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Bea-Ven Chang
Department of Microbiology, Soochow University, Taipei 11102, Taiwan

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Journal article
Published: 26 April 2021 in Applied Sciences
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Organic UV filters in sunscreen products are released to aquatic ecosystems through human recreational activities and urban wastewater treatment plant effluents. The biodegradation of three organic UV filters, 2-ethylhexyl salicylate (EHS), homosalate (HMS) and ethylhexyl methoxycinnamate (EHMC), which cannot be effectively removed by conventional wastewater treatment plants, was investigated in this study. Spent mushroom compost (SMC), a waste product of the mushroom industry, which contains white-rot fungus extracellular enzymes, was tested for its ability to remove the three organic UV filters. The results of batch experiments revealed that the SMC enzyme extract of Pleurotus djamor exhibited the highest ability for EHS and HMS removal. The results of bioreactor experiments indicated that direct application of SMCs may be a feasible solution to remove EHS and HMS from urban wastewater. The application of SMCs for the removal of organic UV filters can be developed into a green and sustainable technology.

ACS Style

Chu-Wen Yang; Ping-Hsun Tu; Wen-Yi Tso; Bea-Ven Chang. Removal of Organic UV Filters Using Enzymes in Spent Mushroom Composts from Fungicultures. Applied Sciences 2021, 11, 3932 .

AMA Style

Chu-Wen Yang, Ping-Hsun Tu, Wen-Yi Tso, Bea-Ven Chang. Removal of Organic UV Filters Using Enzymes in Spent Mushroom Composts from Fungicultures. Applied Sciences. 2021; 11 (9):3932.

Chicago/Turabian Style

Chu-Wen Yang; Ping-Hsun Tu; Wen-Yi Tso; Bea-Ven Chang. 2021. "Removal of Organic UV Filters Using Enzymes in Spent Mushroom Composts from Fungicultures." Applied Sciences 11, no. 9: 3932.

Journal article
Published: 04 February 2021 in Water
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Intensive fish farming through aquaculture is vulnerable to infectious diseases that can increase fish mortality and damage the productivity of aquaculture farms. To prevent infectious diseases, malachite green (MG) has been applied as a veterinary drug for various microbial infections in aquaculture settings worldwide. However, little is known regarding the consequences of MG and MG-degrading bacteria (MGDB) on microbial communities in milkfish culture ponds (MCPs). In this study, small MCPs were used as a model system to determine the effects of MG on the microbial communities in MCPs. The addition of MG led to cyanobacterial blooms in the small MCP. The addition of MGDB could not completely reverse the effects of MG on microbial communities. Cyanobacterial blooms were not prevented. Microbial communities analyzed by next generation sequencing revealed that cyanobacterial blooms may be due to increase of nitrogen cycle (including nitrogen fixation, nitrate reduction and anammox) associated microbial communities, which raised the levels of ammonium in the water of the small MCP. The communities of anoxygenic phototrophic bacteria (beneficial for aquaculture and aquatic ecosystems) decreased after the addition of MG. The results of this investigation provide valuable insights into the effects of MG in aquaculture and the difficulties of bioremediation for aquatic environments polluted by MG.

ACS Style

Chu-Wen Yang; Yi-Tang Chang; Chi-Yen Hsieh; Bea-Ven Chang. Effects of Malachite Green on the Microbiomes of Milkfish Culture Ponds. Water 2021, 13, 411 .

AMA Style

Chu-Wen Yang, Yi-Tang Chang, Chi-Yen Hsieh, Bea-Ven Chang. Effects of Malachite Green on the Microbiomes of Milkfish Culture Ponds. Water. 2021; 13 (4):411.

Chicago/Turabian Style

Chu-Wen Yang; Yi-Tang Chang; Chi-Yen Hsieh; Bea-Ven Chang. 2021. "Effects of Malachite Green on the Microbiomes of Milkfish Culture Ponds." Water 13, no. 4: 411.

Journal article
Published: 30 July 2020 in Water
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The removal of antibiotics from the aquatic environment has received great interest. The aim of this study is to examine degradation of oxytetracycline (OTC), tetracycline (TC), chlortetracycline (CTC), amoxicillin (AMO), sulfamethazine (SMZ), sulfamethoxazole (SMX), sulfadimethoxine (SDM) in sludge. Four antibiotic-degrading bacterial strains, SF1 (Pseudmonas sp.), A12 (Pseudmonas sp.), strains B (Bacillus sp.), and SANA (Clostridium sp.), were isolated, identified and tested under aerobic and anaerobic conditions in this study. Batch experiments indicated that the addition of SF1 and A12 under aerobic conditions and the addition of B and SANA under anaerobic conditions increased the biodegradation of antibiotics in sludge. Moreover, the results of repeated addition experiments indicated that the efficiency of the biodegradation of antibiotics using the isolated bacterial strains could be maintained for three degradation cycles. Two groups of potential microbial communities associated with the aerobic and anaerobic degradation of SMX, AMO and CTC in sludge were revealed. Twenty-four reported antibiotics-degrading bacterial genera (Achromobacter, Acidovorax, Acinetobacter, Alcaligenes, Bacillus, Burkholderia, Castellaniella, Comamonas, Corynebacterium, Cupriavidus, Dechloromonas, Geobacter, Gordonia, Klebsiella, Mycobacterium, Novosphingobium, Pandoraea, Pseudomonas, Rhodococcus, Sphingomonas, Thauera, Treponema, Vibrio and Xanthobacter) were found in both the aerobic and anaerobic groups, suggesting that these 24 bacterial genera may be the major antibiotic-degrading bacteria in sludge.

