Department of Biochemistry, Biotechnology Division, the Cuban Institute for Research on Sugar Cane Byproducts, Via Blanca 804, P.O. Box 4026, Havana, Cuba.
World J Microbiol Biotechnol. 1992 Jul;8(4):402-5. doi: 10.1007/BF01198754.
Four mushroom strains ofPleurotus spp. were cultivated on sugar cane crop residues for 30 days at 26°C. Biochemical changes affected the substrate as a result of fungal growth, in terms of nitrogen, lignin, cellulose and hemicellulose contents. All strains showed a strong ligninolytic activity together with variable cellulolytic and xylanolytic action.Pleurotus sajor-caju attacked lignin and cellulose at the same rate, showing a degradation of 47% and 55%, respectively. A better balance was shown by theP. ostreatus-P. pulmonarius hybrid, which exhibited the poorest cellulolytic action (39%) and the highest ligninolytic activity (67%). The average composition of mushroom fruit bodies, in terms of nitrogen, carbohydrates, fats and amino acid profiles, was determined. Crude protein and total carbohydrate varied from 23% to 33% and 36% to 68% of dry matter, respectively. Fat ranged from 3.3% to 4.7% and amino acid content from 12.2% to 22.2%. Slight evidence for a nitrogen fixing capability was encountered in the substrate to fruit body balance.
四种平菇菌株在 26°C 下用甘蔗作物残余物培养 30 天。由于真菌的生长，生化变化会影响到氮、木质素、纤维素和半纤维素的含量。所有菌株都表现出很强的木质素分解酶活性，同时具有不同程度的纤维素酶和木聚糖酶活性。糙皮侧耳和肺形侧耳以相同的速度攻击木质素和纤维素，分别降解 47%和 55%。平菇-鲍鱼杂交种表现出更好的平衡，其纤维素酶活性最差（39%），木质素分解酶活性最高（67%）。通过测定蘑菇子实体的氮、碳水化合物、脂肪和氨基酸含量，确定了其平均组成。粗蛋白和总碳水化合物分别占干物质的 23%至 33%和 36%至 68%。脂肪含量在 3.3%至 4.7%之间，氨基酸含量在 12.2%至 22.2%之间。在基质到子实体的平衡中，发现了轻微的固氮能力的证据。
