# Pleurotus ostreatus가 生産하는 酵素에 관한 硏究 - IV. Xylanase의 性質-

• 홍재식 (전북대학교 농과대학 농화학과)
• Published : 1976.09.01
• 27 14

#### Abstract

Some properties of xylanase produced by Pleurotus ostreatus during its gorwth in a rice straw medium were investigated. The results are summarized as follows : 1) The optimum pH of xylanase was 5.0 and the stable pH ranged from 4.5 to 6.0. 2) The optimum temperature for the xylanse was around $50^{\circ}C$ and the xylanse activity was completely lost in 10 minutes at $70^{\circ}C$ 3) The activity of xylanse was inhibited by managanous ion, but was increased by other metalic ions. Especially K, Mg and Ca ions considerably increased the activity.