ACS Style

Chu-Wen Yang; Chien Liu; Bea-Ven Chang. Biodegradation of Amoxicillin, Tetracyclines and Sulfonamides in Wastewater Sludge. Water 2020, 12, 2147 .

AMA Style

Chu-Wen Yang, Chien Liu, Bea-Ven Chang. Biodegradation of Amoxicillin, Tetracyclines and Sulfonamides in Wastewater Sludge. Water. 2020; 12 (8):2147.

Chicago/Turabian Style

Chu-Wen Yang; Chien Liu; Bea-Ven Chang. 2020. "Biodegradation of Amoxicillin, Tetracyclines and Sulfonamides in Wastewater Sludge." Water 12, no. 8: 2147.

Journal article
Published: 04 July 2020 in Sustainability
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Acetaminophen (ACE) is a widely used medicine. Currently, concerns regarding its potential adverse effects on the environments are raised. The aim of this study was to evaluate ACE biodegradation in mangrove sediments under aerobic and anaerobic conditions. Three ACE biodegradation strategies in mangrove sediments were tested. The degradation half-lives (t1/2) of ACE in the sediments with spent mushroom compost under aerobic conditions ranged from 3.24 ± 0.16 to 6.25 ± 0.31 d. The degradation half-lives (t1/2) of ACE in sediments with isolated bacterial strains ranged from 2.54 ± 0.13 to 3.30 ± 0.17 d and from 2.62 ± 0.13 to 3.52 ± 0.17 d under aerobic and anaerobic conditions, respectively. The degradation half-lives (t1/2) of ACE in sediments amended with NaNO3, Na2SO4 and NaHCO3 under anaerobic conditions ranged from 1.16 ± 0.06 to 3.05 ± 0.15 d, 2.39 ± 0.12 to 3.84 ± 0.19 d and 2.79 ± 0.14 to 10.75 ± 0.53 d, respectively. The addition of the three electron acceptors enhanced ACE degradation in mangrove sediments, where NaNO3 yielded the best effects. Sixteen microbial genera were identified as the major members of microbial communities associated in anaerobic ACE degradation in mangrove sediments with addition of NaNO3 and Na2SO4. Three (Arthrobacter, Enterobacter and Bacillus) of the sixteen microbial genera were identified in the isolated ACE-degrading bacterial strains.

ACS Style

Chu-Wen Yang; Yi-En Chen; Bea-Ven Chang. Microbial Communities Associated with Acetaminophen Biodegradation from Mangrove Sediment. Sustainability 2020, 12, 5410 .

AMA Style

Chu-Wen Yang, Yi-En Chen, Bea-Ven Chang. Microbial Communities Associated with Acetaminophen Biodegradation from Mangrove Sediment. Sustainability. 2020; 12 (13):5410.

Chicago/Turabian Style

Chu-Wen Yang; Yi-En Chen; Bea-Ven Chang. 2020. "Microbial Communities Associated with Acetaminophen Biodegradation from Mangrove Sediment." Sustainability 12, no. 13: 5410.

Journal article
Published: 24 September 2019 in Applied Sciences
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To cope with bacterial infections, broad-spectrum antibiotics such as sulfonamides have been largely used for intensive coastal aquaculture. Sulfonamides are stable and difficult to remove by conventional wastewater treatment. Environmental pollution will occur if sulfonamide-containing aquaculture wastewater is discharged into rivers and oceans. In this study, high salinity-tolerant bacterial strains A12 and L with sulfamethoxazole (SMX)-degrading ability from milkfish (Chanos chanos) culture pond sediments with SMX were isolated, identified, and characterized. The degradation of SMX and the changes in the bacterial community in milkfish culture pond sediments were assessed. Phylogenetic analysis using 16S rRNA gene sequences suggested that bacterial strain A12 was very close (99% sequence identity) to Vibrio sp., and bacterial strain L was very close (99% sequence identity) to Pseudomonas sp. Aerobic and anaerobic batch and continuous SMX addition experiments indicated that bacterial strains A12 and L could enhance SMX degradation in milkfish culture pond sediments. Different microbial community compositions under aerobic and anaerobic conditions exhibited different SMX-degrading abilities. The results of this study suggest that bacterial strains A12 and L provide a solution for treatment of wastewater and sediment from SMX-contaminated high salinity milkfish culture ponds.

