PROBLEM TO BE SOLVED: To provide a mushroom bed medium comprising bamboo powder, effective for promoting growth of mushroom, preventing disease of grown fruit body and maintaining a buffering effect, and capable of corroding, degrading and assimilating with the growing medium after harvest.SOLUTION: A bamboo material of Mousou bamboo, Japanese bamboo, dwarf bamboo, etc., is crushed to small pieces of a predetermined size, kneaded under pressure in a pressure extruder having an inner pressure of at least ≥15 Kg/cm2, cut with a cutter to a minced state having a length of 20-200 mm, and ejected to the atmosphere through a perforated nozzle at the tip end of the extruder to effect splitting to hard texture and soft texture by swelling and diffusion and, furthermore, facilitating participation of microorganism enabling corrosive assimilation with the medium by corrosion since starch particles are present around cellulose and hemicellulose constituting cell wall. The mushroom bed medium comprising bamboo powder fully exhibits a characteristic bactericidal property and antibacterial property of bamboo in each stage of cultivation process to repel an infection source by imparting the mushroom bed substrate with a characteristic bactericidal property and antibacterial property of bamboo material and bamboo attained by repeated corrosive degradation and assimilation.COPYRIGHT: (C)2013,JPO&INPIT【課題】育成促進と育成果実の防病と緩衝保持をなし、且収穫後に育成培地と腐食分解同化しえる竹粉での菌床培地の提供である。【解決手段】孟宗竹、和竹、笹竹等の竹材を所要の小片に破砕のうえ、加圧押出装置により少なくともその内部圧力が15Kg/cm2以上で加圧混練し、カッターでミンチ状に且その長さを20乃至200mmに裁断のうえ、先端の多孔なノズルより大気中に吐出し、膨潤拡散して硬組織と柔組織の解体と、細胞壁を形成するセルロースやヘミセルロースの周囲にはデンプン粒が存在するため、微生物の関与が容易となり腐食による培地との腐食同化が可能となる。繰り返し腐食分解同化させることを特徴とした竹材と竹本来の持っている殺菌性及び抗菌性を菌床基材に導入することにより、栽培過程の各過程で竹本来の持っている殺菌性及び抗菌性をフルに発揮し感染源を寄せ付けない働きを行う竹粉での菌床培地である。【選択図】なし
