Removal of cadmium by Pleurotus sajor-caju basidiomycetes

被引：15
作者：
Cihangir, N [1 ]
Saglam, N
机构：
[1] Hacettepe Univ, Fac Sci, Dept Biol, TR-06532 Ankara, Turkey
[2] Hacettepe Univ, Fac Educ, Dept Biol Educ, TR-06532 Ankara, Turkey
来源：
ACTA BIOTECHNOLOGICA | 1999年 / 19卷 / 02期
关键词：
D O I：
10.1002/abio.370190212
中图分类号：
Q81 [生物工程学（生物技术）]; Q93 [微生物学];
学科分类号：
071005 ; 0836 ; 090102 ; 100705 ;
摘要：
The bioaccumulation of cadmium by the white rot fungus Pleurotus sajor-caju onto dry biomass was investigated using aqueous media with concentrations in the range of 0.125 mM-1.0 mM The highest cadmium uptake (between 88.9 and 91.8%) was observed with aerobic fungal biomass from the exponential growth phase. Up to 1.0 mM cadmium gradually inhibited mycelium development, but never blocked it completely. Freeze-dried, oven-dried and non-metabolizing live Pleurotus sajor-caju biomass types were tested for their capacity to adsorb the test ion Cd2+ within the pH range of 4.5 to 6.0. Freeze-dried biomass proved to be the most efficient biomass type for Cd2+ metal adsorption. Therefore, Pleurotus sajor-caju may be used for heavy metal removal and bioremediation.
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页码：171 / 177
页数：7
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