ACS Style

Bea-Ven Chang; Wei-Liang Chao; Shinn-Lih Yeh; Dong-Lin Kuo; Chu-Wen Yang. Biodegradation of Sulfamethoxazole in Milkfish (Chanos chanos) Pond Sediments. Applied Sciences 2019, 9, 4000 .

AMA Style

Bea-Ven Chang, Wei-Liang Chao, Shinn-Lih Yeh, Dong-Lin Kuo, Chu-Wen Yang. Biodegradation of Sulfamethoxazole in Milkfish (Chanos chanos) Pond Sediments. Applied Sciences. 2019; 9 (19):4000.

Chicago/Turabian Style

Bea-Ven Chang; Wei-Liang Chao; Shinn-Lih Yeh; Dong-Lin Kuo; Chu-Wen Yang. 2019. "Biodegradation of Sulfamethoxazole in Milkfish (Chanos chanos) Pond Sediments." Applied Sciences 9, no. 19: 4000.

Journal article
Published: 02 August 2019 in Sustainability
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Malachite green (MG) is usually applied as a biocide in aquaculture worldwide. The microbial degradation of MG and changes in the microbial community composition of milkfish (Chanos chanos) culture pond sediments were assessed in this study. Three MG-degrading bacteria strains—M6, M10, and M12—were isolated, identified, and characterized. Strains M6, M10, and M12 are closely related to Zhouia amylolytica, Tenacibaculum mesophilum, and Enterobacter cloacae, respectively. The bacterial strains M10 and M12 showed good ability to degrade MG in the sediment. The MG degradation rate was increased after adding MG three more times. The microbial community in the sediment changes with different treatments. The bacterial strains M10 and M12 provide a potential solution for the treatment of sediment of saline aquaculture ponds with MG contamination.

ACS Style

Chu-Wen Yang; Wei-Liang Chao; Chi-Yen Hsieh; Bea-Ven Chang. Biodegradation of Malachite Green in Milkfish Pond Sediments. Sustainability 2019, 11, 4179 .

AMA Style

Chu-Wen Yang, Wei-Liang Chao, Chi-Yen Hsieh, Bea-Ven Chang. Biodegradation of Malachite Green in Milkfish Pond Sediments. Sustainability. 2019; 11 (15):4179.

Chicago/Turabian Style

Chu-Wen Yang; Wei-Liang Chao; Chi-Yen Hsieh; Bea-Ven Chang. 2019. "Biodegradation of Malachite Green in Milkfish Pond Sediments." Sustainability 11, no. 15: 4179.

Journal article
Published: 28 March 2019 in Sustainability
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Globally, coastal aquaculture is growing due to the large demand for marine products. Specific impacts caused by coastal aquaculture on the environment include the discharge of culture farm effluents, stress on ground water (the absence of recycling), nutrient pollution, and diseases of cultured animals. Three methods, integrated multitrophic aquaculture (IMTA), recirculating aquaculture system (RAS), and beneficial bacteria for aquaculture, have been developed to solve these problems. In this study, the advantages of IMTA and RAS were integrated to develop a novel multitrophic recirculating aquaculture system (MRAS) to adapt to the farm-scale culturing of milkfish (Chanos chanos). The photosynthetic bacteria Rhodovulum sulfidophilum was added to enhance the performance of the farm-scale milkfish MRAS. This setting could promote growth of beneficial bacteria, such as the nitrogen cycle-associated microbial community and the anoxygenic phototrophic Acidobacteria community. The ammonia level was reduced, and the total phosphorous level was stable in the water recycled in the MRAS. The cyanobacteria, algae, Vibrio, Escherichia, and other potential pathogenic bacteria communities were inhibited in the MRAS. This study provides an effective design of a water recycling aquaculture system. Milkfish, Asian tiger shrimp (Penaeus monodon), Asian hard clam (Meretrix lusoria), and seaweed (Gracilaria sp.) can be cultured and simultaneously produced in the system.

ACS Style

Bea-Ven Chang; Chien-Sen Liao; Yi-Tang Chang; Wei-Liang Chao; Shinn-Lih Yeh; Dong-Lin Kuo; Chu-Wen Yang. Investigation of a Farm-scale Multitrophic Recirculating Aquaculture System with the Addition of Rhodovulum sulfidophilum for Milkfish (Chanos chanos) Coastal Aquaculture. Sustainability 2019, 11, 1880 .

