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Shen X, Chang H, Shao B, Sun F, Wu F. Occurrence and mass balance of sixty-two progestins in a municipal sewage treatment plant. WATER RESEARCH 2019; 165:114991. [PMID: 31442757 DOI: 10.1016/j.watres.2019.114991] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/12/2019] [Revised: 08/13/2019] [Accepted: 08/14/2019] [Indexed: 06/10/2023]
Abstract
Progestins (PGs) are a group of steroid hormones known to have endocrine-disrupting effects. These compounds can enter the aquatic environment via the discharge of treated or untreated wastewater and the disposal of sludge from sewage treatment plants (STPs); thus, their removal in STPs are of great importance. The present study simultaneously investigated the occurrences and fates of 62 PGs in a municipal STP in Beijing, China. Progesterone (P) and its metabolites were found to be the predominant compounds, with total dissolved concentrations of 1866 ng/L in the influent. About 11 P metabolites were newly detected, accounting for 25-55% and 75-91% of the total concentrations in wastewater and sludge, respectively. For the other three groups of PGs derived from different parent compounds, P derivatives were first detected in the STP with the highest concentration in the wastewater and sludge, followed by 19-nortestosterone (NT) derivatives and 17α-hydroxyprogesterone (17α-OHP) derivatives. The removal efficiencies in the dissolved phase of wastewater were relatively high for P and its metabolites (95-99%) and P derivatives (91-99%). And the relative persistence of NT (68-99%) and 17α-OHP derivatives (79-99%) was observed during the wastewater treatment processes. Mass balance analysis showed that the lost mass proportions were as high as 41-99%, the mass fractions in sludge were in the range of 0-55%, and 0.24-25% of the initial mass loadings was present in the effluent. These results indicated that biodegradation was the major removal mechanism of PGs in the STP.
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Affiliation(s)
- Xiaoyan Shen
- Beijing Key Lab for Source Control Technology of Water Pollution, College of Environmental Sciences & Engineering, Beijing Forestry University, Beijing, 100083, China
| | - Hong Chang
- Beijing Key Lab for Source Control Technology of Water Pollution, College of Environmental Sciences & Engineering, Beijing Forestry University, Beijing, 100083, China.
| | - Bing Shao
- Beijing Key Lab Diagnostic and Traceability Technologies for Food Poisoning, Beijing Center for Diseases Prevention and Control, Beijing, 100013, China
| | - Fuhong Sun
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing, 100012, China
| | - Fengchang Wu
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing, 100012, China
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Liu S, Ying GG, Liu YS, Peng FQ, He LY. Degradation of norgestrel by bacteria from activated sludge: comparison to progesterone. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2013; 47:10266-10276. [PMID: 23952780 DOI: 10.1021/es304688g] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Natural and synthetic progestagens in the environment have become a concern due to their adverse effects on aquatic organisms. Laboratory studies were performed to investigate aerobic biodegradation of norgestrel by bacteria from activated sludge in comparison with progesterone, and to identify their degradation products and biotransformation pathways. The degradation of norgestrel followed first order reaction kinetics (T1/2 = 12.5 d), while progesterone followed zero order reaction kinetics (T1/2 = 4.3 h). Four and eight degradation products were identified for norgestrel and progesterone, respectively. Six norgestrel-degrading bacterial strains (Enterobacter ludwigii, Aeromonas hydrophila subsp. dhakensis, Pseudomonas monteilii, Comamonas testosteroni, Exiguobacterium acetylicum, and Chryseobacterium indologenes) and one progesterone-degrading bacterial strain (Comamonas testosteroni) were successfully isolated from the enrichment culture inoculated with aerobic activated sludge. To our best knowledge, this is the first report on the biodegradation products and degrading bacteria for norgestrel under aerobic conditions.
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Affiliation(s)
- Shan Liu
- State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences , Guangzhou 510640, China
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Al-Hassan JM, Al-Awadi S, Oommen S, Alkhamis A, Afzal M. Tryptophan oxidative metabolism catalyzed by geobacillus stearothermophilus: a thermophile isolated from kuwait soil contaminated with petroleum hydrocarbons. Int J Tryptophan Res 2011; 4:1-6. [PMID: 22084599 PMCID: PMC3195220 DOI: 10.4137/ijtr.s6457] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Tryptophan metabolism has been extensively studied in humans as well as in soil. Its metabolism takes place mainly through kynurenine pathway yielding hydroxylated, deaminated and many other products of physiological significance. However, tryptophan metabolism has not been studied in an isolated thermophilic bacterium. Geobacillus stearothermophilus is a local thermophile isolated from Kuwait desert soil contaminated with petroleum hydrocarbons. The bacterium grows well at 65 °C in 0.05 M phosphate buffer (pH 7), when supplied with organic compounds as a carbon source and has a good potential for transformation of steroids and related molecules. In the present study, we used tryptophan ethyl ester as a carbon source for the bacterium to study the catabolism of the amino acid at pH 5 and pH 7. In this endeavor, we have resolved twenty one transformation products of tryptophan by GC/LC and have identified them through their mass spectral fragmentation.
