Biosorption of 241Am from solution and its biochemical fractionation in the mycelium of macromycetes

被引：2

作者：

Dementyev D.V. ^{[1
]}

Zotina T.A. ^{[1
]}

Manukovsky N.S. ^{[1
]}

Kalacheva G.S. ^{[1
]}

机构：

[1] Institute of Biophysics, Siberian Branch, Russian Academy of Sciences, Akademgorodok 50/50, Krasnoyarsk

来源：

Radiochemistry | 2015年 / 57卷 / 06期

关键词：

americium; fungus mycelium; sorption;

D O I：

10.1134/S1066362215060144

中图分类号：

学科分类号：

摘要：

Experiments with macromycetes Pleurotus ostreatus, Neonothopanus nambi, and Agaricus bisporus demonstrated for the first time that live mycelium of mushrooms, cultivated on a liquid culture medium, can efficiently take up dissolved 241Am in its biomass. Biochemical fractionation of the mycelium biomass demonstrated for the first time that the major fraction (up to 90%) of 241Am accumulated in the mycelium is bonded to structural polysaccharides of the cell walls. The sorption capacity of cell wall polysaccharides for 241Am is 2.7-3.6 times higher than that of the initial mycelium biomass, and the activity concentration of 241Am in the polysaccharides reached 950 Bq g-1 dry weight. © 2015 Pleiades Publishing, Inc.

引用

页码：661 / 665

页数：4

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