通过化学改性真菌生物质从水溶液中生物去除五价砷
Bioremoval of arsenic (V) from aqueous solutions by chemically modified fungal biomass.
作者信息
Cárdenas-González J F, Acosta-Rodríguez I, Téran-Figueroa Y, Rodríguez-Pérez A S
机构信息
Laboratorio de Micología Experimental, Facultad de Ciencias Químicas, Universidad Autónoma de San Luis Potosí, Av. Dr. Manuel Nava No. 6, Zona Universitaria, 78320, San Luis Potosí, SLP, Mexico.
Laboratorio de Microbiología, Parasitología y Toxicología de Alimentos, Facultad de Enfermería, Universidad Autónoma de San Luis Potosí, Av. Niño Artillero No. 130, Zona Universitaria, 78320, San Luis Potosí, Mexico.
出版信息
3 Biotech. 2017 Jul;7(3):226. doi: 10.1007/s13205-017-0868-5. Epub 2017 Jul 5.
The biosorption of arsenic (V) on nine chemically modified biomasses (with iron oxide coated) of mycelia fungi: Aspergillus flavus III, IV and V, Aspergillus fumigatus I-II, Paecilomyces sp., Cladosporium sp., Mucor sp-1 and 2 was studied in this work. This study provides evidence that the biomasses of the fungi A. flavus, IV, III and V, Paecilomyces sp., and A. fumigatus I were very efficient at removing 1 mg/L of the metal in solution, using atomic absorption spectroscopy (AAS), achieving the following percentage of removals: 97.1, 92.3, 90.3, 89.0, and 83.4%, respectively. The results of adsorption were obtained at pH 6.0, 30 °C after 24 h of incubation, with 1 g/100 mL of fungal biomass. These results suggest the excellent potential of almost all isolated strains for bioremediation and removal of metals from contaminated sites.
本研究考察了九种化学改性（包覆氧化铁）的丝状真菌生物量（黄曲霉III、IV和V、烟曲霉I-II、拟青霉属、枝孢属、毛霉属-1和2）对砷（V）的生物吸附作用。本研究提供的证据表明，使用原子吸收光谱法（AAS），黄曲霉IV、III和V、拟青霉属以及烟曲霉I的生物量在去除溶液中1mg/L的该金属方面效率非常高，去除率分别达到97.1%、92.3%、90.3%、89.0%和83.4%。吸附结果是在pH 6.0、30°C、孵育24小时后，真菌生物量为1g/100mL的条件下获得的。这些结果表明几乎所有分离菌株在生物修复和从污染场地去除金属方面具有巨大潜力。
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