Relationship between Carbohydrate Content and Fruit Body Yield on Sawdust-based Media of Auricularia polytncha

Studies were carried out to obtain the relation between carbohydrate content and fruit body yield of Auricularia polytricha on a sawdust-based medium. Mannitol and mannose resulted as favorable carbon sources for mycelial growth. Carbohydrate metabolites content was one of the important factors for fruit body formation, and resulted in maximum yield on 50 days culture. Glycogen content was clearly revealed to be inversely related to fruit body formation ratio. Trehalose content did not influence fruit body yield. Mannitol was a favorable metabolite for fruit body formation, but arabinitol showed no relationship in a polyol metabolism.