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Affiliation(s)
- Jassim M Al-Hassan
- Department of Biological Sciences, Faculty of Science, Kuwait University, Safat, 13060, Kuwait
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4
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Eshrat GF, Aroona C. Biotransformation of Progesterone by Penicillium aurantiogriseum. ACTA ACUST UNITED AC 2011. [DOI: 10.3923/jm.2011.98.104] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Yousefi M, Mohammadi M, Habibi Z, Shafiee A. Biotransformation of Progesterone byAcremonium chrysogenumandAbsidia griseollavar. igachii. BIOCATAL BIOTRANSFOR 2010. [DOI: 10.3109/10242422.2010.500723] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Al-Tamimi S, Al-Awadi S, Oommen S, Afzal M. Modification of progesterone and testosterone by a food-borne thermophile Geobacillus kaustophilus. Int J Food Sci Nutr 2010; 61:78-86. [PMID: 19961354 DOI: 10.3109/09637480903292619] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
The present work was carried out to study structural modification of steroids by Geobacillus kaustophilus, a bacterial thermophile present in milk and the environment. Incubation of progesterone and testosterone with G. kaustophilus at 65 degrees C resulted in oxygenated steroid nuclei. The oxygenation of the steroid molecule was stereo specific. Seven metabolites of progesterone horizontal line 6beta/6alpha-hydroxytestosterone, 20-hydroxyprogesterone, 6beta-/6alpha-20-dihydroxyprogesterone, 5alpha-pregnane-3,6,20-trione, and 3beta-hydroxy-5alpha-pregnane-6,20-dione horizontal line were identified. Four compounds horizontal line namely, 66-/6--hydroxytestosterone and 6beta/6alpha-hydroxyandrostenedione horizontal line and androst-4-en-3,17-dione were identified as testosterone metabolites. This shows that G. kaustophilus is capable of modifying steroid nuclei at elevated temperatures. G. kaustophilus is a stable thermophile first isolated from milk. Our results show that endogenous steroids present in milk can be modified by G. kaustophilus, causing detrimental effect on human health.
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Affiliation(s)
- Safa Al-Tamimi
- Department of Biological Sciences, Faculty of Science, Kuwait University, Kuwait
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7
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Antioxidant activity of biotransformed sex hormones facilitated by Bacillus stearothermophilus. Methods Mol Biol 2010. [PMID: 20072930 DOI: 10.1007/978-1-60761-411-1_25] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
Abstract
Bacillus stearothermophilus, a thermophilic bacterium isolated from Kuwaiti desert, when incubated with exogenous progesterone for 10 days at 65 degrees C produced two monohydroxylated, two dihydroxy isomers of progesterone and a B-Seco compound. These metabolites were purified by TLC and HPLC followed by their identification through (1)H, (13)C NMR and other spectroscopic data. Microbial hydroxylation of 17beta-estradiol resulted in the production of estrone. The effect of some inducers resulted in the production of two metabolites from 17beta-estradiol one of which was identified as 3,6beta,17beta-trihydroxyestra-1,3,5,14(10)-tetrene and the other metabolite remained unidentified. The transformation products were identified through their spectral data and comparison with reference to compounds. Antioxidant activities of progesterone transformed mixture and purified metabolites of 17beta-estradiol were studied by linoleic acid/beta-carotene assay. An enhanced antioxidant activity for progesterone transformation products was observed, when compared to progesterone. A comparison of antioxidant activity of progesterone and 17beta-estradiol transformation products is reported.
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8
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Al-Awadi S, Afzal M, Oommen S. Studies onGeobacillus stearothermophilus– Part V: Transformation of 11α-hydroxyprogesterone. BIOCATAL BIOTRANSFOR 2009. [DOI: 10.1080/10242420500285710] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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9
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Al-Awadi S, Afzal M, Oommen S. Studies onGeobacillus stearothermophilus-Part V1: Transformation of 17α-hydroxyprogesterone and 21-hydroxyprogesterone. BIOCATAL BIOTRANSFOR 2009. [DOI: 10.1080/10242420600906330] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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10
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Antioxidant activity of biotransformed sex hormones facilitated by Bacillus stearothermophilus. Methods Mol Biol 2008. [PMID: 19082955 DOI: 10.1007/978-1-60327-517-0_22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
Abstract
Bacillus stearothermophilus, a thermophilic bacterium isolated from Kuwaiti desert, when incubated with exogenous progesterone for 10 days at 65 degrees C produced two monohydroxylated, two dihydroxy isomers of progesterone and a B-Seco compound. These metabolites were purified by TLC and HPLC followed by their identification through (1)H, (13)C NMR and other spectroscopic data. Microbial hydroxylation of 17beta-estradiol resulted in the production of estrone. The effect of some inducers resulted in the production of two metabolites from 17beta-estradiol, one of which was identified as 3,6beta,17beta-trihydroxyestra-1,3,5,14(10)-tetrene and the other metabolite remains unidentified. The transformation products were identified through their spectral data and comparison with reference compounds. Antioxidant activities of progesterone transformed mixture and purified metabolites of 17beta-estradiol were studied by linoleic acid/beta-carotene assay. An enhanced antioxidant activity for progesterone transformation products was observed when compared to progesterone. A comparison of antioxidant activity of progesterone and 17beta-estradiol transformation products is reported.
