Bioremediation Science and Technology Research最新文献_第6页

Biodegradation of Sodium Dodecyl Sulphate (SDS) by Serratia marcescens strain DRY6 粘质沙雷氏菌DRY6对十二烷基硫酸钠(SDS)的生物降解

Bioremediation Science and Technology Research Pub Date : 2019-12-28 DOI: 10.54987/bstr.v7i2.486

A. Othman, M. Yusof, M. Shukor

{"title":"Biodegradation of Sodium Dodecyl Sulphate (SDS) by Serratia marcescens strain DRY6","authors":"A. Othman, M. Yusof, M. Shukor","doi":"10.54987/bstr.v7i2.486","DOIUrl":"https://doi.org/10.54987/bstr.v7i2.486","url":null,"abstract":"A bacterium capable of degrading sodium dodecyl sulphate (SDS) is characterized. Previously, the bacterium has been shown to have the capability to reduce molybdenum to molybdenum blue. In this report, we showed that almost complete degradation of SDS was observed in 6 to 10 days when the bacterium was grown on medium supplemented with SDS ranging from 0.5 to 1 g L-1 while higher concentrations showed partial degradation with no degradation was observed at concentrations higher than 2.5 g L-1. Other detergents were also tested including Tergitol NP9, Tergitol 15S9, Witconol 2301 (methyl oleate), sodium dodecylbenzene sulfonate (SDBS), benzethonium chloride and benzalkonium chloride. However, growth can only be seen on the anionic SDBS. We also showed that the presence of metal ions such as silver, copper, cadmium, chromium, lead and mercury inhibits the ability of the bacterium to degrade SDS by 50%. Growth on SDS could not support molybdenum-reduction in this bacterium. Growth kinetic studies showed that the growth rate could be modelled using Haldane substrate inhibition kinetics with the maximum growth rate, Âµmax, was 0.13 h-1, while the saturation constant or half velocity constant Ks and inhibition constant Ki, were 0.707 and 11.303 g L-1 SDS, respectively.","PeriodicalId":436607,"journal":{"name":"Bioremediation Science and Technology Research","volume":"139 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133823446","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 6

Bacillus sp. UPM-AAG1 for The Bioremediation of Ammonia in Aquaculture Wastewater 芽孢杆菌sp. UPM-AAG1对水产养殖废水中氨的生物修复作用

Bioremediation Science and Technology Research Pub Date : 2019-12-28 DOI: 10.54987/bstr.v7i2.484

Nur Syafiqah Ramli, Aaâ€™isyah Abdul Gafar, M. Shukor

引用次数: 0

Optimisation of Acetylcholinesterase Extraction from the Brain of Clarias batrachus using Response Surface Methodology 响应面法优化batrachus脑乙酰胆碱酯酶提取工艺

Bioremediation Science and Technology Research Pub Date : 2019-12-28 DOI: 10.54987/bstr.v7i2.485

Mohamed Nazri, A. A. Basirun, M. Manogaran, S. Khalidi, M. K. Sabullah, M. Shukor

引用次数: 0

Kinetic Analysis of the Adsorption of the Brominated Flame Retardant 4-bromodiphenyl Ether onto Biochar-immobilized Sphingomonas sp. 生物炭固定化鞘氨单胞菌对溴化阻燃剂4-溴联苯醚的吸附动力学分析。

Bioremediation Science and Technology Research Pub Date : 2019-07-31 DOI: 10.54987/bstr.v7i1.457

