食用菌菌糠中矿质元素含量的测定及品质分析  

Mineral elements determination and quality analysis of mushroom substrate

作　　者：乔洁[1,2,3] 陈玉[1] 侯晓强[1,2,3] 解春艳[1,2,3] 李丛胜[1] 

机构地区：[1]廊坊师范学院生命科学学院,河北廊坊065000 [2]河北省高校食药用菌资源开发应用技术研发中心,河北廊坊065000 [3]廊坊市食用菌技术重点实验室,河北廊坊065000

出　　处：《中国酿造》2017年第2期171-174,共4页China Brewing

基　　金：河北省大学生创新创业训练计划(201510100015);廊坊师范学院微生物学重点学科项目(2015001)

摘　　要：采用微波消解-原子吸收光谱法测定了金针菇和杏鲍菇菌糠中矿质元素含量。结果表明,在优化仪器工作条件下,两种菌糠的8种矿质元素测定的相对标准偏差(RSD)为0.36%~1.93%,回收率为95.33%~106.00%,精密度试验结果 RSD值为0.24%~1.99%。两种菌糠中8种矿质元素含量分别为K 69 983.74~75 667.84 mg/kg、Ca 66 208.45~62 607.39 mg/kg、Mg 27 053.00~35 422.69 mg/kg、Fe4 533.14~5 776.33 mg/kg、Na 3 102.59~3 164.90 mg/kg、Mn 655.93~926.62 mg/kg、Zn 265.08~297.20 mg/kg、Cu 36.68~42.12 mg/kg。两种菌糠均有较高的品质,可作为土壤改良剂、复合矿物质肥和微生物肥的原料,也可作为二次栽培食用菌的培养料。The contents of mineral elements in mushroom substrate of Flammulina velutiper and Pleuroms eryngii were determined by microwave digestion-atomic absorption spectrometry method. Results indicated that under the optimal working conditions, the relative standard deviation （RSD） of these eight mineral elements in the mushroom substrate was 0.36-1.93%, the recovery rate was 95.33%-106.00%, the RSD of precision tests results was 0.24%-1.99%. The contents of eight mineral elements in the mushroom substrate were K 69 983.74-75 667.84 mg/kg, Ca 66 208.45-62 607.39 mg/kg, Mg 27 053.00-35 422.69 mg/kg, Fe 4 533.14-5 776.33 mg/kg, Na 3 102.59-3 164.90 mg/kg, Mn 655.93-926.62 mg/kg, Zn 265.08-297.20 mg/kg, Cu 36.68-42.12 mg/kg, respectively. The two mushroom substrates had high quality, which could be used as the raw material of soil conditioner, composite mineral fertilizer and microbial fertilizer, and also could be used as the secondary cultivation substrates of edible mushrooms.

关 键 词：食用菌菌糠 矿质元素 微波消解 原子吸收光谱法 

分 类 号：O657.31[理学—分析化学]