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Hunter AC, Mills PW, Dedi C, Dodd HT. Predominant allylic hydroxylation at carbons 6 and 7 of 4 and 5-ene functionalized steroids by the thermophilic fungus Rhizomucor tauricus IMI23312. J Steroid Biochem Mol Biol 2008; 108:155-63. [PMID: 17981459 DOI: 10.1016/j.jsbmb.2007.09.022] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/03/2007] [Revised: 09/19/2007] [Accepted: 09/19/2007] [Indexed: 11/30/2022]
Abstract
This paper demonstrates for the first time transformation of a series of steroids (progesterone, androst-4-en-3,17-dione, testosterone, pregnenolone and dehydroepiandrosterone) by the thermophilic fungus Rhizomucor tauricus. All transformations were found to be oxidative (monohydroxylation and dihydroxylation) with allylic hydroxylation the predominant route of attack functionalizing the steroidal skeleta. Timed experiments demonstrated that dihydroxylation of progesterone, androst-4-en-3,17-dione and pregnenolone all initiated with hydroxylation on ring-B followed by attack on ring-C. Similar patterns of steroidal transformation to those observed with R. tauricus have been observed with some species of thermophilic Bacilli and mesophilic fungi. All metabolites were isolated by column chromatography and were identified by (1)H, (13)C NMR, DEPT analysis and other spectroscopic data. The application of thermophilic fungi to steroid transformation may represent a potentially rich source for the generation of new steroidal compounds as well as for uncovering inter and intraspecies similarities and differences in steroid metabolism.
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Affiliation(s)
- A Christy Hunter
- Molecular Targeting and Polymer Toxicology Group, School of Pharmacy, University of Brighton, Lewes Road, Brighton, East Sussex, UK.
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Akihisa T, Watanabe K, Yoneima R, Suzuki T, Kimura Y. Biotransformation of cycloartane-type triterpenes by the fungus Glomerella fusarioides. JOURNAL OF NATURAL PRODUCTS 2006; 69:604-7. [PMID: 16643035 DOI: 10.1021/np058120d] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
Biotransformation of three cycloartane-type triterpenes, cycloartenol (1), 24-methylenecycloartanol (2), and cycloartenone (3), by the fungus Glomerella fusarioides was studied. Compound 1 was converted to 3, cycloart-25-ene-3beta,24-diol (4), and cycloartane-3beta,24,25-triol (5). Compound 2 was metabolized to cycloeucalenol (6) and two new compounds, 24-methylcycloartane-3beta,24,24(1)-triol (7) and 24(1)-methoxy-24-methylcycloartane-3beta,24-diol (8). Compound 3 was converted into two new metabolites, 4alpha,4beta,14alpha-trimethyl-9beta,19-cyclopregnane-3,20-dione (9) and 25-hydroxy-24-methoxycycloartan-3-one (14), and four known compounds, viz., cycloartane-3,24-dione (10), 24-hydroxycycloart-25-en-3-one (11), (23E)-25-hydroxycycloart-23-en-3-one (12), and 24,25-dihydroxycycloartan-3-one (13). The structures of four new metabolites, 7, 8, 9, and 14, were established by spectroscopic methods.
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Affiliation(s)
- Toshihiro Akihisa
- College of Science and Technology, Nihon University, 1-8 Kanda Surugadai, Chiyoda-ku, Tokyo 101-8308, Japan.
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Al-Awadi S, Afzal M, Oommen S. Studies on Bacillus stearothermophilus. Part IV. Influence of enhancers on biotransformation of testosterone. Steroids 2005; 70:327-33. [PMID: 15784287 DOI: 10.1016/j.steroids.2004.12.003] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/19/2004] [Revised: 12/01/2004] [Accepted: 12/07/2004] [Indexed: 10/25/2022]
Abstract
The impact of chemical enhancers on the biotransformation of testosterone has been exploited. Application of crude cell concentrates to produce Bacillus stearothermophilus-mediated bioconversion of testosterone at 65 degrees C for 72 h has been examined. After incubation, the xenobiotic substrate was added to the concentrated whole cell suspensions. The enhancer molecules were included in the whole cell suspension. The resultant products, after extraction into an organic solvent, were purified by thin layer chromatography and identification was carried out through spectroscopic data. Five steroid metabolites 9,10-seco-4-androstene-3,9,17-trione, 5alpha-androstan-3,6,17-trione, 17beta-hydroxy-5alpha-androstan-3,6-dione, 3beta,17beta-dihydroxyandrost-4-ene-6-one and 17beta-hydroxyandrost-4,6-diene-3-one were identified as biotransformation products of testosterone. A possible biosynthetic route for these bioconversion products is postulated.
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Affiliation(s)
- S Al-Awadi
- Department of Biological Sciences, Biochemistry Program, Faculty of Science, Kuwait University, P.O. Box 5969, Safat-13060, Kuwait
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