Journal
BIORESOURCE TECHNOLOGY
Volume 272, Issue -, Pages 83-91Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2018.10.014
Keywords
Lincomycin; Co-composting; Antibiotic resistance genes (ARGs); Class 1 integron (intI1)
Funding
- National Natural Science Foundation of China [41601524]
- Scientific and Technological Project of Henan Province [172102110134]
- Research Project of Henan Xinxiang Hua Xing Pharmaceutical Factory [20160140A]
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This study explored the effects of co-composting of lincomycin mycelia dregs (LMDs) with furfural slag on variations in antibiotic resistance genes (ARGs) and the bacterial community. The results showed that more than 99% lincomycin was reduced after composting. Moreover, the total absolute and relative abundance of ARGs increased by 180 and 5 times, respectively. The gene lnuA was detected in the LMDs compost and it was proved to participate in lincomycin biodegradation based on the analysis of Pearson's correlation and the lincomycin degradation byproducts. Redundancy analysis showed the succession of the bacterial community had a greater influence than the environmental parameters (residual lincomycin, C/N, pH and temperature) on the variation of ARGs during composting. Composting was not effective in reducing most of the ARGs and intI1 and thus the LMDs compost is dangerous to the ecological environment.
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