S. Sha'arani, Muhammad Arif Mukhriz Ros Saidon Khudri, A. Othman, M. Halmi, N. A. Yasid, M. Shukor

{"title":"Kinetic Analysis of the Adsorption of the Brominated Flame Retardant 4-bromodiphenyl Ether onto Biochar-immobilized Sphingomonas sp.","authors":"S. Sha'arani, Muhammad Arif Mukhriz Ros Saidon Khudri, A. Othman, M. Halmi, N. A. Yasid, M. Shukor","doi":"10.54987/bstr.v7i1.457","DOIUrl":"https://doi.org/10.54987/bstr.v7i1.457","url":null,"abstract":"4-bromophenyl phenyl ether or 4-bromodiphenyl ether (4-BDE) is a less brominated PBDE, which are brominated flame retardants (BFRs), that has come into importance when it was detected as the main pollutant in Sungai Buah, a tributary to the Sungai Semenyih that have recently caused the pollution of drinking waters in the Semenyih Water Treatment Plant, Putrajaya Selangor that led to water shortage for many days to affecting many areas. 4-BDE is also a recalcitrant priority pollutant where it is barely degraded at all. Many of the PBDE can cause developmental neurotoxicity. The absorption kinetics data of biosorption isotherm on the biosorption of 4-BDE onto Biochar-immobilized Sphingomonas sp. were analyzed using three modelsâ€”pseudo-1st, pseudo-2nd and Elovich, and fitted using non-linear regression. The Elovich model was the poorest in fitting the curve based on visual observation followed by the pseudo-1st order. Statistical analysis based on root-mean-square error (RMSE), adjusted coefficient of determination (adjR2), bias factor (BF), accuracy factor (AF), corrected AICc (Akaike Information Criterion), Bayesian Information Criterion (BIC) and Hannanâ€“Quinn information criterion (HQC) that showed that the pseudo-1ST order model is the best model. Kinetic analysis using the pseudo-1st order model at 400 mg/L 4-BDE gave a value of equilibrium sorption capacity qe of 31.89 mg g-1 (95% confidence interval from 30.37 to 33.42) and a value of the pseudo-1st-order rate constant, k1 of 0.22 (95% confidence interval from 0.019 to 0.025). Further analysis is needed to provide proof for the chemisorption mechanism usually tied to this kinetic.","PeriodicalId":436607,"journal":{"name":"Bioremediation Science and Technology Research","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114078607","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 12

Modelling the Effect of Heavy Metal on the Growth Rate of an SDS-degrading Pseudomonas sp. strain DRY15 from Antarctic soil 模拟重金属对南极土壤中sds降解假单胞菌菌株DRY15生长速率的影响

Bioremediation Science and Technology Research Pub Date : 2019-07-31 DOI: 10.54987/bstr.v7i1.463

M. Manogaran, A. Othman, M. Shukor, M. Halmi

{"title":"Modelling the Effect of Heavy Metal on the Growth Rate of an SDS-degrading Pseudomonas sp. strain DRY15 from Antarctic soil","authors":"M. Manogaran, A. Othman, M. Shukor, M. Halmi","doi":"10.54987/bstr.v7i1.463","DOIUrl":"https://doi.org/10.54987/bstr.v7i1.463","url":null,"abstract":"The SDS-degrading bacterium Pseudomonas sp. strain DRY15 was strongly inhibited by heavy metals especially mercury. Growth of the SDS-degrading bacterium at various concentrations of mercury shows a sigmoidal pattern with lag periods ranging from 7 to 10 h. As the concentration of mercury was increased, the overall growth was inhibited with 1.0 g/L causing an almost cessation of bacterial growth. The modified Gompertz model was utilized to obtain growth rates at different concentrations of mercury. The growth rates obtained from the modified Gompertz model was then modelled according to the modified Han-Levenspiel, Wang, Liu, modified Andrews, the Amor and Shukor models. Out of the five models, only the Shukor, Wang, modified Han-Levenspiel and the Liu models were able to fit the curve, whilst the modified Andrews and Amor models were unable to fit the curves. The best model was Shukor based on the lowest values for RMSE and AICc, highest adjusted correlation coefficient (adR2) and values of AF and BF closest to unity. The parameters obtained from the Shukor model, which are Sm, ïmax and n which represent critical heavy metal ion concentration (mg/L), maximum growth rate (h-1) and empirical constant values were 6.0 (95%, confidence interval from 5.87 to 6.14), 0.09 (95%, confidence interval of 0.086 to 0.096) and 4.2 (95%, confidence interval from 3.1 to 5.2), respectively.","PeriodicalId":436607,"journal":{"name":"Bioremediation Science and Technology Research","volume":"16 9","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114118158","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 7