AMA Style

Bea-Ven Chang, Chien-Sen Liao, Yi-Tang Chang, Wei-Liang Chao, Shinn-Lih Yeh, Dong-Lin Kuo, Chu-Wen Yang. Investigation of a Farm-scale Multitrophic Recirculating Aquaculture System with the Addition of Rhodovulum sulfidophilum for Milkfish (Chanos chanos) Coastal Aquaculture. Sustainability. 2019; 11 (7):1880.

Chicago/Turabian Style

Bea-Ven Chang; Chien-Sen Liao; Yi-Tang Chang; Wei-Liang Chao; Shinn-Lih Yeh; Dong-Lin Kuo; Chu-Wen Yang. 2019. "Investigation of a Farm-scale Multitrophic Recirculating Aquaculture System with the Addition of Rhodovulum sulfidophilum for Milkfish (Chanos chanos) Coastal Aquaculture." Sustainability 11, no. 7: 1880.

Journal article
Published: 28 December 2018 in Sustainability
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Tetrabromobisphenol-A (TBBPA) is a pollutant which has a devastating impact on our environment and should be removed from earth. This research aims to evaluate the aerobic and anaerobic TBBPA degradation and bacterial community changes in mangrove sediments. TBBPA degradation in the sediments was enhanced with a microcapsuled enzyme extract of spent mushroom compost (MC) under aerobic conditions and with zerovalent iron under anaerobic conditions. The TBBPA aerobic or anaerobic degradation rates were enhanced for three time additions. Four bacterial genera (Bacillus, Erythrobacter, Pseudomonas, Rhodococcus) were associated with TBBPA aerobic degradation; and four other bacterial genera (Desulfovibrio, Pseudomonas, Sphaerochaeta, Sphingomonas) were associated with TBBPA anaerobic degradation in the sediment. Moreover, nine methanogens were identified under anaerobic conditions that might also be involved in TBBPA anaerobic degradation in the sediment. Our results demonstrate two feasible methods toward TBBPA bioremediation for mangrove sediments under aerobic and anaerobic conditions.

ACS Style

Chu-Wen Yang; Chien-Sen Liao; His Ku; Bea-Ven Chang. Biodegradation of Tetrabromobisphenol-A in Mangrove Sediments. Sustainability 2018, 11, 151 .

AMA Style

Chu-Wen Yang, Chien-Sen Liao, His Ku, Bea-Ven Chang. Biodegradation of Tetrabromobisphenol-A in Mangrove Sediments. Sustainability. 2018; 11 (1):151.

Chicago/Turabian Style

Chu-Wen Yang; Chien-Sen Liao; His Ku; Bea-Ven Chang. 2018. "Biodegradation of Tetrabromobisphenol-A in Mangrove Sediments." Sustainability 11, no. 1: 151.

Journal article
Published: 04 July 2018 in Science of The Total Environment
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The effects of sucrose and electron acceptors on the anaerobic degradation of sulfamethoxazole (SMX) in mangrove sediments were investigated in this study. Among three sulfonamides, sulfamethoxazole, sulfadimethoxine and sulfamethazine, only SMX could be completely degraded in mangrove sediments. Degradation of SMX was enhanced by the addition of sucrose to the sediments. The degradation rates of SMX were increased in bioreactor experiments with sucrose. The addition of electron acceptors (sodium hydrogen carbonate, sodium sulfate, and sodium nitrate) could further enhance SMX degradation. The order of anaerobic SMX degradation rates under three different conditions was as follows: sulfate-reducing conditions > methanogenic conditions > nitrate-reducing conditions. Methanolobus, Desulfuromonas, and Thauera were found in the highest proportions among methanogens, sulfate-reducing bacteria and denitrifying bacteria, respectively. Achromobacter, Brevundimonas, Delftia, Idiomarina, Pseudomonas, and Rhodopirellula were the major bacterial communities responsible for SMX degradation in the sediment. Overall, 16 bacterial and archaeal genera were identified as the core microbial community facilitating anaerobic SMX degradation for all methanogenic, sulfate-reducing and nitrate-reducing conditions. The results of this study provide feasible methods for the removal of SMX from mangrove sediments.

ACS Style

Chu-Wen Yang; Li-Ling Tsai; Bea-Ven Chang. Anaerobic degradation of sulfamethoxazole in mangrove sediments. Science of The Total Environment 2018, 643, 1446 -1455.

AMA Style

Chu-Wen Yang, Li-Ling Tsai, Bea-Ven Chang. Anaerobic degradation of sulfamethoxazole in mangrove sediments. Science of The Total Environment. 2018; 643 ():1446-1455.

Chicago/Turabian Style

Chu-Wen Yang; Li-Ling Tsai; Bea-Ven Chang. 2018. "Anaerobic degradation of sulfamethoxazole in mangrove sediments." Science of The Total Environment 643, no. : 1446-1455.

