Carbon And Nitrogen Source
Mostrando 13-24 de 576 artigos, teses e dissertações.
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13. Surface response methodology for the optimization of lipase production under submerged fermentation by filamentous fungi
Abstract A Plackett–Burman Factorial Design of 16 experiments was conducted to assess the influence of nine factors on the production of lipases by filamentous fungi. The factors investigated were bran type (used as the main carbon source), nitrogen source, nitrogen source concentration, inducer, inducer concentration, fungal strain (Aspergillus niger or A
Braz. J. Microbiol.. Publicado em: 2016-06
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14. NITROGEN SOURCES ON TPOMW VALORIZATION THROUGH SOLID STATE FERMENTATION PERFORMED BY Yarrowia lipolytica
Abstract This manuscript reports the valorization of two-phase olive mill waste (TPOMW) as raw material and carbon source for solid state fermentation using Yarrowia lipolytica as biocatalyst. Due to its chemical characteristics, a combination of different raw materials (TPOMW and wheat bran, WB) was evaluated and two distinct nitrogen sources were applied a
Braz. J. Chem. Eng.. Publicado em: 2016-06
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15. Enhanced production and organic solvent stability of a protease fromBrevibacillus laterosporus strain PAP04
A bacterial strain (PAP04) isolated from cattle farm soil was shown to produce an extracellular, solvent-stable protease. Sequence analysis using 16S rRNA showed that this strain was highly homologous (99%) to Brevibacillus laterosporus. Growth conditions that optimize protease production in this strain were determined as maltose (carbon source), skim milk (
Braz J Med Biol Res. Publicado em: 18/03/2016
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16. Cultural conditions on the production of extracellular enzymes by Trichoderma isolates from tobacco rhizosphere
Abstract Twelve isolates of Trichoderma spp. isolated from tobacco rhizosphere were evaluated for their ability to produce chitinase and β-1,3-glucanase extracellular hydrolytic enzymes. Isolates ThJt1 and TvHt2, out of 12 isolates, produced maximum activities of chitinase and β-1,3-glucanase, respectively. In vitro production of chitinase and β-1,3-gluca
Braz. J. Microbiol.. Publicado em: 2016-03
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17. Carbaryl degradation by bacterial isolates from a soil ecosystem of the Gaza Strip
Abstract Carbaryl is an important and widely used insecticide that pollutes soil and water systems. Bacteria from the local soil ecosystem of the Gaza Strip capable of utilizing carbaryl as the sole source of carbon and nitrogen were isolated and identified as belonging to Bacillus, Morganella, Pseudomonas, Aeromonas and Corynebacterium genera. Carbaryl biod
Braz. J. Microbiol.. Publicado em: 2015-12
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18. Production of Inulinase by Free and Immobilized Cells of Penicillium funiculosum p.36
The aim of this work was to optimize the growth conditions and continuous production of the enzyme using free and immobilized cells of inulinase by Penicillium funiculosum. The highest yield of enzyme (163.5U/mL) was obtained when the culture was incubated at 27oC and 200 rpm for 96h in a fermentation medium containing both inulin and peptone as sole carbon
Braz. arch. biol. technol.. Publicado em: 2015-08
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19. Polycyclic Aromatic Hydrocarbons in Superficial Sediments of the Negro River in the Amazon Region of Brazil
Polycyclic aromatic hydrocarbons (PAHs) were identified and quantified in samples of superficial sediments of the Negro River, in the Amazon region of Brazil, through analyses performed by GC/MS. Total PAH concentration that includes parent and alkylated PAHs ranged from 6.5 to 5348 ng g-1 of dry weight. The ∑16 PAHs prioritized in environmen
J. Braz. Chem. Soc.. Publicado em: 2015-07
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20. Production and characterization of di-rhamnolipid produced by Pseudomonas aeruginosa TMN
Pseudomonas aeruginosa TMN was used to produce rhamnolipid (RL) from a variety of carbon and nitrogen substrates. The most favorable carbon sources for RL production were glucose and glycerol (both at 40 g/L), giving a RL yield of 0.3 and 0.25 g/L, respectively. Meanwhile, sodium nitrate appeared to be the preferable nitrogen source, resulting in a RL produc
Braz. J. Chem. Eng.. Publicado em: 2014-12
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21. Concomitant production of detergent compatible enzymes by Bacillus flexus XJU-1
A soil screened Bacillus flexus XJU-1 was induced to simultaneously produce alkaline amylase, alkaline lipase and alkaline protease at their optimum levels on a common medium under submerged fermentation. The basal cultivation medium consisted of 0.5% casein, 0.5% starch and 0.5% cottonseedoil as an inducer forprotease, amylase, and lipase, respectively. The
Braz. J. Microbiol.. Publicado em: 2014-09
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22. Bioprocessing of some agro-industrial residues for endoglucanase production by the new subsp.; Streptomyces albogriseolus subsp. cellulolyticus strain NEAE-J
The use of low cost agro-industrial residues for the production of industrial enzymes is one of the ways to reduce significantly production costs. Cellulase producing actinomycetes were isolated from soil and decayed agricultural wastes. Among them, a potential culture, strain NEAE-J, was selected and identified on the basis of morphological, cultural, physi
Braz. J. Microbiol.. Publicado em: 05/08/2014
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23. Purification and Characterization of a Polygalacturonase Produced by Wickerhamomyces anomalus
The aim of this work was to study the purification and physicochemical properties of an endo-polygalacturonase (PG) produced by Wickerhamomyces anomalus isolated from the citrus fruit peels. The enzyme was purified to homogeneity from the culture filtrate of W. anomalus grown on the yeast nitrogen base medium with glucose as carbon and energy source and citr
Braz. arch. biol. technol.. Publicado em: 2014-08
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24. Optimization of biodegradable plastic production on sugar cane molasses in Enterobacter sp. SEL2
Contaminated environments have a large number of bacteria which can accumulate PHA as their energy reserves. Out of 54 isolated bacterial strains from three groups of contaminated sites 48 were found PHA positive. The sites were grouped on the basis of the type of carbon sources i.e. sugars, fatty acids and much diverse type. Strains MFD5, MFD11, UML3, USL2,
Braz. J. Microbiol.. Publicado em: 2014-06