搜索结果: 1-15 共查到“工学 Pseudomonas”相关记录16条 . 查询时间(0.549 秒)
由南四湖底泥中分离纯化出一株低温菌Pseudomonas flava WD-3,为提高其处理污水的效率并实现重复利用,本试验选取在低温(6~8℃)条件下,采用天然材料海藻酸钠(SA)和人工合成材料聚乙烯醇(PVA)共同作用的复合材料为包埋载体,利用正交试验探索其最优的固定化条件;并将最优的Pseudomonas flava WD-3固定化小球投入到SBR污水处理工艺中,探究其投加量和水力停留时间对...
从山东南四湖人工湿地的底泥中分离驯化出在低温条件下生长速率及代谢速率最高的一株菌,经形态特征、生理生化特性及16SrDNA序列分析鉴定,确定该菌株为黄假单胞菌(Pseudomonas flava),命名为Pseudomonas flava WD-3.同时,探索了在北方冬季条件下,该菌投加到人工湿地中在提高废水处理效率的同时,对湿地中土著可培养微生物类群数量和酶活性的影响.结果表明:随着Pseudo...
研究了温度、转速、pH、接种量、碳源和亚硝酸盐氮浓度对耐冷反硝化细菌Pseudomonas putida Y-12去除亚硝酸盐氮和总氮的影响,在此基础上,初步考察了反硝化脱氮产物中温室气体(CO2和N2O)的含量,探索了对富营养化景观水体中亚硝酸盐氮和总氮的去除能力.结果表明:Y-12菌株去除亚硝酸盐氮和总氮的最佳碳源为柠檬酸钠,在15℃和pH为7.2条件下,该菌以柠檬酸钠为唯一碳源对亚硝酸盐氮和...
为确保寒冷地区冬季人工湿地的污水处理效果,采用从南四湖人工湿地中分离筛选出的耐低温菌Pseudomonas flava WD-3为研究对象,研究其在冬季不同梯度接种量(菌悬液的浓度为4.575×108个 · mL-1)和水力停留时间时在复合垂直流人工湿地中连续3个月内的污水处理效果,采用简化的Monod动力学模型对该菌在人工湿地中对污染物的去除进行模拟并验证,并讨论了该菌的投加量和水力停留时间与污...
为了研究Pseudomonas flava WD-3在复合垂直流人工湿地中对污水的处理效果，将其按照不同梯度接种量（菌悬液浓度为4.575×108 个·mL-1）投加到复合垂直流人工湿地中，研究其对污水中氨氮、CODCr、NO2--N、NO3--N、总磷的去除效果，确定该菌株的最佳投加量，建立降解动力学模型.结果表明，该菌株对污水中的有机污染物以及氮磷等营养物具有明显的去除效果.菌株的最佳投加量为...
采用富集培养法,从钢铁厂附近河流污泥中分离筛选到1株能同时降解苯酚与还原Cr(VI)的菌株JF122.在600 mg·L-1苯酚与1.2 mg·L-1 Cr(VI) 的条件下,采用单因素实验考察了温度、初始pH、该菌接种量等因素对其同时降解苯酚与还原Cr(VI)的影响,并通过正交试验L9(33)获得适宜的苯酚降解与Cr(VI)还原条件.结果表明,菌株JF122降解苯酚与还原Cr(VI)的适宜条件为...
Production of D-p-Hydroxyphenylglycine From DL-5-p-Hydroxyphenyl Hydantoin by Immobilized Pseudomonas Putida Cells in a Hollow Fiber Memgrane Bioreactor
D-p-Hydroxyphenylglycine Immobilized Pseudomonas putida cells
2009/3/26
Production of D-p-Hydroxyphenylglycine From DL-5-p-Hydroxyphenyl Hydantoin by Immobilized Pseudomonas Putida Cells in a Hollow Fiber Memgrane Bioreactor.
Protective Effect of Biomass Components Against Interfacial Inactivation of α-Pinene Oxide Lyase from Pseudomonas rhodesiae CIP 107491
bioconversion isonovalal interfacial inactivation
2009/2/23
α-Pinene oxide lyase is able to catalyze the cleavage of both rings of α-pinene oxide to form cis-2-methyl-5-isopropylhexa-2,5-dienal (isonovalal) with no cofactor requirements. This bioconversion, wh...
Optimization of Physical Parameters for Biodegradation of Caffeine by Pseudomonas sp.: A Statistical Approach
Caffeine degradation Pseudomonas sp. statistical optimization physical parameters
2008/10/26
Pseudomonas sp. NCIM 5235 capable of degrading high concentrations of caffeine has been previously isolated from the soil of coffee plantation area. The isolate was capable of degrading 6.4 g L-1 init...
Autolysis of the Proteinase from Pseudomonas fluorescens
Pseudomonas fluorescens proteinase autolysis proteinase gene
2008/3/31
The gene encoding the proteinase from Pseudomonas fluorescens was cloned and sequenced in an effort to identify the cleavage sites involved in its autolysis at 50°C. A single open reading frame consis...
Effect of High Hydrostatic Pressure on Escherichia coli and Pseudomonas fluorescens Strains in Ovine Milk
hydrostatic pressure Escherichia coli Pseudomonas fluorescens ovine milk
2008/3/27
Ovine milk that had been standardized to 6% fat was inoculated with Escherichia coli 405 CECT and Pseudomonas fluorescens 378 CECT at a rate of 106 and 107 cfu/ml, respectively, and treated with high ...
Purification and Characterization of Intracellular Aminopeptidase from Pseudomonas fluorescens ATCC 948
Pseudomonas fluorescens aminopeptidase characterization bitter peptides
2008/3/22
Pseudomonas fluorescens ATCC 948 expressed cell-associated peptidase activity, which was shown by subcellular fractionation to be primarily in the cytoplasmic fraction. An aminopeptidase of broad spec...
Proteinase Activity of Pseudomonas fluorescens Grown in Cold Milk Supplemented with Nitrogen and Carbon Sources
extracellular proteinase production Pseudomonas intracellular adenosine triphosphate milk supplementation
2008/3/22
Extracellular proteinase activity varied when Pseudomonas fluorescens was grown at 7°C in UHT milk supplemented with different substrates. Addition of glutamine (5 mM) and glutamic acid (10 mM) reduce...
Free D- and L-Amino Acids from Hydrolyzed Milk Proteins by Pseudomonas fluorescens ATCC 948
Pseudomonas fluorescens peptidases bitter taste D-amino acids
2008/3/18
Cell-associated peptidase activity of Pseudomonas fluorescens ATCC 948 was studied on hydrolyzed milk proteins. The substrate was produced by treatment of the UHT skim milk with neutral endoprotease B...
Influence of Milk Proteins on the Thermostability of the Lipase from Pseudomonas fluorescens 33
lipase milk proteins thermostability psychrotrophs
2008/3/18
The effects of some milk proteins on the thermostability of the lipase from Pseudomonas fluorescens 33 were investigated. All purified milk protein fractions except -casein that dissolved in phosphate...