Research article
Published: 27 January 2018 in Environmental Science and Pollution Research
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Mangroves represent a special coastal vegetation along the coastlines of tropical and subtropical regions. Sulfonamide antibiotics (SAs) are the most commonly used antibiotics. The application of white-rot fungi extracellular enzyme-containing microcapsules (MC) for aerobic degradation of SAs in mangrove sediments was investigated in this study. Degradation of three SAs, sulfamethoxazole (SMX), sulfadimethoxine (SDM), and sulfamethazine (SMZ), was enhanced by adding MC to the sediments. The order of SA degradation in batch experiments was SMX > SDM > SMZ. Bioreactor experiments revealed that SA removal rates were higher with than without MC. The enhanced SA removal rates with MC persisted with three re-additions of SAs. Thirteen bacteria genera (Achromobacter, Acinetobacter, Alcaligenes, Aquamicrobium, Arthrobacter, Brevundimonas, Flavobacterium, Methylobacterium, Microbacterium, Oligotropha, Paracoccus, Pseudomonas, and Rhodococcus) were identified to be associated with SA degradation in mangrove sediments by combination of next-generation sequencing, bacterial strain isolation, and literature search results. Results of this study suggest that MC could be used for SA removal in mangrove sediments.

ACS Style

Chu-Wen Yang; Li-Ling Tsai; Bea-Ven Chang. Fungi extracellular enzyme-containing microcapsules enhance degradation of sulfonamide antibiotics in mangrove sediments. Environmental Science and Pollution Research 2018, 25, 10069 -10079.

AMA Style

Chu-Wen Yang, Li-Ling Tsai, Bea-Ven Chang. Fungi extracellular enzyme-containing microcapsules enhance degradation of sulfonamide antibiotics in mangrove sediments. Environmental Science and Pollution Research. 2018; 25 (10):10069-10079.

Chicago/Turabian Style

Chu-Wen Yang; Li-Ling Tsai; Bea-Ven Chang. 2018. "Fungi extracellular enzyme-containing microcapsules enhance degradation of sulfonamide antibiotics in mangrove sediments." Environmental Science and Pollution Research 25, no. 10: 10069-10079.

Original articles
Published: 10 October 2017 in Environmental Technology
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The objective of this study was to evaluate the anaerobic degradation of sulfamethoxazole (SMX) and the associated bacterial community changes in swine and sewage sludges. The degradation rate of SMX was higher in swine sludge than in sewage sludge. The addition of lactate, citrate, and sucrose had significant effects on SMX degradation, and sucrose addition yielded a higher SMX degradation rate than the other additives. At concentrations of 0.1–10 g/l sucrose, the SMX degradation rates increased in the sludge. The bacterial genera from swine sludge with sucrose exhibited the highest SMX degrading efficiency. Seventeen bacterial genera were found to be the major bacterial community members involved in SMX degradation in the sludge.

ACS Style

Chu-Hsi Fan; Chu-Wen Yang; Bea-Ven Chang. Anaerobic degradation of sulfamethoxazole by mixed cultures from swine and sewage sludge. Environmental Technology 2017, 40, 210 -218.

AMA Style

Chu-Hsi Fan, Chu-Wen Yang, Bea-Ven Chang. Anaerobic degradation of sulfamethoxazole by mixed cultures from swine and sewage sludge. Environmental Technology. 2017; 40 (2):210-218.

Chicago/Turabian Style

Chu-Hsi Fan; Chu-Wen Yang; Bea-Ven Chang. 2017. "Anaerobic degradation of sulfamethoxazole by mixed cultures from swine and sewage sludge." Environmental Technology 40, no. 2: 210-218.

Journal article
Published: 01 April 2017 in International Biodeterioration & Biodegradation
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The objective of this study was to evaluate the degradation of tetrabromobisphenol-A (TBBPA) in sludge with spent mushroom compost (SMC). The TBBPA degradation rates were enhanced by addition of either SMC, SMC extract or extract-containing microcapsule, with SMC showing the highest TBBPA degradation rate in sludge. Bioreactor experiments revealed that the TBBPA removal rates in sludge with SMC were higher than in sludge alone. The TBBPA removal rates were enhanced with SMC when TBBPA was added in two portions. The bacterial composition differed in sludge with and without SMC. Geobacter and Mycobacterium were the major bacteria responsible for TBBPA degradation in sludge. This research offers feasible methods for the removal of TBBPA from sludge.

ACS Style

Chu-Wen Yang; Wei-Zhi Chen; Bea-Ven Chang. Biodegradation of tetrabromobisphenol-A in sludge with spent mushroom compost. International Biodeterioration & Biodegradation 2017, 119, 387 -395.

AMA Style

Chu-Wen Yang, Wei-Zhi Chen, Bea-Ven Chang. Biodegradation of tetrabromobisphenol-A in sludge with spent mushroom compost. International Biodeterioration & Biodegradation. 2017; 119 ():387-395.

