scholarly journals ISOLATION AND CHARACTERIZATION OF SULFUR-OXIDIZING BACTERIA (SOB) FROM WASTE OF RUBBER FACTORY AND PAPER IN JAMBI

2019 ◽  
Vol 1 (2) ◽  
pp. 131-139
Author(s):  
Suparjo
Keyword(s):  
Soil Fertility ◽  
Biochemical Characterization ◽  
Selective Medium ◽  
High Concentration ◽  
Isolation And Characterization ◽  
Sulfur Bacteria ◽  
Ph Reduction ◽  
Sulfur Oxidizing ◽  
Different Sources

Sewage contains high concentration of sulfate and contaminates ground water supply. The production process in the factory produced sewage containing high amount of sulfur such as sulphide and sulphate. Sulfur bacteria, which are capable of oxidizing, reducing or partially oxidizing inorganic sulfur compounds such as Thiomicrospira, Thiothrix, Desulforomonas, Achromatium, and a group of Thiobacillus. Utilization of sulfur bacteria has done in attemp to find sewage bioremediation agents as well as to promote soil fertility. Isolation and characterization were carried out by growing the bacteria in the starkey selective medium, including pH reduction test, morphology, physiology and biochemical characterization. It has been observed that out of 2 isolates from different sources of samples (rubber and paper sewage), only one isolates related to sulfur-oxidizing bacterium (SOB) while  the isolates AE01 related to true sulfur-oxidizing bacterium in genus Thiobacillus.

Isolation and characterization of lignocellulosic fiber from jute bast by the organic solvent degumming system: an alkali-free method

2021 ◽  
pp. 004051752110154
Author(s):  
Zhihui Qin ◽  
Shuyuan Zhao ◽  
Liu Liu ◽  
Zhaohe Shi ◽  
Longdi Cheng ◽  
...  
Keyword(s):  
National Standards ◽  
X Ray Diffraction ◽  
High Concentration ◽  
X Ray ◽  
Lignocellulosic Fibers ◽  
Lignocellulosic Fiber ◽  
Isolation And Characterization ◽  
Alkali Consumption ◽  
Scanning Electron

Degumming is the dominant method for insolating lignocellulosic fibers in textile applications. Traditional alkaline degumming (TAL), as a common method, requires a high-concentration alkali and has been a severe challenge to the environment. In the research reported here, the possibility of innovative jute degumming by organic solvents 1-2 propylene glycol and a combination of additive green oxygen (GO-OS) was studied. The results revealed that fibers could be extracted by this system (under condition of 0.9% GO-OS, 180°C, 120 min), and obtained fibers with higher breaking tenacity (7.1 cN/dtex), yield (65.7%), breaking elongation (2.87%) and residual gum (11.7%), which all meet the requirement of the relevant Chinese Textile National Standards. Notably, the required reaction time (120 min) of the GO-OS system was 180 min shorter than that of the TAL method. Furthermore, the modifications introduced by the degumming effect on physicochemical aspects were characterized and confirmed by Fourier transform infrared spectroscopy, scanning electron microscopy and X-ray diffraction. This study provides a promising degumming method for separating jute lignocellulose without acid and alkali consumption.

Isolation and Characterization of Bifidobacteria from diverse ecosystems

2019 ◽  
Vol 8 (2) ◽  
pp. 43-48
Author(s):  
Halima Aurass Bahloul ◽  
Hadadji Miloud ◽  
Mebrouk Kihal
Keyword(s):  
Newborn Infants ◽  
Food Samples ◽  
High Concentration ◽  
Dominant Group ◽  
Human Gut ◽  
Important Place ◽  
Isolation And Characterization ◽  
Probiotic Strains ◽  
Commercial Milk

Bifidobacteria represent the largest group of human intes nal bacteria. They have an important place in human health and represent the dominant group of micro ora. For this reason, they are key members of the human gut microbiota, particularly during the first one to two years following birth. The aim of this study was to test the sensibility of Bifidobacterium isolated from some strains at different concentrations of salinity and high concentration of bile as a criterion to select probiotic strains. Following the behavior of strains of Bifidobacteria isolated from different ecosystems was considered in order to develop the therapeu c aliment food . Samples from newborn infants aged 3 months, bee intestine, fermented commercial milk and yoghurt of bifidus containing Bifidobacteria was used and the isolated strains belonged to -breve and -longum species. The results of resisitance of our species of Bifidobacteria demonstrated a total inibition of croissance at 5.5% of NaCl but in 5% media of NaCl we observed a moderate croissance at di erent me of kinetics croissance .

