Immobilized Biomass
Mostrando 1-12 de 65 artigos, teses e dissertações.
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1. THERMOPHILIC BIOMETHANE PRODUCTION BY VINASSE IN AN AnSBBR: START-UP STRATEGY AND PERFORMANCE OPTIMIZATION
Abstract Thermophilic anaerobic digestion treatment of industrial wastewater generated at high temperatures can be used as an alternative for environmental pollution control and bioenergy production. Therefore, this study investigated thermophilic anaerobic reactors containing immobilized biomass (AnSBBR) to treat vinasse for methane production, in batch and
Braz. J. Chem. Eng.. Publicado em: 30/09/2019
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2. Efficiency of decolorization of different dyes using fungal biomass immobilized on different solid supports
Abstract Different technologies may be used for decolorization of wastewater containing dyes. Among them, biological processes are the most promising because they seem to be environmentally safe. The aim of this study was to determine the efficiency of decolorization of two dyes belonging to different classes (azo and triphenylmethane dyes) by immobilized bi
Braz. J. Microbiol.. Publicado em: 2018-06
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3. BIOSYNTHESIS OF INDUSTRIAL ENZYMES BY FREE AND IMMOBILIZED Alicyclobacillus spp IN DIFFERENT MATRICES AND THE USE OF ULTRAFILTRATION IN THE ENZYMES CONCENTRATION
The biosynthesis of amylase and collagenase, produced by A. acidocaldarius and A. sendaiensis respectively, were studied, and different matrices evaluated for the microorganisms immobilization and enzymes production optimization, such as loofa sponge, alginate-sponge and alginate, followed by concentration through ultrafiltration. Using a wheat bran substrat
Quím. Nova. Publicado em: 2017-09
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4. Fermentation process for production of apple-based kefir vinegar: microbiological, chemical and sensory analysis
Abstract The aim of this study was to develop a kefir apple-based vinegar and evaluate this fermentation process using new methodology with Biospeckle Laser. Brazilian kefir grains were inoculated in apple must for vinegar production. In this study, the microbial community present in kefir, and correspondent vinegar, was investigated using Matrix Assisted La
Braz. J. Microbiol.. Publicado em: 2017-07
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5. Zymomonas mobilis IMMOBILIZED ON LOOFA SPONGE AND SUGARCANE BAGASSE FOR LEVAN AND ETHANOL PRODUCTION USING REPEATED BATCH FERMENTATION
Abstract Two experiments were carried out using loofa sponge and sugarcane bagasse as immobilization support. First a 2(5-2) design of experiments was realized with the following independent variables: sucrose concentration; pH; incubation time and agitation. Based on the best results observed in this experiment, the capacity for reuse of the supports in sub
Braz. J. Chem. Eng.. Publicado em: 2017-04
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6. POTENCIAL CATALÍTICO DE LIPASES LIGADAS AO MICÉLIO DE FUNGOS FILAMENTOSOS EM PROCESSOS DE BIOTRANSFORMAÇÃO
Over the past decades, mycelium-bound lipase of filamentous fungus has been extensively studied as an alternative biocatalyst in biotransformation processes. Mycelium-bound lipase can be used directly as suspended free cells or immobilized within biomass support particles as whole cells biocatalyst. In the latter, cells can be immobilized in situ or extra si
Quím. Nova. Publicado em: 2017-01
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7. BIOHYDROGEN FROM CHEESE WHEY TREATMENT IN AN AnSBBR: ACHIEVING PROCESS STABILITY
AbstractAn AnSBBR (anaerobic sequencing batch reactor containing biomass immobilized on an inert support) with liquid phase recirculation, containing a 3.5 L working volume, treated 1.5 L of cheese whey wastewater in 3 and 4 h cycles at 30 ºC to produce biohydrogen. From startup the bioreactor presented process instability. To overcome this problem the foll
Braz. J. Chem. Eng.. Publicado em: 2015-06
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8. AnSBBR with circulation applied to biohydrogen production treating sucrose based wastewater: effects of organic loading, influent concentration and cycle length
An anaerobic sequencing batch biofilm reactor (AnSBBR) containing immobilized biomass and operating with recirculation of the liquid phase (total liquid volume 4.5 L; treated volume per cycle 1.9 L) was used to treat sucrose-based wastewater at 30 ºC and produce biohydrogen. The influence of applied volumetric organic load was studied by varying the influen
Braz. J. Chem. Eng.. Publicado em: 2014-09
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9. Hexavalent chromium reduction by immobilized cells of Bacillus sphaericus AND 303
Bacillus sphaericus AND 303, a Cr(VI)-resistant and reducing bacterium reported from serpentine outcrops of Andaman was evaluated for Cr(VI) reduction using immobilized cells under batch culture. Screening of inert matrices for entrapment of whole cells indicated that polyvinyl alchohol-alginate was the most effective one reducing 87.5% of 20 µM Cr(VI) in 2
Braz. arch. biol. technol.. Publicado em: 2013-06
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10. Influência da carga orgânica na produção de biohidrogênio em ASBBR com agitação tratando água residuária sintética / Influence of influent concentration and feed time on biohydrogen production in an ASBBR with agitation treating sucrose based wastewater
A mechanically stirred anaerobic sequencing batch reactor containing immobilized biomass treated sucrose-based synthetic wastewater to produce biohydrogen. The system was inoculated with sludge from an anaerobic methanogenic reactor. The following have been assessed: production of biohydrogen, yield per applied and removed load, reactor stability and efficie
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 23/03/2012
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11. Produção de xilo-oligossacarídeos a partir de lignocelulósicos pré-tratados com xilanases imobilizadas e estabilzadas
Endoxylanase, an important industrial enzyme, cleaves ß-1,4-xylanosidic bounds in xylan chains, main plant hemicellulose component. Xylan can be explored to produce many products, among them xylo-oligosaccharides, XOS, made of xylose monomers (2 to 7 units). XOS are considered to be prebiotic ingredients and can improve humans health. XOS are produced by xy
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 28/02/2012
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12. Characterization of immobilized biomass by amplified rDNA restriction analysis (ARDRA) in an anaerobic sequencing-batch biofilm reactor (ASBBR) for the treatment of industrial wastewater
The performance of an anaerobic sequencing-batch biofilm reactor (ASBBR- laboratory scale- 14L )containing biomass immobilized on coal was evaluated for the removal of elevated concentrations of sulfate (between 200 and 3,000 mg SO4-2·L-1) from industrial wastewater effluents. The ASBBR was shown to be efficient for removal of organic material (between 90%
Brazilian Archives of Biology and Technology. Publicado em: 2012-08