Chicago/Turabian Style

Chu-Wen Yang; Wei-Zhi Chen; Bea-Ven Chang. 2017. "Biodegradation of tetrabromobisphenol-A in sludge with spent mushroom compost." International Biodeterioration & Biodegradation 119, no. : 387-395.

Journal article
Published: 13 July 2016 in Environmental Science and Pollution Research
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This study investigated the degradation of sulfonamide antibiotics (SAs) and microbial community changes in sludge-amended soil. In batch experiments, SA degradation was enhanced by addition of spent mushroom compost (SMC), SMC extract, and extract-containing microcapsule, with SMC showing higher SA degradation rate than the other additives in soil-sludge mixtures. In bioreactor experiments, the degradation of SAs in soil-sludge mixtures was in the order of sulfamethoxazole > sulfadimethoxine > sulfamethazine during four times of SA addition. SA removal was higher in soil-sludge mixtures than in soil alone. The bacterial composition differed in soil-sludge mixtures with and without SMC. In total, 44 differentially distributed bacterial genera were identified from different experimental settings and stages. Four bacterial genera, Acinetobacter, Alcaligenes, Brevundimonas, and Pseudomonas, were previously found involved in SA degradation, and 20 of the 44 bacterial genera were previously found in aromatic hydrocarbon degradation. Therefore, these bacteria have high potential to be SA degradation bacteria in this study.

ACS Style

Chu-Wen Yang; Wan-Chun Hsiao; Chu-Hsih Fan; Bea-Ven Chang. Bacterial communities associated with sulfonamide antibiotics degradation in sludge-amended soil. Environmental Science and Pollution Research 2016, 23, 19754 -19763.

AMA Style

Chu-Wen Yang, Wan-Chun Hsiao, Chu-Hsih Fan, Bea-Ven Chang. Bacterial communities associated with sulfonamide antibiotics degradation in sludge-amended soil. Environmental Science and Pollution Research. 2016; 23 (19):19754-19763.

Chicago/Turabian Style

Chu-Wen Yang; Wan-Chun Hsiao; Chu-Hsih Fan; Bea-Ven Chang. 2016. "Bacterial communities associated with sulfonamide antibiotics degradation in sludge-amended soil." Environmental Science and Pollution Research 23, no. 19: 19754-19763.

Journal article
Published: 01 June 2016 in Ecological Engineering
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This study investigated the degradation of tetrabromobisphenol-A (TBBPA) and changes in the bacterial community in sludge-amended soil. The results indicated that TBBPA degradation was enhanced by spent mushroom compost (SMC), enzyme extract (EE) and extract-containing microcapsule (MC) in soil–sludge mixtures, with SMC showing a greater TBBPA degradation rate than the other additives. The TBBPA degradation rates were enhanced with SMC at the second and third additions. The bacterial composition differed in the soil–sludge mixtures with and without SMC. Bacillus, Flavobacterium, Geobacter, Mycobacterium, Pseudomonas, Rhodococcus, Sphingomonas and Streptococcus were major bacterial communities in TBBPA degradation in the soil–sludge mixtures.

ACS Style

Chu-Wen Yang; Wei-Zhi Chen; Bea-Ven Chang. Biodegradation of tetrabromobisphenol-A in sludge-amended soil. Ecological Engineering 2016, 91, 143 -147.

AMA Style

Chu-Wen Yang, Wei-Zhi Chen, Bea-Ven Chang. Biodegradation of tetrabromobisphenol-A in sludge-amended soil. Ecological Engineering. 2016; 91 ():143-147.

Chicago/Turabian Style

Chu-Wen Yang; Wei-Zhi Chen; Bea-Ven Chang. 2016. "Biodegradation of tetrabromobisphenol-A in sludge-amended soil." Ecological Engineering 91, no. : 143-147.

Journal article
Published: 01 May 2016 in Chemosphere
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Sulfonamide antibiotics are widely used in human and veterinary medicine. This study assessed the degradation of three sulfonamides (100 mg kg−1 each of sulfamethoxazole, sulfadimethoxine and sulfamethazine) and changes in the microbial communities of sewage sludge. Sulfamethoxazole degradation was enhanced by spent mushroom compost (SMC), SMC extract, and extract-containing microcapsules in the sludge. The degradation of sulfonamides in sludge and SMC mixtures occurred in the order of sulfamethoxazole > sulfadimethoxine > sulfamethazine. Bioreactor experiments revealed that the sulfonamides removal rates in sludge with SMC were greater than those in sludge alone. The sulfonamides removal rates were enhanced by the addition of SMC for six time additions. The sulfonamides concentrations were 200 and 500 mg kg−1 for the first to third additions and the fourth to sixth additions, respectively. With the high correlations between TOC and the proportions of sulfonamides remaining in sludge, sulfonamides may be mineralized to a greater extent with SMC in sludge than in sludge alone. Four bacterial genera were identified from the different settings and stages of the bioreactor experiments. Acinetobacter and Pseudomonas were major bacterial communities that were responsible for sulfonamide degradation in sludge.

