Shiitake mushroom (Lentinula edodes) is usually cultivated on the oak log. Log cultivation of this mushroom is getting difficult to get oak logs and has a weak point of its long cultivation period. Recently sawdust cultivation is getting increase. It is important to make mycelia browning on the substrate surface. This browned surface in sawdust cultivation plays an important role like as artificial bark of the oak log, which protects the other pests and suppresses water evaporation in the substrate. The period for mycelia browning is so long that the sawdust cultivation of Shiitake mushroom can not spread well into the mushroom farms. The development of methods for the rapid mycelia browning is quite required. In this article we would like to discuss about the enzymatic activities related mycelia browning and search the methods of cultivation period reduction.

ABSTRACT
 1. 서론
 2. 표고의 재배
 3. 표고의 효소
 4. 표고의 갈변
 5. 결론 및 전망
 참고문헌

• 김영호(농업과학기술원 응용미생물과) | Young-Ho Kim
• 유창현( 산림버섯연구소) | 유창현
• 성재모( 강원대학교) | 성재모
• 공원식( 농업과학기술원 응용미생물과) | 공원식