不同硒源栽培模式下紫芝的富硒研究

目的]研究不同硒源栽培模式下紫芝的富硒情况。方法]微波消解-ICP-MS法对不同栽培模式富硒紫芝中的Mg、Ca、Fe、Cr、Co、Cu、Zn、As、Cd、Pb、Se、Ag、Hg 13种元素进行测定和基质中的Se检测。通过添加无机硒元素(亚硒酸钠、活化硒矿)富硒栽培和天然富硒原料富硒栽培,研究不同硒源栽培模式下紫芝的富硒情况。结果]14个富硒样品中检测出Mg、Ca、Fe、Cr、Co、Cu、Zn、As、Cd、Pb、Se,未检出Ag、Hg这2种元素。添加亚硒酸钠为硒源时,当基质中硒含量为41.00 mg/kg,富硒效果最佳;当基质中硒含量大于110.00mg/kg,富硒效果较差。在添加活化硒矿为硒源时,富硒效果较差。其他元素含量较接近。结论]添加亚硒酸钠硒源比添加活化硒矿硒源的富硒效果较好。

Study on th e Selenium-enriched Ganoderma lucidum under Different Selenium Cultivation Models

Jian-feng,CHEN Xi-rong* ,LIN Fang-neng et al (Forestry Research Institute of Hainan Province, Haikou,Hainan 57110) Abstra ct Objective] The research aimed to study the selenium-enriched condition of Ganoderma lucidum under different selenium cultivationmodels .Method]The contents of Mg, Ca, Fe, C,r Co, Cu, Zn, As, Cd, Pb, Se, Ag and Hg of selenium-enriched Ganoderma lucidum underdifferent cultivation models were determined, and the selenium in the matrix was detected by microwave digestion-ICP-MS method.The selenium-enriched condition of Ganoderma lucidum was studied by adding inorganic selenium (sodium selenite, activated selenium ore) and natural selenium-enriched raw material selenium-enriched cultivation.Result]Mg, Ca, Fe, Cr, Co, Cu, Zn, As, Cd, Pb and Se were detected in 14 selenium-enriched samples.Ag and Hg were not detected.When selenium selenite was added as selenium source, the selenium content was41.00 mg/kg and the selenium-enriched effect was the best.When the content of selenium in the matrix was more than 110.00 mg/kg,the selenium-enriched effect was poor.When the activated selenium ore was selenium, the selenium-enriched effect was poor.Other elements were closer.Conclusion]The selenium-enriched effect of adding selenite selenium source was better than that of selenium source of adding activated selenium ore.