ACS Style

Chu-Wen Yang; Wan-Chun Hsiao; Bea-Ven Chang. Biodegradation of sulfonamide antibiotics in sludge. Chemosphere 2016, 150, 559 -565.

AMA Style

Chu-Wen Yang, Wan-Chun Hsiao, Bea-Ven Chang. Biodegradation of sulfonamide antibiotics in sludge. Chemosphere. 2016; 150 ():559-565.

Chicago/Turabian Style

Chu-Wen Yang; Wan-Chun Hsiao; Bea-Ven Chang. 2016. "Biodegradation of sulfonamide antibiotics in sludge." Chemosphere 150, no. : 559-565.

Journal article
Published: 03 February 2015 in Journal of Microbiology, Immunology and Infection
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Polybrominated diphenyl ethers (PBDEs) are extensively used as a class of flame retardants and have become ubiquitous environmental pollutants. We aimed to uncover the changes in microbial community with PBDE anaerobic degradation with and without zero-valent iron in sediment from the Erren River, considered one of the most heavily contaminated rivers in Taiwan. PBDE anaerobic degradation in sediment was analyzed by gas chromatography with an electron capture detector. Microbial community composition was analyzed by a pyrosequencing-based metagenomic approach. The anaerobic degradation rate of BDE-209 was higher than BDE-28 in sediment; the addition of zero-valent iron enhanced the degradation rates of both. In total, 19 known bacterial genera (4 major genera: Clostridium, Lysinibacillus, Rummeliibacillus, and Brevundimonas) were considered PBDE degradation-associated bacteria (sequence frequency negatively correlated with PBDE remaining percentage) as were four known archaea genera (Methanobacterium, Methanosarcina, Methanocorpusculum, and Halalkalicoccus; sequence frequency positively correlated with PBDE remaining percentage). The composition of bacteria and that of archaea affected the anaerobic degradation of BDE-28 and BDE-209. The addition of zero-valent iron further decreased the archaea content to undetectable levels.

ACS Style

Chu-Wen Yang; Huang-Wen Huang; Bea-Ven Chang. Microbial communities associated with anaerobic degradation of polybrominated diphenyl ethers in river sediment. Journal of Microbiology, Immunology and Infection 2015, 50, 32 -39.

AMA Style

Chu-Wen Yang, Huang-Wen Huang, Bea-Ven Chang. Microbial communities associated with anaerobic degradation of polybrominated diphenyl ethers in river sediment. Journal of Microbiology, Immunology and Infection. 2015; 50 (1):32-39.

Chicago/Turabian Style

Chu-Wen Yang; Huang-Wen Huang; Bea-Ven Chang. 2015. "Microbial communities associated with anaerobic degradation of polybrominated diphenyl ethers in river sediment." Journal of Microbiology, Immunology and Infection 50, no. 1: 32-39.

Journal article
Published: 01 December 2014 in International Biodeterioration & Biodegradation
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ACS Style

Chu-Wen Yang; Sen-Lin Tang; Ling-Yun Chen; Bea-Ven Chang. Removal of nonylphenol by earthworms and bacterial community change. International Biodeterioration & Biodegradation 2014, 96, 9 -17.

AMA Style

Chu-Wen Yang, Sen-Lin Tang, Ling-Yun Chen, Bea-Ven Chang. Removal of nonylphenol by earthworms and bacterial community change. International Biodeterioration & Biodegradation. 2014; 96 ():9-17.

Chicago/Turabian Style

Chu-Wen Yang; Sen-Lin Tang; Ling-Yun Chen; Bea-Ven Chang. 2014. "Removal of nonylphenol by earthworms and bacterial community change." International Biodeterioration & Biodegradation 96, no. : 9-17.

Articles
Published: 24 April 2014 in Journal of Environmental Science and Health, Part B
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Tetracyclines (TCs), including tetracycline (TC), oxytetracycline (OTC), and chlortetracycline (CTC), are amongst the most common antibiotics used in animal husbandry. Residual amounts of these antibiotics in the environment are a concern because they contribute to selection of resistant bacteria. In this study, we investigated the biodegradation of three TCs in swine wastewater. In batch experiments, OTC and CTC were completely degraded at d 18 and 20, respectively, but TC was remained at 7.1% after 20 d incubation. The degradation rates of TCs in the wastewater were in the order of OTC > CTC > TC. Degradation of the TCs was enhanced by the addition of enzyme extract from spent mushroom compost (SMC) of Pleurotus eryngii. The degradation rates were higher with the addition of extract‐containing microcapsules than suspended enzyme extract in swine wastewater. In the bioreactor experiment, the addition of extract‐containing microcapsules enhanced the removal rates of the three TCs, and adding TCs twice maintained enzyme activity in the swine wastewater. Of the microorganism strains isolated from the wastewater samples, strain HL2 (identified as Xanthobacter flavus) showed the best degrading ability.

ACS Style

Bea‐Ven Chang; Fu‐Yin Hsu; Hung‐Yu Liao. Biodegradation of three tetracyclines in swine wastewater. Journal of Environmental Science and Health, Part B 2014, 49, 449 -455.

AMA Style

Bea‐Ven Chang, Fu‐Yin Hsu, Hung‐Yu Liao. Biodegradation of three tetracyclines in swine wastewater. Journal of Environmental Science and Health, Part B. 2014; 49 (6):449-455.

Chicago/Turabian Style

Bea‐Ven Chang; Fu‐Yin Hsu; Hung‐Yu Liao. 2014. "Biodegradation of three tetracyclines in swine wastewater." Journal of Environmental Science and Health, Part B 49, no. 6: 449-455.

Journal article
Published: 25 November 2013 in International Biodeterioration & Biodegradation
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Polybrominated diphenyl ethers (PBDEs) are emerging persistent organic pollutants and have consequently drawn much environmental concern. The objective of this study was to evaluate reductive debromination of decabromodiphenyl ether (BDE-209) by anaerobic microbes from river sediment under various conditions. The debromination rates for BDE-209 were enhanced by the addition of brij 30, brij 35, rhamnolipid, surfactin, vitamin B12, zero-valent iron, acetate, lactate, and pyruvate. Zero-valent iron yielded the highest BDE-209 debromination. For the various PBDE congeners, the high-to-low order of debromination rates in sediment was BDE-209 > BDE-99 > BDE-47 > BDE-28 > BDE-15. The intermediate products resulting from the reductive debromination of BDE-209 in sediment were nona-BDE (BDE-207), octa-BDEs (BDE-196, 197), hepta-BDEs (BDE-183, 184, 191), hexa-BDEs (BDE-138, 154), penta-BDEs (BDE-85, 99, 100, 119), tetra-BDEs (BDE-47, 49, 66, 71), tri-BDEs (BDE-17, 28), di-BDEs (BDE-7, 15), and mono-BDE (BDE-3). Our result shows BDE-209 can be debrominated successively to BDE-3 by anaerobic microbes from river sediment. This research offers feasible methods for removal of BDE-209 in river sediment for bioremediation.

ACS Style

Huang-Wen Huang; Bea-Ven Chang; Ching-Chang Lee. Reductive debromination of decabromodiphenyl ether by anaerobic microbes from river sediment. International Biodeterioration & Biodegradation 2013, 87, 60 -65.

AMA Style

Huang-Wen Huang, Bea-Ven Chang, Ching-Chang Lee. Reductive debromination of decabromodiphenyl ether by anaerobic microbes from river sediment. International Biodeterioration & Biodegradation. 2013; 87 ():60-65.

Chicago/Turabian Style

Huang-Wen Huang; Bea-Ven Chang; Ching-Chang Lee. 2013. "Reductive debromination of decabromodiphenyl ether by anaerobic microbes from river sediment." International Biodeterioration & Biodegradation 87, no. : 60-65.

Journal article
Published: 23 September 2013 in Environmental Technology
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This study investigated the aerobic degradation ofbisphenol-A (BPA) and the derivatives bisphenol-B (BPB), bisphenol-F (BPF), tetrabromobisphenol-A (TBBPA), and tetrachlorobisphenol-A (TCBPA) in river sediment. The degradation rates of BPA and BPF were enhanced by adding brij 30, brij 35, rhamnolipid, surfactin, or crude enzyme; a higher degradation rate was observed with crude enzyme than with the other additives. The degradation rates of BPA and its derivatives (BPAs) in the sediment were BPF > BPA > BPB > TCBPA > TBBPA. Different BPAs affected the changes in the microbial community in the sediment. Sediment fractions with larger particle sizes demonstrated higher degradation rates. Different sediment particle sizes affected the changes in the microbial communities. Pseudomonas sp. may be the dominant bacteria in the process of degradation of BPAs in river sediment.

ACS Style

Bea-Ven Chang; Jing-Hua Liu; Chien Sen Liao. Aerobic degradation of bisphenol-A and its derivatives in river sediment. Environmental Technology 2013, 35, 416 -424.

AMA Style

Bea-Ven Chang, Jing-Hua Liu, Chien Sen Liao. Aerobic degradation of bisphenol-A and its derivatives in river sediment. Environmental Technology. 2013; 35 (4):416-424.

Chicago/Turabian Style

Bea-Ven Chang; Jing-Hua Liu; Chien Sen Liao. 2013. "Aerobic degradation of bisphenol-A and its derivatives in river sediment." Environmental Technology 35, no. 4: 416-424.