Naphthalene
Mostrando 1-12 de 445 artigos, teses e dissertações.
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1. Postharvest quality of ‘Brookfield’ apple field-treated with naphthalene acetic acid alone or combined with other growth regulators
ABSTRACT The Gala cultivars represent about 65% of the Brazilian apple production, however, it has a short harvest period, making necessary to use technologies that anticipate or delay fruit maturation. A widely used technology is the preharvest application of growth regulators. The objective of this investigation was to evaluate the effect of preharvest app
Bragantia. Publicado em: 2020-03
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2. Inhibition of Zika Virus Replication by Synthetic Bis-Naphthoquinones
Zika virus (ZIKV) is a mosquito-borne pathogen which is a current global public health concern. There are currently no approved vaccines or antivirals against ZIKV infection. Taking into account that naphthoquinones have shown promising antiviral activity, the aim of this study was to describe the screening of two bis-naphthoquinones series against ZIKV. Twe
J. Braz. Chem. Soc.. Publicado em: 12/08/2019
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3. Propagação in vitro de Angelonia integérrima
Resumo Devido à dificuldade de obtenção de mudas de Agelonia integerrima, espécie com potencial ornamental, a partir de sementes, por métodos convencionais, foram desenvolvidos estudos com o objetivo de testar a viabilidade da produção de mudas in vitro. Foram conduzidos quatro experimentos: a) germinação de sementes armazenadas em dois locais (ambi
Rodriguésia. Publicado em: 19/06/2019
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4. Ecophysiology, genotoxicity, histopathology, and gene responses of naphthalene injected Colossoma macropomum (Cuvier, 1818) exposed to hypoxia
Abstract The present study aimed to evaluate the biological responses of Colossoma macropomum to naphthalene injection and subsequent hypoxia exposure, emphasizing the expression of the tumor suppressor gene tp53. Tambaquis were intraperitoneally injected with naphthalene (50 mg/kg) and, after 96 hours, the fish were transferred to respirometry chambers and,
Genet. Mol. Biol.. Publicado em: 13/06/2019
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5. Effects of an Auxin and a brassinosteroid on physical, chemical and biochemical attributes of ‘Galaxy’ apples
RESUMO: O objetivo deste estudo foi avaliar a ação do ácido naftaleno acético (ANA) e do brassinosteroide (catasterona), aplicados a cada 15 (safra 2015/16) ou 21 (safra 2016/17) dias a partir dos 40 dias após a plena floração, nos atributos físico-químicos e bioquímicos de maçãs ‘Galaxy’. O estudo foi realizado em um pomar comercial de maci
Cienc. Rural. Publicado em: 11/04/2019
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6. ELUCIDAÇÃO DA QUIRALIDADE INDUZIDA NA MOLÉCULA DANSILGLICINA NA COMPLEXAÇÃO COM A PROTEÍNA ALBUMINA DO SORO HUMANO (HSA)
Human serum albumin (HSA) plays an important role in the transport of a wide variety of substances, including compounds with pharmacological properties. The dansylglycine (DanG) is a fluorescent amino acid derivative specific for the site II of HSA. This work aimed to elucidate the induction of chirality in the DanG due to its bonding to the HSA. Theoretical
Quím. Nova. Publicado em: 2019-02
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7. METODOLOGIA PARA DETECÇÃO ELETROQUÍMICA QUALITATIVA DE COMPOSTOS ORGÂNICOS EM INTERFACES PETRÓLEO/ÁGUA
The possibility of detecting some organic compounds directly in a petroleum/water interface was described. Aqueous phase was composed by 1 x 10-3 mol L-1 NaCl solution and the oil phase was carried out using crude oil forming an oil/water interface. Carbon based screen-printed electrodes was used in conjunction with square-wave voltammetry technique, constit
Quím. Nova. Publicado em: 2019-01
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8. Rosmarinic and Cinnamic Acid Derivatives of in vitro Tissue Culture of Plectranthus ornatus: Overproduction and Correlation with Antioxidant Activities
This work describes the tissue culture of Plectranthus ornatus Codd. (Lamiaceae) on Murashige and Skoog (MS) medium with naphthalene acetic acid (NAA) (1.0, 2.0 and 4.0 mg L-1) and 6-benzylaminopurine (BAP) (1.0, 2.0 and 4.0 mg L-1) as growth regulators to obtain the overproduction of rosmarinic acid. The content of rosmarinic acid and its biosynthetic precu
J. Braz. Chem. Soc.. Publicado em: 2017-03
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9. SYNTHESIS OF 2,6-DIMETHYLNAPHTHALENE OVER SAPO-11, SAPO-5 AND MORDENITE MOLECULAR SIEVES
Abstract Shape-selective methylation of naphthalene over SAPO-11, SAPO-5 and mordenite molecular sieves were carried out in a fixed-bed flow reactor under atmospheric pressure. Methanol and mesitylene were used as methylation and solvent agents. The experiment results showed that SAPO-11 exhibited higher stability, higher selectivity of 2,6-dimethylnaphthale
Braz. J. Chem. Eng.. Publicado em: 2017-01
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10. Synthesis, in vitro Antifungal Activity and Molecular Modeling Studies of New Mannich Bases Derived from Lawsone
Hydroxynaphthoquinones such as lawsone (2-hydroxy-1,4-naphthoquinone) have proven to be effective antifungal agents. These compounds were tested for antifungal activity against yeast standard and clinical strains by the broth microdilution method. Among the synthetic lawsone derivatives, 2-hydroxy-3-((2-hydroxyphenyl)(pyrrolidin-1-yl)methyl)naphthalene-1,4-d
J. Braz. Chem. Soc.. Publicado em: 2016-11
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11. Phytochemical and Morphological Evidences for Shikonin Production by Plant Cell Cultures of Onosma sericeum Willd
ABSTRACT Shoot regeneration, callus growth, and biosynthesis of shikonin in callus cultures of Onosma sericeum were examined. Plant tissue culture was used as an alternative method for increasing the production of shikonin, a secondary metabolite. The isolated cultures were subjected to abiotic factors such as light, plant growth regulators, and nutritional
Braz. arch. biol. technol.. Publicado em: 31/10/2016
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12. Degradation of polynuclear aromatic hydrocarbons by two strains of Pseudomonas
ABSTRACT The goal of this investigation was to isolate competent polynuclear aromatic hydrocarbons degraders that can utilize polynuclear aromatic hydrocarbons of former industrial sites at McDoel Switchyard in Bloomington, Indiana. Using conventional enrichment method based on soil slurry, we isolated, screened and purified two bacterial species strains PB1
Braz. J. Microbiol.. Publicado em: 2016-09