Bioremediation Science and Technology Research最新文献_第3页

Effect of Growth Media and pH on Microalgal Biomass of Chlorella vulgaris for Biodiesel Production 培养基和pH对普通小球藻生物柴油微藻生物量的影响

Bioremediation Science and Technology Research Pub Date : 2022-07-31 DOI: 10.54987/bstr.v10i1.684

B. S. Adam, B. Abubakar, L. Garba, I. Hassan

{"title":"Effect of Growth Media and pH on Microalgal Biomass of Chlorella vulgaris for Biodiesel Production","authors":"B. S. Adam, B. Abubakar, L. Garba, I. Hassan","doi":"10.54987/bstr.v10i1.684","DOIUrl":"https://doi.org/10.54987/bstr.v10i1.684","url":null,"abstract":"The increased industrialization and overuse of natural resources for energy, such as fossil fuels, have led to the energy crises and environmental issues that plague the world in the twenty-first century. The production of biodiesel from algae has recently gained attention as a potentially useful alternative fuel that is both environmentally friendly and easy to obtain. In this work, the effects of various pH levels on algae biomass and oil production from Chlorella Vulgaris were studied. The growth of the biomass concentration was monitored using a spectrophotometer. The biomass of C. vulgaris obtained from the test was subjected to oil extraction using the chemical solvent method. Out of the five media compositions tested (MBG-11, BG-11, BBM, M8 and N8), MBG-11 recorded the highest biomass concentration at pH 8 (0.6 mg/L/D) and N8 recorded the least biomass concentration at pH 6 (0.49 mg/L/D). The highest percentage of oil was extracted from the C. vulgaris in BBM at pH 6 (31.22%) while the lowest oil was recorded in M8 at pH 8 (14.75%). In conclusion, the best medium for C. vulgaris biomass production was MBG-11 medium while the best medium for oil Production from this microalga was Bold Basal Medium (BBM).","PeriodicalId":436607,"journal":{"name":"Bioremediation Science and Technology Research","volume":"T159 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125660455","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: 1

Yeast Inhibitive Assay for Anionic Heavy Metals: A review 阴离子重金属酵母抑制试验研究进展

Bioremediation Science and Technology Research Pub Date : 2022-07-31 DOI: 10.54987/bstr.v10i1.686

Farah Najieha Mohd Sadli, Masyitah Husna Ammer, M. Shukor

引用次数: 0

Kinetic Analysis of the Adsorption of Ethyl Violet onto Graphene Oxide Sheets Integrated with Gold Nanoparticles 纳米金集成氧化石墨烯片吸附乙基紫的动力学分析

Bioremediation Science and Technology Research Pub Date : 2021-12-31 DOI: 10.54987/bstr.v9i2.625

Bilal Ibrahim Dan-Iya, A. A. Basirun, M. Shukor

{"title":"Kinetic Analysis of the Adsorption of Ethyl Violet onto Graphene Oxide Sheets Integrated with Gold Nanoparticles","authors":"Bilal Ibrahim Dan-Iya, A. A. Basirun, M. Shukor","doi":"10.54987/bstr.v9i2.625","DOIUrl":"https://doi.org/10.54987/bstr.v9i2.625","url":null,"abstract":"An example of biosorption is when the sorbent is made from a biodegradable material. Biosorption is now being seen as a simple, cost-effective, and environmentally acceptable alternative to traditional pollution treatment methods. Bioremediation is one of the branches of bioremediation that is used to minimise pollution in the context of incorrect dye waste disposal. The sorption isotherm of Ethyl Violet onto graphene oxide were analyzed using three models—pseudo-1st, pseudo-2nd and Elovich, and fitted using non-linear regression. 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 Hannan–Quinn information criterion (HQC) that showed that the pseudo-second-order model was the best which was the same finding from the original published work. The calculated evidence ratio was 11 with an AICc probability value of 0.91 indicating that the best model was at least 11 times better than the nearest best model, which was pseudo-1st. Further analysis is needed to provide proof for the mechanism usually tied to this kinetic. Nonlinear regression analysis using the pseudo-2nd order model for the highest concentration tested, which was 10 mM, gave values of equilibrium sorption capacity qe of 30.928 mg/g (95% confidence interval from 29.328 to 32.527) and a value of the pseudo-2nd-order rate constant, k2 of 0.020 (95% confidence interval from 0.011 to 0.028).","PeriodicalId":436607,"journal":{"name":"Bioremediation Science and Technology Research","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134030408","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

