Pub Date : 2026-08-04DOI: 10.1080/10889868.2026.2713777
Qutubuddin Mirbahar, Mir Ali Muhammad Talpur, Muhammad Shahzaib Imam Bhatti, Sadam Hussain Shaikh, Shehzad Ali Patthan, Iqra Gul, Majid Ali Maitlo, Muneer Ahmed Qazi, Irfan Ali Phulpoto
This study explored the identification of thermophilic biosurfactants producing bacteria and their potential for heavy used engine oil (HUEO) degradation with and without supplementation of exogenous surfactant. Among the various isolated bacteria Bacillus stercoris S1M and Brevibacillus agri ST2 were selected as potent biosurfactants producing and hydrocarbon (i.e., HUEO) degrading bacteria under thermophilic (50 °C) condition. Both strains viz. S1M and ST2 were found to be efficient biosurfactants producers with significant oil displacement activity (ODA) and emulsification indices (EI24%), with 29.5 ± 2.12 to 18.5 ± 4.94 mm ODA, and 65.25 ± 8.72 to 33.33 ± 9.42% EI to Kerosene oil, respectively). HUEO degradation under thermophilic conditions was evaluated for both strains and defined co-culture. The addition of exogenous surfactant further enhanced biodegradation efficiency for Bacillus stercoris S1M (increased from 46.40 ± 7.8 to 64.87 ± 14.00%), confirming their role in improving hydrocarbon bioavailability. Brevibacillus agri ST2 degradation increased modestly (70.77 ± 13.13 to 74.77 ± 1.46%) and its co-culture (66.39 ± 10.51 to 76.36 ± 7.22%). However, exogenous surfactant exerted an inhibitory effect on the growth of Brevibacillus agri ST2, and in the co-culture. This study demonstrates a novel dual role of surfactant in thermophilic hydrocarbon degradation. It acts not only as a bioavailability enhancer which significantly enhanced HUEO degradation by S1M and its co-culture, but also a potent disruptor of microbial synergy, possessing a growth-inhibitory effect on a key degrading partner i.e., ST2 strain. This reveals a critical strain-specific tradeoff between the metabolic enhancement and ecological interactions in designed bioremediation consortia.
{"title":"Exogenous surfactants enhance biodegradation of heavy used engine oil by increasing substrate surface area for thermophilic biosurfactants-producing bacteria","authors":"Qutubuddin Mirbahar, Mir Ali Muhammad Talpur, Muhammad Shahzaib Imam Bhatti, Sadam Hussain Shaikh, Shehzad Ali Patthan, Iqra Gul, Majid Ali Maitlo, Muneer Ahmed Qazi, Irfan Ali Phulpoto","doi":"10.1080/10889868.2026.2713777","DOIUrl":"https://doi.org/10.1080/10889868.2026.2713777","url":null,"abstract":"This study explored the identification of thermophilic biosurfactants producing bacteria and their potential for heavy used engine oil (HUEO) degradation with and without supplementation of exogenous surfactant. Among the various isolated bacteria Bacillus stercoris S1M and Brevibacillus agri ST2 were selected as potent biosurfactants producing and hydrocarbon (i.e., HUEO) degrading bacteria under thermophilic (50 °C) condition. Both strains viz. S1M and ST2 were found to be efficient biosurfactants producers with significant oil displacement activity (ODA) and emulsification indices (EI24%), with 29.5 ± 2.12 to 18.5 ± 4.94 mm ODA, and 65.25 ± 8.72 to 33.33 ± 9.42% EI to Kerosene oil, respectively). HUEO degradation under thermophilic conditions was evaluated for both strains and defined co-culture. The addition of exogenous surfactant further enhanced biodegradation efficiency for Bacillus stercoris S1M (increased from 46.40 ± 7.8 to 64.87 ± 14.00%), confirming their role in improving hydrocarbon bioavailability. Brevibacillus agri ST2 degradation increased modestly (70.77 ± 13.13 to 74.77 ± 1.46%) and its co-culture (66.39 ± 10.51 to 76.36 ± 7.22%). However, exogenous surfactant exerted an inhibitory effect on the growth of Brevibacillus agri ST2, and in the co-culture. This study demonstrates a novel dual role of surfactant in thermophilic hydrocarbon degradation. It acts not only as a bioavailability enhancer which significantly enhanced HUEO degradation by S1M and its co-culture, but also a potent disruptor of microbial synergy, possessing a growth-inhibitory effect on a key degrading partner i.e., ST2 strain. This reveals a critical strain-specific tradeoff between the metabolic enhancement and ecological interactions in designed bioremediation consortia.","PeriodicalId":8935,"journal":{"name":"Bioremediation Journal","volume":"1 1","pages":"1-11"},"PeriodicalIF":0.0,"publicationDate":"2026-08-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148861223","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-08-27DOI: 10.1080/10889868.2024.2396100
Yue Zhan, Xin Wang, Jiawen Hou, Jia Bao, Mengqin Yao
The widespread use of the herbicide alachlor disrupted the endocrine system of organisms in the soil and severely contaminated the soil. Biodegradable herbicides have become a hot research topic. I...
