Next Article in Journal
A Simulation-Based Study on the Comparison of Statistical and Time Series Forecasting Methods for Early Detection of Infectious Disease Outbreaks
Previous Article in Journal
Sludge Biochar Amendment and Alfalfa Revegetation Improve Soil Physicochemical Properties and Increase Diversity of Soil Microbes in Soils from a Rare Earth Element Mining Wasteland
Article

Biodegradation of Di-(2-ethylhexyl) Phthalate by Rhodococcus ruber YC-YT1 in Contaminated Water and Soil

1
Graduate School, Chinese Academy of Agricultural Sciences, Beijing 100081, China
2
Agricultural College of Guangdong Ocean University, Zhanjiang 524088, China
*
Author to whom correspondence should be addressed.
Int. J. Environ. Res. Public Health 2018, 15(5), 964; https://0-doi-org.brum.beds.ac.uk/10.3390/ijerph15050964
Received: 6 February 2018 / Revised: 29 April 2018 / Accepted: 3 May 2018 / Published: 11 May 2018
(This article belongs to the Section Environmental Science and Engineering)
Di-(2-ethylehxyl) phthalate (DEHP) is one of the most broadly representative phthalic acid esters (PAEs) used as a plasticizer in polyvinyl chloride (PVC) production, and is considered to be an endocrine-disrupting chemical. DEHP and its monoester metabolites are responsible for adverse effects on human health. An efficient DEHP-degrading bacterial strain Rhodococcus ruber YC-YT1, with super salt tolerance (0–12% NaCl), is the first DEHP-degrader isolated from marine plastic debris found in coastal saline seawater. Strain YC-YT1 completely degraded 100 mg/L DEHP within three days (pH 7.0, 30 °C). According to high-performance liquid chromatography–mass spectrometry (HPLC-MS) analysis, DEHP was transformed by strain YC-YT1 into phthalate (PA) via mono (2-ethylehxyl) phthalate (MEHP), then PA was used for cell growth. Furthermore, YC-YT1 metabolized initial concentrations of DEHP ranging from 0.5 to 1000 mg/L. Especially, YC-YT1 degraded up to 60% of the 0.5 mg/L initial DEHP concentration. Moreover, compared with previous reports, strain YC-YT1 had the largest substrate spectrum, degrading up to 13 kinds of PAEs as well as diphenyl, p-nitrophenol, PA, benzoic acid, phenol, protocatechuic acid, salicylic acid, catechol, and 1,2,3,3-tetrachlorobenzene. The excellent environmental adaptability of strain YC-YT1 contributed to its ability to adjust its cell surface hydrophobicity (CSH) so that 79.7–95.9% of DEHP-contaminated agricultural soil, river water, coastal sediment, and coastal seawater were remedied. These results demonstrate that R. ruber YC-YT1 has vast potential to bioremediate various DEHP-contaminated environments, especially in saline environments. View Full-Text
Keywords: biodegradation; di-(2-ethylhexyl) phthalate; Rhodococcus ruber; marine plastic debris; bioremediation biodegradation; di-(2-ethylhexyl) phthalate; Rhodococcus ruber; marine plastic debris; bioremediation
Show Figures

Figure 1

MDPI and ACS Style

Yang, T.; Ren, L.; Jia, Y.; Fan, S.; Wang, J.; Wang, J.; Nahurira, R.; Wang, H.; Yan, Y. Biodegradation of Di-(2-ethylhexyl) Phthalate by Rhodococcus ruber YC-YT1 in Contaminated Water and Soil. Int. J. Environ. Res. Public Health 2018, 15, 964. https://0-doi-org.brum.beds.ac.uk/10.3390/ijerph15050964

AMA Style

Yang T, Ren L, Jia Y, Fan S, Wang J, Wang J, Nahurira R, Wang H, Yan Y. Biodegradation of Di-(2-ethylhexyl) Phthalate by Rhodococcus ruber YC-YT1 in Contaminated Water and Soil. International Journal of Environmental Research and Public Health. 2018; 15(5):964. https://0-doi-org.brum.beds.ac.uk/10.3390/ijerph15050964

Chicago/Turabian Style

Yang, Ting, Lei Ren, Yang Jia, Shuanghu Fan, Junhuan Wang, Jiayi Wang, Ruth Nahurira, Haisheng Wang, and Yanchun Yan. 2018. "Biodegradation of Di-(2-ethylhexyl) Phthalate by Rhodococcus ruber YC-YT1 in Contaminated Water and Soil" International Journal of Environmental Research and Public Health 15, no. 5: 964. https://0-doi-org.brum.beds.ac.uk/10.3390/ijerph15050964

Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop