离菌株棒曲霉（ＡｓｐｅｒｇｉｌｕｓｃｌａｖａｔｕｓＤｅｓ）ＨＤ１１的生理特性。结果表明：棒曲霉ＨＤ１１具有多种胞外水解酶，能利用多种碳源，但不能利用菊糖；其麸曲糖化酶比活力为６６８４．５Ｕ／ｇ，正常生长发育温度为１５～３８℃，最适生长温度为２５～３５℃，最适生长ｐＨ为３．０～５．０。研究中发现。
The physiological property of the isolated strain-Aspergillus olavatus Des strain HD11 had been studied. The results showed that the strain could produce a number of extracelluar hydrolytic enzymes and utlize lots of material as sole source of carbon except nuilin, its glucoamylase activity or bron koji was 6684.5 U/g, it could grow normally from 15 ℃ to 38 ℃, the range of its optimum growth temperature was from 25 ℃ to 35 ℃ and that of its optimum growth pH was from 3.0 to 5.0. It was found that A clavatus could show temperature dependent dimorphism.
出处
《湖北农学院学报》
1997年第4期279-282,共4页
Journal of Hubei Agricultural College
关键词
棒曲霉
生理特性
温度二型现象
糖化酶比活力
Aspergillus clavatus
physiolgical properies
temperature dependent dimorphism
glucoamylase activity