{"title":"Study on the bioremediation of alachlor-contaminated farmland soil and the toxicity of its metabolites by dominant bacterial","authors":"Yue Zhan, Xin Wang, Jiawen Hou, Jia Bao, Mengqin Yao","doi":"10.1080/10889868.2024.2396100","DOIUrl":"https://doi.org/10.1080/10889868.2024.2396100","url":null,"abstract":"The widespread use of the herbicide alachlor disrupted the endocrine system of organisms in the soil and severely contaminated the soil. Biodegradable herbicides have become a hot research topic. I...","PeriodicalId":8935,"journal":{"name":"Bioremediation Journal","volume":"99 1","pages":""},"PeriodicalIF":2.0,"publicationDate":"2024-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142217052","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-08-14DOI: 10.1080/10889868.2024.2390432
Zeinab Ezzeddine, Ghassan Ghssein
Published in Bioremediation Journal (Ahead of Print, 2024)
发表于《生物修复期刊》（2024 年，提前出版）
{"title":"Metallophores as promising chelates for heavy metals removal from polluted water","authors":"Zeinab Ezzeddine, Ghassan Ghssein","doi":"10.1080/10889868.2024.2390432","DOIUrl":"https://doi.org/10.1080/10889868.2024.2390432","url":null,"abstract":"Published in Bioremediation Journal (Ahead of Print, 2024)","PeriodicalId":8935,"journal":{"name":"Bioremediation Journal","volume":"59 1","pages":""},"PeriodicalIF":2.0,"publicationDate":"2024-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142217054","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
River Yamuna serves as a major lifeline in Delhi and the people living along its banks rely on it for their livelihoods. However, it faces severe contamination due to anthropogenic activities, such...
{"title":"Bioremediation of complex contaminated Yamuna River India by using selected cyanobacteria","authors":"Dharmendra Kumar, Sumaiya Qureshi, Dinabandhu Sahoo","doi":"10.1080/10889868.2024.2382265","DOIUrl":"https://doi.org/10.1080/10889868.2024.2382265","url":null,"abstract":"River Yamuna serves as a major lifeline in Delhi and the people living along its banks rely on it for their livelihoods. However, it faces severe contamination due to anthropogenic activities, such...","PeriodicalId":8935,"journal":{"name":"Bioremediation Journal","volume":"137 1","pages":""},"PeriodicalIF":2.0,"publicationDate":"2024-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141882501","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Since conventional dye removal techniques require a substantial amount of energy and chemicals, this study evaluated the utilization of Pleurotus ostreatus, a species of fungus, in an environmental...
{"title":"Investigating the optimum conditions for azo dye (methyl orange and methyl red) decolorization from aqueous solution using oyster mushroom (Pleurotus ostreatus): a mycoremediation approach","authors":"Khadiza Akter Tania, Era Juliet Das, Mirana Tahsin, Md. Arifur Rahman Bhuiyan","doi":"10.1080/10889868.2024.2381015","DOIUrl":"https://doi.org/10.1080/10889868.2024.2381015","url":null,"abstract":"Since conventional dye removal techniques require a substantial amount of energy and chemicals, this study evaluated the utilization of Pleurotus ostreatus, a species of fungus, in an environmental...","PeriodicalId":8935,"journal":{"name":"Bioremediation Journal","volume":"14 1","pages":""},"PeriodicalIF":2.0,"publicationDate":"2024-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141741355","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-07-19DOI: 10.1080/10889868.2024.2380998
Lukhanyo Mekuto, Nelson T. Tsotetsi
This study focused on the biodegradation of acetonitrile (ACN) and subsequent nitrification using a mesophilic microbial consortium isolated from Phragmites australis and Zantedeschia aethiopica pl...
