利用桉树木屑栽培黑木耳及其营养成分分析

Cultivation of Auricularia heimuer with Eucalyptus spp.Substrates and Analysis of Its Nutritional Contents

以桉树木屑为基质,阔叶树木屑为对照,开展桉树木屑栽培黑木耳对比试验,并检测了黑木耳子实体主要营养成分和金属含量。结果表明,桉树栽培黑木耳菌丝生长速度(0.349 cm·d^(-1))比对照(0.326 cm·d^(-1))快7.05%;桉树木屑污染率比对照低54.5%。平均袋产量和生物学效率均高于杂木屑,其中生物学效率比对照高3.75%。添加60%桉树木屑栽培的黑木耳子实体的钙含量比对照高83.3%,而锰含量比对照低41.8%;其他多种营养成分、金属含量及氨基酸含量与对照无明显差异,各成分指标均符合黑木耳国家标准及国家标准食品中污染物限量的要求,表明桉树栽培黑木耳可行。

A comparative experiment was carried out to cultivate Auricularia heimuer with Eucalyptus spp.sawdust used as substrate and broad-leaved sawdust as control.And the main nutrients and metal content of the A.heimuer fruit body were tested.The results showed that the mycelium growth rate(0.349 cm·d^(-1))of A.heimuer in Eucalyptus spp.was 7.05%faster than that of the control(0.326 cm·d^(-1)),the pollution rate was 54.5%lower than the control.The average of bag yield is higher than the control,and the biological efficiency was 3.75%higher than the control.The calcium content of the A.heimuer fruit body is 83.3%higher than the control,while the manganese content is 41.8%lower,other nutrients are not significantly different from the control,and each nutrient composition index all meet the requirements of the national standards for A.heimuer and the national food safety standards for the limits of contaminants in food,it is feasible to cultivate A.heimuer in Eucalyptus spp..