title: Biodegradation of tetracycline by the yeast strain Trichosporon mycotoxinivorans XPY-10.
abstract: We investigated the behavior of tetracycline degradation and its degradation products upon treatment of isolated yeast that we termed "XPY-10." XPY-10 was isolated from wastewater and identified as Trichosporon mycotoxinivorans by morphological and physiological tests and 5.8S rRNA ITS sequencing. In our experiments, 78.28 ± 0.8% of tetracycline was removed within 7 days with XPY-10. The degradation of tetracycline fitted well with the first-order kinetic model. We also speculated upon the biodegradation products formed during biodegradation. The possible structures of five products were determined using liquid chromatography-tandem mass spectrometry. During practical application, XPY-10 was shown to have an obvious influence on biodegradation, and 89.61% of tetracycline was removed in feedlot sewage after 7 days of reaction. The chemical oxygen demand removal reached 73.47%.
authors.affiliation: a College of Life Sciences , Fujian Normal University , Fuzhou , China.|b Fujian Institute of Research on the Structure of Matter , Chinese Academy of Sciences , Fuzhou , China.
authors.forename: Xiaochen
authors.initials: X
authors.lastname: Huang
authors.affiliation: a College of Life Sciences , Fujian Normal University , Fuzhou , China.
authors.forename: Xinyang
authors.initials: X
authors.lastname: Zhang
authors.affiliation: a College of Life Sciences , Fujian Normal University , Fuzhou , China.
authors.forename: Fuxin
authors.initials: F
authors.lastname: Feng
authors.affiliation: a College of Life Sciences , Fujian Normal University , Fuzhou , China.
authors.forename: Xuping
authors.initials: X
authors.lastname: Xu
mesh_terms: D001673:Biodegradation, Environmental; D002851:Chromatography, High Pressure Liquid; D007700:Kinetics; D010802:Phylogeny; D012722:Sewage; D053719:Tandem Mass Spectrometry; D013752:Tetracycline / Q000378:metabolism*; D014250:Trichosporon / Q000145:classification / Q000378:metabolism*; D062065:Wastewater; D014874:Water Pollutants, Chemical / Q000378:metabolism*
chemical_list: D012722:Sewage; D013752:Tetracycline; D062065:Wastewater; D014874:Water Pollutants, Chemical
keywords: Biodegradation efficiency; LC-MS/MS; Trichosporon mycotoxinivorans XPY-10; biodegradation products; sewage; tetracycline