{"title":"Acetonitrile biodegradation and total nitrogen removal in a single-stage airlift bioreactor using bacterial endophytes","authors":"Lukhanyo Mekuto, Nelson T. Tsotetsi","doi":"10.1080/10889868.2024.2380998","DOIUrl":"https://doi.org/10.1080/10889868.2024.2380998","url":null,"abstract":"This study focused on the biodegradation of acetonitrile (ACN) and subsequent nitrification using a mesophilic microbial consortium isolated from Phragmites australis and Zantedeschia aethiopica pl...","PeriodicalId":8935,"journal":{"name":"Bioremediation Journal","volume":"25 1","pages":""},"PeriodicalIF":2.0,"publicationDate":"2024-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141741354","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-06-03DOI: 10.1080/10889868.2024.2352121
Manami Chakravorty, Manisha Nanda, Waseem Ahmed, Afzal Hussain, Mikhail Vlaskin, Kurbatova Anna I, Vinod Kumar
Different microalgal species possess the proficiency of tolerating heavy metals and enhance certain metabolic processes under metal stress. This is a novel study on C. minutissima under Chromium (I...
不同的微藻物种具有耐受重金属的能力，并能在金属胁迫下增强某些代谢过程。这是一项关于 C. minutissima 在铬（I...
{"title":"In-vitro cr (III) alleviation and the concurrent biochemical responses by Chlorella minutissima to establish its phycoremediation potential and biofuel prospects","authors":"Manami Chakravorty, Manisha Nanda, Waseem Ahmed, Afzal Hussain, Mikhail Vlaskin, Kurbatova Anna I, Vinod Kumar","doi":"10.1080/10889868.2024.2352121","DOIUrl":"https://doi.org/10.1080/10889868.2024.2352121","url":null,"abstract":"Different microalgal species possess the proficiency of tolerating heavy metals and enhance certain metabolic processes under metal stress. This is a novel study on C. minutissima under Chromium (I...","PeriodicalId":8935,"journal":{"name":"Bioremediation Journal","volume":"75 1","pages":""},"PeriodicalIF":2.0,"publicationDate":"2024-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141259574","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
This study investigates the potential of silicate to alleviate cadmium (Cd) toxicity in Gracilaria edulis, an agarophyte. Under various culture conditions spanning 21 days, alga was grown in contro...
{"title":"Enhancing growth and Cadmium remediation in red alga, Gracilaria edulis through silicate intervention","authors":"Umashree Vaninilaya Raghurama, Mohammad Sibtain Kadri, Kavya Mullechery, Nayana Karicheri, Arunkumar Kulanthaiyesu","doi":"10.1080/10889868.2024.2352125","DOIUrl":"https://doi.org/10.1080/10889868.2024.2352125","url":null,"abstract":"This study investigates the potential of silicate to alleviate cadmium (Cd) toxicity in Gracilaria edulis, an agarophyte. Under various culture conditions spanning 21 days, alga was grown in contro...","PeriodicalId":8935,"journal":{"name":"Bioremediation Journal","volume":"69 1","pages":""},"PeriodicalIF":2.0,"publicationDate":"2024-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141256821","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-05-11DOI: 10.1080/10889868.2024.2351458
Srinivas Tadepalli, K. S. R. Murthy, Vishal Mishra
The adsorbent studies with agricultural adsorbent (maize) and commercially purchased activated charcoal and bone charcoal (1:1 ratio) were carried out for the removal of copper and cadmium. The Mix...
{"title":"Comparison of cadmium and copper removal by maize cobs and mixed adsorbent from industrial effluents","authors":"Srinivas Tadepalli, K. S. R. Murthy, Vishal Mishra","doi":"10.1080/10889868.2024.2351458","DOIUrl":"https://doi.org/10.1080/10889868.2024.2351458","url":null,"abstract":"The adsorbent studies with agricultural adsorbent (maize) and commercially purchased activated charcoal and bone charcoal (1:1 ratio) were carried out for the removal of copper and cadmium. The Mix...","PeriodicalId":8935,"journal":{"name":"Bioremediation Journal","volume":"7 1","pages":""},"PeriodicalIF":2.0,"publicationDate":"2024-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140940065","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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