金针菇菌糠不同部位营养成分比较

Compositional Analysis of Flammulina velutipes Spent Mushroom Substrate

将金针菇(Flammulina velutipes)菌糠分为上、中、下均等3层,每层约4cm,采用国家标准和HPLC法分别测定基本营养成分和有机酸含量,结果表明:金针菇菌糠中粗纤维的含量最高(24.17%～27.40%),其次是总糖(23.14%～24.79%)和灰分(12.30%～21.28%)。粗脂肪的含量最低(0.84%～1.04%)。其中上层粗脂肪、总酸与中、下层差异显著。

Spent mushroom substrate （SMS） remaining in 1100 mL capacity cultivation bottles （17.3 cm x 10 cm diameter） after growing Flammulina velutipes was divided into upper （top 4.0 cm）, lower （bottom 4.0 cm） and middle （4.0 cm） layers. Analyses revealed that the fiber, total sugar, ash, crude protein, total acid and crude fat contents of the three layers ranged between 24.17%～27.40%, 23.14% ～24.79%, 12.30%～21.28%, 8.58%～9.30%, 4.65%～7.84% and 0. 84% ～1. 04% , respectively. Crude fat and total acid levels in the upper layer were significantly higher compared with the other two layers.