Rhodococcus
Mostrando 1-12 de 415 artigos, teses e dissertações.
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1. Kinetic study and thermodynamic equilibrium modeling of the Co(II) and Mn(II) bioadsorption using the Rhodococcus opacus strain
Abstract Microbial biomass is considered a renewable and environmentally friendly resource. Thus, the research conducted a kinetic study and thermodynamic equilibrium modeling of the cobalt (Co) and manganese (Mn) bioadsorption process using the Rhodococcus opacus (RO) strain as a biosorbent. The inactive biomass subjected to 0.1 M NaOH pretreatment was brou
REM - International Engineering Journal. Publicado em: 2022
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2. Adhesion evaluation of the Rhodococcus opacus strain on an apatite surface
Abstract Adsorption of microorganisms and/or their different components onto a mineral surface would modify the surface characteristics of the mineral. Thus, this investigation evaluated the adsorption capacity of the Rhodococcus opacus strain onto an apatite surface. Zeta potential and contact angle measurements of the mineral showed dislocations of the val
REM, Int. Eng. J.. Publicado em: 2021-09
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3. Fundamental bioflotation aspects of hematite using an extracted Rhodococcus opacus by-product
Abstract The aim of this study is to assess the floatability of hematite using a crude biosurfactant (BS) extracted from Rhodococcus opacus. Throughout high-pressure ethanol extraction, unrefined surfactant was extracted from the bacteria with a yield of 0.3 g/L. An FTIR analysis on this extract, shows the presence of alcohol (–OH) and ketone (C=O) groups,
REM, Int. Eng. J.. Publicado em: 2021-09
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4. Clinical and pathological findings of Rhodococcus equi infection in foals
RESUMO: Infecção por Rhodococcus equi é considerado um dos maiores problemas sanitários para potros em todo o mundo. Para melhor compreender a apresentação clínica e patológica da enfermidade, foram avaliados vinte casos de infecção natural por R. equi em potros. Os casos são caracterizados de acordo com seus achados clínicos e patológicos e asp
Pesq. Vet. Bras.. Publicado em: 02/12/2019
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5. Evaluation of hematite and quartz flotation kinetics using surfactant produced by Rhodococcus erythropolis as bioreagent
Abstract The use of biosurfactants as reagents represents a promising alternative to the conventional surfactants used in the mineral industry because they may present low toxicity and high biodegradability. Therefore, this research studied the hematite and quartz flotation kinetics using surfactant produced by Rhodococcus erythropolis as bioreagent. The flo
REM, Int. Eng. J.. Publicado em: 16/09/2019
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6. BINARY CO-CULTURE SELECTION FROM MARINE-DERIVED MICROORGANISMS FOR DIFFERENTIAL PRODUCTION OF SPECIALIZED METABOLITES
Nowadays the discovery of new compounds from microorganisms has substantially decreased. Genomic studies have shown that certain genes are not expressed under standard laboratory conditions. In order to overcome this problem, several methods including microorganism co-culture have been developed. The aim of this work was to select binary co-cultures of marin
Quím. Nova. Publicado em: 26/08/2019
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7. Chemical constituents, antioxidant, antimicrobial and anti-lipase activities of composites derived from green tea, lemon peels and red wine lees
Resumo Novas fontes de nutracêuticos, compósitos derivados de extrato de chá verde, borras de vinhos tintos e extratos de cascas de limão foram produzidas. O primeiro compósito foi produzido a partir de extrato de chá verde e borras de vinhos tintos. O segundo compósito foi produzido de extrato de chá verde, borras de vinhos tintos e cascas de limão
Braz. J. Food Technol.. Publicado em: 29/07/2019
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8. Chronic cavitary pneumonia by Rhodococcus equi in a highly prevalent tuberculosis country: a diagnosis challenge
ABSTRACT Rhodococcus equi is a facultative aerobic, intracellular, non-motile, non-spore-forming, Gram-positive, weakly acid-fast coccobacillus belonging to the group of nocardioform actinomycetes. R. equi infections are rare opportunistic illnesses in patients with Acquired Immunodeficiency Syndrome (AIDS), associated with a high mortality rate. The most co
Rev. Inst. Med. trop. S. Paulo. Publicado em: 14/11/2018
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9. Rubber gloves biodegradation by a consortium, mixed culture and pure culture isolated from soil samples
Abstract An increasing production of natural rubber (NR) products has led to major challenges in waste management. In this study, the degradation of rubber latex gloves in a mineral salt medium (MSM) using a bacterial consortium, a mixed culture of the selected bacteria and a pure culture were studied. The highest 18% weight loss of the rubber gloves were de
Braz. J. Microbiol.. Publicado em: 2018-09
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10. Bactérias multirresistentes isoladas de artrite séptica equina
RESUMO: Artrite séptica é uma artropatia infecciosa debilitante de equinos, que requer diagnóstico precoce e intervenção terapêutica imediata, com intuito de evitar a degeneração de a cartilagem articular e a perda da capacidade atlética e de trabalho dos animais. Poucos estudos têm investigado a complexidade etiológica da afecção, bem como a pr
Pesq. Vet. Bras.. Publicado em: 2017-04
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11. Diversity of retrievable heterotrophic bacteria in Kongsfjorden, an Arctic fjord
Abstract The diversity and abundance of retrievable pelagic heterotrophic bacteria in Kongsfjorden, an Arctic fjord, was studied during the summer of 2011 (June, August, and September). Retrievable bacterial load ranged from 103 to 107 CFU L−1 in June, while it was 104-106 CFU L−1 in August and September. Based on 16S rRNA gene sequence similarities, a h
Braz. J. Microbiol.. Publicado em: 2017-03
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12. Atividade antibacteriana in vitro da própolis marrom
Resumo Objetivou-se avaliar a atividade antibacteriana in vitro da própolis marrom, por meio da determinação da Concentração Inibitória Mínima (CIM). O extrato alcoólico de própolis foi obtido de 35 g de própolis bruta macerada em 65 mL de álcool de cereais. As concentrações do extrato de própolis usadas foram: 75mg/mL; 56,4mg/mL; 37,5mg/mL; 18
Pesq. Vet. Bras.. Publicado em: 2016-04