Characterizing the Molybdenum-reducing Properties of Pseudomonas sp. locally isolated from Agricultural soil in Kano Metropolis Nigeria 尼日利亚卡诺大都市区农业土壤中分离的假单胞菌的钼还原特性研究

Bioremediation Science and Technology Research Pub Date : 2019-07-31 DOI: 10.54987/bstr.v7i1.462

M. A. Gafasa, S. Ibrahim, A. Babandi, N. Abdullahi, D. Shehu, M. Ya’u, K. Babagana, J. Mashi, H. Yakasai

{"title":"Characterizing the Molybdenum-reducing Properties of Pseudomonas sp. locally isolated from Agricultural soil in Kano Metropolis Nigeria","authors":"M. A. Gafasa, S. Ibrahim, A. Babandi, N. Abdullahi, D. Shehu, M. Ya’u, K. Babagana, J. Mashi, H. Yakasai","doi":"10.54987/bstr.v7i1.462","DOIUrl":"https://doi.org/10.54987/bstr.v7i1.462","url":null,"abstract":"Pollution of the environment by heavy metals and other toxic xenobiotics has increasingly become global public health concern. Bacterial reduction of molybdenum to insoluble molybdenum blue (Mo-blue) forms the basis for its bioremediation. A bacterium with the ability to reduce toxic soluble molybdenum has been isolated from Agricultural soil and identified as Pseudomonas sp. based on the 16S rRNA partial sequencing and phylogenetic analysis. Spectroscopic analysis reveals that the bacterium reduced sodium molybdate to Mo-blue optimally at pH between 6.5 and 7.0, temperatures between 35 Â°C and 40 Â°C. Glucose was the best electron donor source supporting molybdate reduction, followed by sucrose, fructose, glycerol and starch in descending order. Other requirements include a phosphate concentration of 3.5 mM and a molybdate concentration of between 40 and 60 mM. The absorption spectrum of the Mo-blue produced was similar to the previously isolated Mo-reducing bacteria and closely resembles a reduced phosphomolybdate.","PeriodicalId":436607,"journal":{"name":"Bioremediation Science and Technology Research","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116203399","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 7

Kinetic Analysis of the Adsorption of Glyphosate onto Palm Oil Fronds Activated Carbon 棕榈油叶活性炭吸附草甘膦的动力学分析

Bioremediation Science and Technology Research Pub Date : 2019-07-31 DOI: 10.54987/bstr.v7i1.461

Hartinie Marbawi, Muhammad Arif Mukhriz Ros Saidon Khudri, A. Othman, M. Halmi, J. Gansau, N. A. Yasid

{"title":"Kinetic Analysis of the Adsorption of Glyphosate onto Palm Oil Fronds Activated Carbon","authors":"Hartinie Marbawi, Muhammad Arif Mukhriz Ros Saidon Khudri, A. Othman, M. Halmi, J. Gansau, N. A. Yasid","doi":"10.54987/bstr.v7i1.461","DOIUrl":"https://doi.org/10.54987/bstr.v7i1.461","url":null,"abstract":"Existing techniques for the treatment of pollutants include membrane separation, ion exchange, precipitation, transformation and biosorption. Of all of this technology, biosorption has several positive aspects which include low operating expenses, very efficient detoxification of toxicants at low concentrations, low amount of disposal materials and does not need nutrient requirements as in bacterial-based remediation, the latter of which is limited by the presence of heavy metals and other toxicants. The biosorption of glyphosate on palm oil fronds activated carbon can be an efficient and low-cost tool for remediation of glyphosate. The absorption kinetics data of biosorption isotherm on the biosorption of glyphosate on palm oil fronds activated carbon were analyzed using three modelsâ€”pseudo-1st, pseudo-2nd and Elovich, and fitted using non-linear regression. The Elovich model was the poorest in fitting the curve based on visual observation followed by the pseudo-1st order. Statistical analysis based on root-mean-square error (RMSE), adjusted coefficient of determination (adjR2), bias factor (BF), accuracy factor (AF), corrected AICc (Akaike Information Criterion), Bayesian Information Criterion (BIC) and Hannanâ€“Quinn information criterion (HQC) that showed that the pseudo-second order model is the best model. Kinetic analysis using the pseudo-second order model at 250 mg/L glyphosate gave a value of equilibrium sorption capacity qe of 94.12 mg g-1 (95% confidence interval from 89.913 to 98.332) and a value of the pseudo-second-order rate constant, k2 of 0.02 (95% confidence interval from 0.012 to 0.023). Further analysis is needed to provide proof for the chemisorption mechanism usually tied to this kinetic.","PeriodicalId":436607,"journal":{"name":"Bioremediation Science and Technology Research","volume":"66 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130562955","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 9