THE ALKALOIDS OF FUMARIACEOUS PLANTS: VIII. CORYDALIS AUREA, WILLD. AND THE CONSTITUTION OF BICUCINE

1933 ◽  
Vol 9 (5) ◽  
pp. 436-442 ◽  
Author(s):  
R. H. F. Manske
Keyword(s):  
Empirical Formula ◽  
Hydroxy Acid ◽  
Phenolic Hydroxyl ◽  
High Concentration ◽  
Chemical Examination ◽  
Low Concentration ◽  
Isolation And Characterization ◽  
Stems And Leaves ◽  
Constitutional Analysis

The chemical examination of the alkaloids of Corydalis aurea has shown an unusual complexity and of the total of more than ten alkaloids thus far isolated only six are now described. The record deals chiefly with the stems and leaves of the plant in which protopine was present in exceptionally low concentration (0.025%). Equally exceptional is its high concentration m the roots (1.6%). l-Tetrahydropalmatine constituted the largest fraction of the remaining alkaloids, and its present isolation is the first on record although the d-form was previously known. Two new and well-characterized alkaloids, which have been named capaurine and capauridine, respectively, are isomeric and are best represented by the empirical formula C21H27O5N. Both contain one phenolic hydroxyl and four methoxyl groups, and yield on methylation non-phenolic bases which do not appear to be identical. The presence of two bases, bicuculline and bicucine, which were first recorded in this series of papers, has again been demonstrated.The constitutional analysis of the new bases, as well as the isolation and characterization of the minor alkaloids, is in progress.In an appended note it is shown that bicuculline and bicucine are closely related and interconvertible. The latter is the free γ-hydroxy acid of which the former is the lactone.

Isolation and characterization of Acidithiobacillus caldus from a sulfur-oxidizing bacterial biosensor and its role in detection of toxic chemicals

2010 ◽  
Vol 82 (2) ◽  
pp. 151-155 ◽  
Author(s):  
Sedky H.A. Hassan ◽  
Steven W. Van Ginkel ◽  
Sung-Min Kim ◽  
Sung-Hwan Yoon ◽  
Jin-Ho Joo ◽  
...  
Keyword(s):  
Toxic Chemicals ◽  
Bacterial Biosensor ◽  
Acidithiobacillus Caldus ◽  
Isolation And Characterization ◽  
Sulfur Oxidizing

Isolation and characterization of Rhodococcus sp. NB5 capable of degrading a high concentration of nitrobenzene

2011 ◽  
Vol 51 (4) ◽  
pp. 397-403 ◽  
Author(s):  
Hui Lin ◽  
Xue-jiao Chen ◽  
Hai-tao Ding ◽  
Xiao-ming Jia ◽  
Yu-hua Zhao
Keyword(s):  
High Concentration ◽  
Isolation And Characterization ◽  
Rhodococcus Sp

scholarly journals Isolation and Characterization of Acinetobacter baumannii Recovered from Campylobacter Selective Medium

2016 ◽  
Vol 7 ◽  
Author(s):  
Dinesh M. Fernando ◽  
Izhar U. H. Khan ◽  
Rakesh Patidar ◽  
David R. Lapen ◽  
Guylaine Talbot ◽  
...  
Keyword(s):  
Acinetobacter Baumannii ◽  
Selective Medium ◽  
Isolation And Characterization

Isolation and characterization of a mixotrophic sulfur-oxidizing Thermus scotoductus

Extremophiles ◽  
2001 ◽  
Vol 5 (1) ◽  
pp. 45-51 ◽  
Author(s):  
Sigurlaug Skirnisdottir ◽  
Gudmundur O. Hreggvidsson ◽  
Olle Holst ◽  
Jakob K. Kristjansson
Keyword(s):  
Isolation And Characterization ◽  
Sulfur Oxidizing

scholarly journals Isolation and Characterization of Xenobiotic Pesticide Degrading Bacterial Species in Flower Farms Around Lake Naivasha, Kenya

2018 ◽  
Vol 1 (1) ◽  
Keyword(s):  
Biochemical Characterization ◽  
Bacterial Species ◽  
Rhodococcus Erythropolis ◽  
Soil Samples ◽  
Lake Naivasha ◽  
Organophosphate Pesticide ◽  
Lower Growth ◽  
Isolation And Characterization ◽  
Cell Counts

Certain microorganisms especially bacteria and fungi are able to use xenobiotic organic compounds as their carbon and nitrogen source for metabolism. Flower farms around lake Naivasha basin uses several agrochemicals especially pesticides to control pests and improve flower production. The aim of this study was to isolate and characterize morphologically and biochemically the main bacterial species that are able to grow and tolerate the pesticide contaminated farm soils. Soil samples were collected from randomly selected five greenhouses from each five flower farms namely Crescent, Elsamere, Karuturi, Malewa and Sewage farms around Lake Naivasha basin. The collected samples were processed for bacterial isolation using the nutrient agar, mac’ Conkey agar, blood agar, Luria-Bertani and Minimum Salt Media nutrient media. The conventional methods of swabbing and streaking were used. Pure colonies of isolates organisms were identified and characterized using standard microbiological technique. Morphological, cultural and biochemical characterization of bacterial species isolated from the flower farm soil samples identified mainly Pseudomonas auriginosa, Escherichia coli, Rhodococcus erythropolis and Bacillus subtilis species. Bacterial growth in pesticide consortia was quantified by monitoring colony growth of the species in liquid culture over time. The viable cell counts were determined turbidimetrically at O.D696nm. All the isolated bacterial species were able to grow in flower farm soil contaminated with organochloride and organophosphate pesticide residues. B. subtilis recorded the highest growth at 1.77±0.07 O.D696nm in pesticide mixture consortia. There was lower growth in organochloride pesticide consortia as compared to organophosphate pesticide consortia.

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