Characterization of Aniline Degradation by A Previously Isolated Molybdenum-reducing Pseudomonas sp. 一株原分离的钼还原假单胞菌对苯胺的降解特性

Bioremediation Science and Technology Research Pub Date : 2021-12-31 DOI: 10.54987/bstr.v9i2.621

A. Tijjani, A. Sufyan, S. Ibrahim, D. Shehu, M. Ya’u, K. Babagana, I. Sani, H. Yakasai

引用次数: 1

Comparative Insecticidal Effects of Dry Ocimum Gratissium (Scent Leaves) and Rambo™ Paper on Mosquitoes in Jos, Nigeria 干香叶和Rambo™纸对尼日利亚乔斯蚊子的杀虫效果比较

Bioremediation Science and Technology Research Pub Date : 2021-12-31 DOI: 10.54987/bstr.v9i2.620

P. Agbalaka, Gumta Rapheal Matthew, U. Obeta, Jonathan Sabulu, Rose Joshua-Ojokpe, Nathan Pada

{"title":"Comparative Insecticidal Effects of Dry Ocimum Gratissium (Scent Leaves) and Rambo™ Paper on Mosquitoes in Jos, Nigeria","authors":"P. Agbalaka, Gumta Rapheal Matthew, U. Obeta, Jonathan Sabulu, Rose Joshua-Ojokpe, Nathan Pada","doi":"10.54987/bstr.v9i2.620","DOIUrl":"https://doi.org/10.54987/bstr.v9i2.620","url":null,"abstract":"Insecticides are chemicals or biological substances that are used to kill or disable insects. Blood feeding mosquitoes are responsible for the intolerable biting nuisance and transmission of large number of diseases such as malaria, yellow fever, dengue fever, filarias is amongst others, causing serious health problems to humans and obstacles to socioeconomic development of developing nations like Nigeria. The insecticidal effect of scent leaves (Ocimum gratissum) and Rambo™ paper on mosquitoes was investigated. The study is aimed at comparing the insecticidal effects of Ocimum gratissimum and Rambo™ paper on mosquitoes in Jos. 100 mosquitoes were exposed to dried Ocimum gratissum and Rambo™ paper at different time intervals of 5, 10 and 12 min. Results obtained showed a time dependent insecticidal effect on mosquitoes, which was 54.2%, 54.0% and 55.6% total mortality of mosquitoes at respective time intervals on exposures to both Rambo™ paper insecticide and Osimum gratissum, indicating that there was a significant difference in the lethal effect of Rambo™ paper insecticide and scent leave on mosquitoes at (p<0.05). In comparing the lethal effect of Rambo™ paper insecticide and Ocimum grasstisimum on mosquitoes at differnt locations in Jos, at Dogon Karfe, after 10 min of treatment, Rambo™ paper had the highest lethal effect of 21 (84.0%) compared to scent leaves 6 (24.0%) and at Abattoir Jos, after 12 min of treatment, Rambo™ paper had the highest lethal effect of 17 (94.4%) compared to Ocimum grasstisimum 3 (16.7%). These comparisons were significant at p 0.05. This study provides evidence that Ocimum grasstisimum has a mosquitocidal effect. However, the Rambo™ paper gave a better mosquitocidal effect than Ocimum grasstisimum. There is a need to discover better additive or extract options that could give Ocimum grasstisimum a better effect as a natural product available in Africa towards the malaria eradication programme.","PeriodicalId":436607,"journal":{"name":"Bioremediation Science and Technology Research","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122404590","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

Effect of Cowpea Seed Beetle (Callosobruchus maculatus) Infestation on Selected Landraces of Bambara Groundnut During Storage 豇豆种子甲虫(Callosobruchus maculatus)侵染部分地方品种贮藏期的影响

