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Degradation of geosmin‐like compounds by selected species of Gram‐positive bacteria
Author(s) -
Saadoun,
El-Migdadi
Publication year - 1998
Publication title -
letters in applied microbiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.698
H-Index - 110
eISSN - 1472-765X
pISSN - 0266-8254
DOI - 10.1046/j.1472-765x.1998.00280.x
Subject(s) - bacillus cereus , geosmin , bacteria , arthrobacter , biodegradation , rhodococcus , cereus , microbiology and biotechnology , biology , strain (injury) , bacillus (shape) , food science , chemistry , ecology , organic chemistry , genetics , odor , anatomy
Biodegradation of geosmin produced by Streptomyces halstedii (A‐1 strain) was investigated using seven Gram‐positive bacteria. Bacterial action on the A‐1 extract was followed at 15, 45 and 120 min. Bacillus cereus ssp. thuringiensis HD‐1, B. cereus 3711 and B. cereus ssp. mycoides 4379 showed no effect. However, Arthrobacter atrocyaneus , Arth. globiformis , Chlorophenolicus N‐1053 and Rhodococcus maris caused a colour change from blue to yellow (positive reaction). These data suggest that geosmin can be degraded by specific species of Gram‐positive bacteria. Biodegradation of geosmin, which causes bad odour in drinking water, can be used as a new technology in water treatment.