Soluble Molybdenum Reduction by Morganella sp. Locally-isolated from Agricultural Land in Kano 卡诺农用地莫氏菌还原可溶性钼的研究

Bioremediation Science and Technology Research Pub Date : 2019-07-31 DOI: 10.54987/bstr.v7i1.456

S. Mohammed, M. A. Gafasa, H. Kabara, A. Babandi, D. Shehu, M. Ya’u, S. Abubakar, K. Babagana, J. Mashi, H. Yakasai

引用次数: 5

Allochthonous Diesel Biodegradation by Bacillus sp. MO1 Isolated from Diesel-contaminated Soil 柴油污染土壤中芽孢杆菌MO1对柴油的异域生物降解

Bioremediation Science and Technology Research Pub Date : 2019-07-31 DOI: 10.54987/bstr.v7i1.459

Mohd Syahmi Ramzi Salihan, Syahir Habib, F. Dahalan, N. Hassan, M. Syed, S. A. Gani, M. Shukor

引用次数: 0

Growth Inhibition Kinetics of a Pseudomonas Diesel-degrading Strain from Antarctica 一株来自南极洲的柴油假单胞菌降解菌株的生长抑制动力学

Bioremediation Science and Technology Research Pub Date : 2019-07-31 DOI: 10.54987/bstr.v7i1.458

F. Dahalan, N. Hassan

{"title":"Growth Inhibition Kinetics of a Pseudomonas Diesel-degrading Strain from Antarctica","authors":"F. Dahalan, N. Hassan","doi":"10.54987/bstr.v7i1.458","DOIUrl":"https://doi.org/10.54987/bstr.v7i1.458","url":null,"abstract":"Antarctica is one of the largest southernmost continent and most pristine wilderness areas left on earth. Over decades, human activities in this area have resulted in the accumulated pollution of hydrocarbon in the Antarctica mainly due to transportation and logistics activities. The sinking of the supply ships Nella Dan and Bahia Paraiso have resulted in diesel spillage that warrant the utilization and research on diesel-degrading microorganisms in the form of bioremediation to prepare for future disasters. A previously isolated diesel-degrading Pseudomonas sp. strain DRYJ3 has shown effectiveness as a bioremediation tool. Its growth is however strongly inhibited as the diesel concentrations was increased. In this study the inhibitory effect of diesel on the growth rate of this bacterium is modelled according to the Luong, Aiba, Haldane, Hans-Levenspiel, Yano, Teissier and Monod models. Statistical evaluations indicated that the most suitable kinetic model to fit the growth rate on diesel was Luongâ€™s model. The Luongâ€™s constants; maximal growth rate, half saturation constant for maximal growth, maximum substrate concentration that growth ceases, and curve parameter that defines the steepness of the growth rate decline from the maximum rate symbolized by ïmax, Ks, Sm, and n were 0.406 hr-1 (95% CI, 0.269 to 0.881), 0.194 (%v/v) (95% CI, 0.2877 to 0.390), 4.025 (%v/v) (95% CI, 3.820 to 4.229) and 0.378 (95% CI, 0.122 to 0.877) 0.099, respectively. The Luong model predicted Sm value was close to the value of which no growth was observed experimentally suggesting the appropriateness of the model in adhering to observed values.","PeriodicalId":436607,"journal":{"name":"Bioremediation Science and Technology Research","volume":"132 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132370057","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0