Bioremediation Science and Technology Research Pub Date : 2021-12-31 DOI: 10.54987/bstr.v9i2.624

Ismaila Muhammad, N. Abdullahi, A. B. Shu’aibu, I. Musa, Bawa Zakari Gambo, Zainab Abubakar Adamu

{"title":"Effect of Cowpea Seed Beetle (Callosobruchus maculatus) Infestation on Selected Landraces of Bambara Groundnut During Storage","authors":"Ismaila Muhammad, N. Abdullahi, A. B. Shu’aibu, I. Musa, Bawa Zakari Gambo, Zainab Abubakar Adamu","doi":"10.54987/bstr.v9i2.624","DOIUrl":"https://doi.org/10.54987/bstr.v9i2.624","url":null,"abstract":"The study was carried out to assess the effect of Callosobruchus maculatus infestation on selected Bambara groundnut (Vigna subterranean) landraces in Gombe during storage to determine the Landrace (s) that are less susceptible to infestation caused by C. maculatus during storage. The trial was done in the Botany laboratory of Gombe State University, Gombe. Seeds were collected from five different Landraces, 40 grams each of healthy and C. maculatus infestation free seeds were infested with two males and three females. Completely Randomized Design (CRD) with three replicates was used to assess the effects of C. maculatus infestation on the selected landraces of Bambara groundnut during storage. The results of the analysis of variance displayed significant differences (p≤ 0.05) among the parameters studied. It indicated that the Mottled and Cream landraces are relatively less susceptible and witness lower damage from the bruchids attack 14.6 (36%) and 17 (46%), whereas Red and Black landraces are more susceptible 24 (61 %) and 22 (57 %) (recorded higher damage from the C. maculatus in terms of percentage weight loss recorded). These results showed the existence of variation among the different Bambara groundnut landraces used due to the infestation of C. maculatus. It can be observed from this study that the use of infestation free landraces at storage time may perhaps be a worthwhile and auspicious factor for integrated pest management especially on bruchids in Bambara groundnuts. additionally, Mottle and Cream landraces might be employed as sources of resistance genes for the subsequent plant improvement program.","PeriodicalId":436607,"journal":{"name":"Bioremediation Science and Technology Research","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131401136","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: 1

Characterization of Cypermethrin-degradation by a Novel Molybdenum-reducing Morganella sp. Isolated from Active Agricultural Land in Northwestern Nigeria 尼日利亚西北部一株新型钼还原摩根菌对氯氰菊酯的降解特性

Bioremediation Science and Technology Research Pub Date : 2021-12-31 DOI: 10.54987/bstr.v9i2.623

Mariam Lawan, H. Yakasai, A. Babandi, S. Ibrahim, D. Shehu, M. Ya’u, K. Babagana

引用次数: 0

Molybdenum Blue Production from Serratia sp. strain DRY5: Secondary Modeling 沙雷氏菌DRY5菌株产钼蓝:二次建模

Bioremediation Science and Technology Research Pub Date : 2021-12-31 DOI: 10.54987/bstr.v9i2.622

I. Sabo, Salihu Yahuza, M. Shukor

引用次数: 1

Arrhenius Plot Analysis, Temperature Coefficient and Q10 Value Estimation for the Effect of Temperature on the Rate of Molybdenum Reduction by Acinetobacter calcoaceticus strain Dr.Y12 温度对钙酸不动杆菌Dr.Y12钼还原率影响的阿伦尼乌斯图分析、温度系数及Q10值估算

Bioremediation Science and Technology Research Pub Date : 2021-07-31 DOI: 10.54987/bstr.v9i1.595

