菌糠是指食用菌栽培采收后废弃的固体培养基质。我国是世界上食用菌产量最大的国家,年产量达700万吨,初步估计菌糠量也不少于700万吨。目前,大部分的菌糠被随意废弃,给产地造成环境污染。食用菌菌糠的主要组成为食用菌菌丝体,不同栽培基质和菌种栽培后所产生的菌糠,其营养成分 Mushroom bran refers to the edible fungus cultivated after harvest abandoned solid culture medium. China is the world’s largest producer of edible mushrooms with an annual output of 7 million tons. The initial estimate of the amount of mushroom bran is not less than 7 million tons. At present, most of the fungus bran is discarded at will, causing environmental pollution to the producing areas. The main composition of edible fungi bran is edible mushroom mycelium, cultivated different substrates and strains of fungi produced after bran, its nutritional content