菌草对灵芝生长状况及营养成分的影响

Effects of Grass-substrates on Growth and Nutrients of Ganoderma lucidum

以菌草栽培灵芝,分析灵芝菌丝生长速度、产量、生物转化率、营养成分及重金属含量。结果表明:灵芝在配方1(芒萁30%、巨菌草53%、麦麸15%、石膏2%)培养基中菌丝生长速度显著高于对照,产量与生物转化率接近对照;灵芝在配方2(芒萁30%、五节芒53%、麦麸15%、石膏2%)培养基中菌丝生长速度显著高于对照,产量与生物转化率与对照无显著差异;两种菌草灵芝的营养成分接近于、有的甚至略高于对照。且两者子实体中的重金属含量均符合国家对食用菌中重金属含量的要求。综上所述,配方1和配方2可以替代木屑栽培灵芝。

Various grass-substrates, JUNCAO, used in cultivating Ganoderma lucidum were studied to determine their effects on the mycelial growth, yield, biological conversion rate, nutrient composition, and heavy metal content of the medicinal fungi. The results showed that the mycelial growth rate and nutrient contents of G. lucidum cultivated in two media formulated with JUNCAO were greater than those of control. The yield and biological conversion rate were found to be similar to control, while heavy metals in the fruiting bodies of the fungi were below the limits of the National Food Safety Standards. It appeared that Formula 1 （containing 30% of Dicranopterisdichotoma, 53% of Pennisetum giganteum, 15% of wheat bran, 2% of gypsum） or Formula 2 （containing 30% of D. dichotorna, 53% of Miscantuus floridulus, 15% of wheat bran, 2% of gypsum） could adequately replace sawdust in cultivating G. lucidum.