Abdussamad Abubakar, S. Ibrahim

{"title":"Arrhenius Plot Analysis, Temperature Coefficient and Q10 Value Estimation for the Effect of Temperature on the Rate of Molybdenum Reduction by Acinetobacter calcoaceticus strain Dr.Y12","authors":"Abdussamad Abubakar, S. Ibrahim","doi":"10.54987/bstr.v9i1.595","DOIUrl":"https://doi.org/10.54987/bstr.v9i1.595","url":null,"abstract":"Molybdenum is a micronutrient that is required as a co-factor for a variety of hydroxylation and redox transfer activities in both animal and plant physiological processes. The potential of over exposure to interfere with the sperm production and egg formation processes in a number of species, including fish, is the biggest danger of excessive exposure. Only recently has it been discovered that it can be utilised as a remediation method for molybdenum-reducing bacteria. The effect of temperature on molybdenum reduction is one of the variables to consider. It is possible to use many different models to estimate the growth rate of microbes on various media based on the temperature being utilised. The Arrhenius model is popular due to the fact that it contains a limited number of parameters. In general, temperature has an effect on the development and metabolic activity of microorganisms on their substrates. Because microorganisms are so tiny, they are very sensitive to changes in their environment's temperature. Growth on molybdenum by Acinetobacter calcoaceticus strain Dr.Y12 is described, with a discontinuous chevron-like graph of apparent activation energy with a breakpoint at 32.66 oC. Regression analysis results suggest that in the lower temperature range of 20-30 oC, growth on molybdenum had an activation energy of 66.48 kJ/mol, whereas at the higher temperature range of 37â€“45 oC, it had an activation energy of 99.5 kJ/mol. For the examined temperature range (20-30 oC) and (37-45 oC), Q10 values of 2.46 and 3.37 and theta values of 1.09 and 1.13 were obtained, respectively. This is study is very useful in predicting the breakdown of molybdenum and the movement of molybdenum during bioremediation.","PeriodicalId":436607,"journal":{"name":"Bioremediation Science and Technology Research","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127408250","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: 4

Mathematical Modeling of Molybdenum-Blue Production from Bacillus sp. strain Neni- 芽孢杆菌菌株Neni-产钼蓝的数学模型

Bioremediation Science and Technology Research Pub Date : 2021-07-31 DOI: 10.54987/bstr.v9i1.591

.. Rusnam, H. Yakasai, M. F. Rahman, N. Gusmanizar, M. Shukor

{"title":"Mathematical Modeling of Molybdenum-Blue Production from Bacillus sp. strain Neni-","authors":".. Rusnam, H. Yakasai, M. F. Rahman, N. Gusmanizar, M. Shukor","doi":"10.54987/bstr.v9i1.591","DOIUrl":"https://doi.org/10.54987/bstr.v9i1.591","url":null,"abstract":"Heavy metals can be remediated using microorganism by altering the redox function i.e. reduction from more toxic oxidation state to non-toxic one. Molybdenum reduction to molybdenum blue by bacteria is an emerging tool for remediation of the metal. Mathematical modelling via nonlinear regression of the heavy metalâ€™s reduction can yield important reduction parameters such as theoretical maximum reduction, specific reduction rate, and the lag period of reduction. Nonlinear regression can be utilized using various models such as logistic, Richards, Gompertz, Baranyi-Roberts, Schnute, Buchanan 3-phase, Von Bertalanffy and Huang with the best model yielding an underlying mechanistic property for the reduction. We demonstrate that the Baranyi-Roberts model was the best model in modelling the Mo-blue production curve of the bacterium Bacillus sp. strain Neni-10 based on statistical tests such as root-mean-square error (RMSE), corrected AICc (Akaike Information Criterion), adjusted coefficient of determination (R2), accuracy factor (AF) and bias factor (BF). The model parameters or constants obtained were maximum lag time (Î»), Mo-blue production rate (Î¼m), and maximal Mo-blue production (Ymax). The construction of secondary models will benefit greatly from the use of bacterial growth models to acquire realistic Mo-blue production rates. According to a literature search, this technique is wholly unique for molybdenum reduction to Mo-blue in particular, and in the heavy metalsâ€™ detoxification process in general. The results of this study have demonstrated the usefulness of these models in simulating Mo-blue synthesis in bacteria.","PeriodicalId":436607,"journal":{"name":"Bioremediation Science and Technology Research","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117163037","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: 3