Production of catalase by fungi growing at low pH and high temperature.
More than 100 fungi were isolated from cultures at pH 1.0 or 2.5 and 42-45 degrees C, and the production of catalases was investigated. Four strains produced a catalase with high stability at pH 2.0, and three of them produced two extracellular catalases and four intracellular catalases. In these four intracellular catalases, two catalases were similar to extracellular catalases in enzymatic properties and pI. These strains belonged to Aspergillus niger.
Isobe
Kimiyasu
K
Department of Agro-bioscience, Faculty of Agriculture, Iwate University, 3-18-8 Ueda, Morioka 020-8550, Japan. kiso@iwate-u.ac.jp
Inoue
Nobuaki
N
Takamatsu
Yuuki
Y
Kamada
Kiyohiro
K
Wakao
Norio
N
D001234:Aspergillus niger / Q000201:enzymology / Q000254:growth & development* / Q000302:isolation & purification; D002374:Catalase / Q000096:biosynthesis*; D005656:Fungal Proteins / Q000096:biosynthesis*; D005658:Fungi / Q000201:enzymology / Q000254:growth & development* / Q000302:isolation & purification; D006358:Hot Temperature; D006863:Hydrogen-Ion Concentration; D013696:Temperature
D005656:Fungal Proteins; D002374:Catalase