Volatile Sulfur Compounds
Mostrando 1-12 de 33 artigos, teses e dissertações.
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1. Biologically Active Volatile Organic Compounds (VOCs) Produced by Rhizospheric Actinobacteria Strains Inhibit the Growth of the Phytopathogen Colletotrichum musae
The antifungal potential of volatile organic compounds (VOCs) produced by actinobacterial strains Streptomyces sp. (ACTB-77) and Amycolatopsis sp. (ACTB-290) from the rhizosphere of Caatinga plants against Colletotrichum musae was investigated. VOCs produced by these microorganisms (axenic and co-culture) were investigated using headspace-solid phase micro-e
Journal of the Brazilian Chemical Society. Publicado em: 2022
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2. The effects of adding garlic (Allium sativum L.) on the volatile composition and quality properties of yogurt
Abstract In this study, the effects of adding garlic (Allium sativum L.) of different origins on the volatile composition and quality properties of yogurt were investigated on day 1, 7 and 14 of storage. The addition of garlic did not cause a decrease in the total specific microorganism count (>107) in yogurt samples, and it led to a significant decrease in
Food Sci. Technol. Publicado em: 2020-12
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3. Effects of stress hormones on the production of volatile sulfur compounds by periodontopathogenic bacteria
Little is known about the effects of stress hormones on the etiologic agents of halitosis. Thus, the aim of this study was to evaluate in vitro the effects of adrenaline (ADR), noradrenaline (NA) and cortisol (CORT) on bacteria that produce volatile sulfur compounds (VSC), the major gases responsible for bad breath. Cultures of Fusobacterium nucleatum (Fn),
Braz. oral res.. Publicado em: 11/06/2014
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4. Análise da alteração dos níveis de compostos sulfurados voláteis no hálito por meio de dois protocolos de higene bucal. / Analysis of the changing levels of volatile sulfur compounds in breath through two protocols oral highlands.
O objetivo deste estudo clínico foi avaliar a eficácia de dois regimes de higiene bucal em alterar os níveis de compostos sulfurados voláteis (CSV) no hálito e as proporções dos microrganismos bucais. Para este fim, 70 indivíduos adultos previamente selecionados participaram de uma fase de pré-tratamento de 10 dias, onde foram instruídos a escovar
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 29/02/2012
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5. Composição química e propriedades funcionais no processamento de vinagres / Chemical composition and functional properties in the processing fo vinegar
The fruit vinegars increasingly become popular on the planet, being produced from various crops or their residues, using classical and modern techniques. These products have great variety of organic acids, vitamins, minerals, phenolic compounds and other elements with important physiological functions. Vinegar higher quality depends more on their secondary c
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 21/09/2011
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6. Influence of anxiety and experimenter gender on the volatile sulfur compounds and salivary biomarkers production / Influencia da ansiedade e do genero do avaliador sobre a produção de compostos sulfurados volateis e biomarcadores salivares
A halitose é a emanação de odores desagradáveis pelas narinas e pela cavidade oral, devido à produção de compostos sulfurados voláteis (CSV) originados do metabolismo bacteriano, geralmente relacionados à higiene ou alterações bucais. Porém, fatores emocionais e o ciclo menstrual também influenciam a produção de CSV. Neste contexto, e consider
Publicado em: 2010
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7. Estudo termodinamico do equilibrio liquido-liquido visando a remoção do enxofre do oleo diesel com liquidos ionicos / Thermodynamic study of liquid-liquid equilibrium aiming sulfur removal by using ionic liquids
The sulfur contaminants more difficult to remove from diesel oil by hydrodesulfuration process (HDS) are the sterically hindered aromatic compounds, like dibenzothiophene (DBT), and its alkylated derivatives 4-methyl-dibenzothiophene (4-MDBT) and 4,6-dimethyl-dibenzothiophene (4,6-DMDBT), commonly called DBTs. Increasing the number of methyl groups attached
Publicado em: 2009
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8. Halitosis: a review of associated factors and therapeutic approach
Halitosis or bad breath is an oral health condition characterized by unpleasant odors emanating consistently from the oral cavity. The origin of halitosis may be related both to systemic and oral conditions, but a large percentage of cases, about 85%, are generally related to an oral cause. Causes include certain foods, poor oral health care, improper cleani
Braz. oral res.. Publicado em: 2008-08
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9. Evaluation of oral halitosis parameters in patients submitted to the head and neck radiotherapy / Avaliação dos parâmetros de halitose e sialometria em pacientes submetidos à radioterapia de cabeça e pescoço
The aim of this study was to verify the halitosis parameters in patients who had received head and neck radiotherapy. The degree of halitosis was determined through the presence of tongue coating, classified according to its dry weight; the salivary flow rate, the BANATM test and HalimeterTM oral measurements. A total of 48 subjects were examined, which were
Publicado em: 2007
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10. Influence of anxiety and menstrual cycle on the production of volatile sulfur compounds in helthy individuals / Influencia do estado de ansiedade e do ciclo menstrual sobre a produção de compostos sulfurados volateis em individuos saudaveis
Alterações emocionais têm sido relacionadas à ocorrência da halitose que é caracterizada pelo aumento na produção de compostos sulfurados voláteis (CSV) no arbucal exalado. Além disso, oscilações hormonais do ciclo menstrual também têm sido relacionadas a alterações na homeostasia bucal. Porém, ainda não está esclarecida a relação entre
Publicado em: 2006
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11. Vegetal bioindicators of atmospheric pollution: a contribution to community health / "Bioindicadores vegetais de poluição atmosférica: uma contribuição para a saúde da comunidade"
Air quality in urban and industrial areas tends to present undesirable concentrations of contaminants, without the availability of a broad monitoring system, given the sophistication of conventional physical-chemical methods, which require high expenditure for implantation, operation and maintenance. These costs can be reduced by the adoption of the compleme
Publicado em: 2004
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12. Evaluation of oral and nasal odor in patients with and without cleft lip and/or palate / Avaliação dos parâmetros de halitose bucal e nasal em pacientes com e sem fissura de lábio e/ou palato
The aim of this study was to investigate the relationship between the parameters of halitosis in patients with cleft lip and/or palate and post-graduation students of the Bauru Dental School (FOB) University of Sao Paulo, taking into account the presence of tongue coating, classified according to its dry weight, salivary flow rate, BANATM test and Halimet
Publicado em: 2003