Title
The thiocyanate degradation by fungi isolated from mining environments and evaluation of degradative capacity
Other title
Degradación de tiocianato por hongos aislados de ambientes mineros y evaluación de su capacidad degradativa
Date Issued
01 April 2012
Access level
metadata only access
Resource Type
journal article
Author(s)
Laboratorio de Microbiología Molecular y Biotecnología
Laboratorio de Microbiología Molecular y Biotecnología
Publisher(s)
Facultad de Ciencias Biologicas, Universidad Nacional Mayor de San Marcos
Abstract
Peru is one of the principal countries in mining extraction of minerals like gold, zinc, plumb and tin. Cyanide is used in gold production this compound is very toxic especially for environment, by nature reaction with sulfur it converts into thiocyanate (-SCN). In this paper, we isolate -SCN degrading fungus from Junin and Tumbes mining zones. Strains were assayed on 5 to 600 mM -SCN concentration, at least thiocyanate degrading kinetic was assayed at 1.2 g.L-1 of KSCN initial concentration, then the best strains had been morphological, biochemical and molecular identified using ITS RNA molecular marker. From 58 isolated fungus we found 4 unparfait funguses with a great thiocyanate degrading capacity those strains could be used for bioremediation processes. Thiocyanate degrading capacity of these strains was 50 g.L-1 on plate into 72 hours and their average capacity was 10.05 mg.L-1 -SCN with an standard velocity of -SCN degradation of 28.77 mg.L-1.h-1. Two strains were molecular identified as Fusarium trincictum by using ITS rDNA gene.
Start page
81
End page
88
Volume
19
Issue
1
Language
Spanish
OCDE Knowledge area
Micología Mineralogía
Scopus EID
2-s2.0-85044833758
Source
Revista Peruana de Biologia
ISSN of the container
15610837
Sources of information: Directorio de Producción Científica Scopus