Thermophiles
Mostrando 1-12 de 91 artigos, teses e dissertações.
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1. The Mutagenesis of Lactobacillus Thermophilus for Enhanced L-(+)-Lactic Acid Accumulation Induced by Heavy Ion Irradiation
ABSTRACT Screening promising L. thermophiles with high productivity, high efficiency and strong adaptability are very important in lactic acid industry. For this purpose, 80MeV/u carbon ions were applied to irradiate L. thermophiles. After high-throughput screening, a mutant, named SRZ50, was obtained. Different carbon sources or nitrogen sources were provid
Braz. arch. biol. technol.. Publicado em: 14/06/2018
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2. Influência de diferentes tipos de micro-organismos na contagem bacteriana total e de células somáticas por citometria de fluxo e na composição centesimal do leite cru
Bacterial count was made of 179 raw milk samples from different dairy farms of Minas Gerais, Brazil, through the methods of flow cytometry and standard plate count, the reference method. The results obtained by different methods were analyzed by Pearson correlation. There was significant correlation between the values of psychrotrophic and mesophilic counts
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 27/02/2012
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3. Bioprospecting thermophiles for cellulase production: a review
Most of the potential bioprospecting is currently related to the study of the extremophiles and their potential use in industrial processes. Recently microbial cellulases find applications in various industries and constitute a major group of industrial enzymes. Considerable amount of work has been done on microbial cellulases, especially with resurgence of
Braz. J. Microbiol.. Publicado em: 2012-09
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4. Optimization of fermentation conditions for cellulases production by Bacillus licheniformis MVS1 and Bacillus sp. MVS3 isolated from Indian hot spring
The aim of this work was to study the effect of some nutritional and environmental factors on the production of cellulases, in particular endoglucanase (CMCase) and exoglucanases (FPase) from Bacillus licheniformis MVS1 and Bacillus sp. MVS3 isolated from an Indian hot spring. The characterization study indicated that the optimum pH and temperature value was
Brazilian Archives of Biology and Technology. Publicado em: 2012-08
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5. The genetic diversity of genus Bacillus and the related genera revealed by 16S rRNA gene sequences and ardra analyses isolated from geothermal regions of turkey
Previously isolated 115 endospore-forming bacilli were basically grouped according to their temperature requirements for growth: the thermophiles (74%), the facultative thermophiles (14%) and the mesophiles (12%). These isolates were taken into 16S rRNA gene sequence analyses, and they were clustered among the 7 genera: Anoxybacillus, Aeribacillus, Bacillus,
Brazilian Journal of Microbiology. Publicado em: 2012-03
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6. Caracterização taxonomica de linhagens de Alicyclobacillus ssp. isolados na industria de suco concentrado de laranja. / Characterization taxonomic of strains of Alicyclobacillus ssp. isolated in the industry of concentrade juice of orange.
Trinta linhagens de bactérias acidotermofílicas isoladas do processamento industrial de suco de laranja concentrado congelado (Frozen Concentrated Orange Juice, FCOJ) em diferentes regiões do estado de São Paulo foram estudadas, utilizando-se uma abordagem polifásica, a fim de se determinar a diversidade e potencial deteriogênico destas em processos de
Publicado em: 2005
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7. Fungos microaerobios na bioconversão de material lignocelulosico
Cellulose accounts for the major part of lignocellulose found in nature, and consequently, its degradation is essential for the operation of the global carbon cycle. Lignocellulose, such as wood, is mainly composed of a mixture of cellulose (40%), hemicellulose (20-30%), and lignin (15-30%). An association of enzymes acting in a concerted fashion degrades ce
Publicado em: 2003
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8. Fatty Acid Distribution in Mesophilic and Thermophilic Strains of the Genus Bacillus
The fatty acid distribution of three mesophilic and three thermophilic strains of the genus Bacillus was determined by gas chromatography of the fatty acid methyl esters. Fatty acid i-15:0 was the most abundant in both the mesophiles (51%) and the thermophiles (41%). The second most abundant fatty acid was a-15:0 in the mesophiles (22%), and i-17:0 in the th
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9. Coliforms, Enterococci, Thermodurics, Thermophiles, and Psychrophiles in Untreated Farm Pond Waters
Untreated waters from ten farm ponds located in central, north central, southeastern, and southwestern Ohio were examined for numbers of coliforms, enterococci, thermodurics, thermophiles, and psychrophiles. The median population densities per 100 ml water for all ponds were: coliforms, 23; enterococci, 3.6; thermodurics, 6,000; thermophiles, 450; psychrophi
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10. Characterization and Stability of Ribosomes from Mesophilic and Thermophilic Bacteria
Ribosomes were isolated from three mesophilic and three thermophilic strains of Bacillus. The ribosomes consisted of about 55% protein and 45% ribonucleic acid. Average ratios for the absorbance at 260/235 and 260/280 mμ were 1.77 and 1.92 for the mesophiles and 1.63 and 1.84 for the thermophiles. Ultracentrifugation revealed mainly components with sediment
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11. Pressure Stabilization of Proteins from Extreme Thermophiles
We describe the stabilization by pressure of enzymes, including a hydrogenase from Methanococcus jannaschii, an extremely thermophilic deep-sea methanogen. This is the first published report of proteins from thermophiles being stabilized by pressure. Inactivation studies of partially purified hydrogenases from an extreme thermophile (Methanococcus igneus), a
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12. Boundary Between Bacterial Mesophilism and Thermophilism
Bausum, Howard T. (Fort Detrick, Frederick, Md.), and Thomas S. Matney. Boundary between bacterial mesophilism and thermophilism. J. Bacteriol. 90:50–53. 1965.—The temperature boundary between bacterial mesophilism and thermophilism has been identified as 44 to 52 C. Facultative thermophiles growing in the mesophilic range require a brief period of adapt