Coating
Mostrando 25-36 de 1209 artigos, teses e dissertações.
-
25. OTIMIZAÇÃO DO PROCESSO NÃO INVASIVO E NÃO DESTRUTIVO DE EXTRAÇÃO E ANÁLISE DE METABÓLITOS VOLÁTEIS DE MAMÃO PAPAIA POR SPME-GC-MS
The analysis of volatiles is an alternative in the routine of quality control of fruits, since the volatile metabolites can change in the presence of microorganisms. A well-established method for extracting volatiles is the solid phase microextraction (SPME). This work aims to define some parameters (fiber coating, conditioning time and fiber exposure time)
Quím. Nova. Publicado em: 2020-09
-
26. Chitosan Nanoparticles Loaded with Carvacrol and Carvacryl Acetate for Improved Anthelmintic Activity
Carvacrol (CV) and carvacryl acetate (CVA) are bioactive compounds that have anthelmintic action and the nanoencapsulation may be an alternative to potentialize their efficacy. The aim of this work was to nanoencapsulate CV and CVA using chitosan/gums and evaluate cytotoxicity and the anthelmintic activity. A 24 factorial experimental design was performed to
J. Braz. Chem. Soc.. Publicado em: 2020-08
-
27. Impact of whey protein isolate coatings containing different antimicrobial agents on sliced bologna-type sausage during refrigerated storage
Abstract In this study, we aimed to determine the possibility of using the edible whey protein isolates coatings containing different antimicrobial agents on the bologna-type sausage slices and the inactivation effects of these coatings against Listeria innocua. For this purpose, edible whey protein isolates (WPI) coatings were prepared to contain essential
Food Sci. Technol. Publicado em: 2020-06
-
28. Efeito da temperatura nas propriedades fotocatalíticas de filmes finos multicamadas de TiO 2 -CeO 2 obtidos por spin coating
Resumo Filmes finos multicamadas de TiO2-CeO2 foram depositados pelo método de spin coating e calcinados a 500 e 700 °C. Os filmes finos foram caracterizados por difração de raios-X (DRX), microscopia eletrônica de varredura por emissão de campo (MEV-FEG), microscopia de força atômica (MFA) e espectroscopia de reflectância difusa. As propriedades fo
Cerâmica. Publicado em: 2020-06
-
29. Agar and pomegranate seed oil used in a biodegradable coating composition for Formosa papaya
Abstract The use of biodegradable coatings to conserve fruits and vegetables stands out in the food industry. This study aims to evaluate the postharvest quality of papaya Formosa 'Tainung 01' submitted to different coating formulations, to establish the one that best maintains the postharvest quality. The fruits, distributed in a completely randomized desig
Food Sci. Technol. Publicado em: 2020-06
-
30. Optimization of extraction conditions of volatile compounds of roasted beef by solid-phase microextraction
Aroma is one of the most important sensory attributes for acceptance by beef consumers. The first step in analysing the volatile compounds associated with this attribute is their extraction from the food matrix, solid-phase microextraction has been widely used for volatile compound determination in meat. This study aimed to test six different solid-phase mic
Quím. Nova. Publicado em: 2020-04
-
31. Chitosan-Sodium Alginate Polyelectrolyte Complex Coating Pluronic® F127 Nanoparticles Loaded with Citronella Essential Oil
Pluronic® F127 nanoparticles were loaded with citronella essential oil (CEO) and then covered with chitosan-sodium alginate polyelectrolyte complex (PEC). The system was characterized according to size, zeta potential and stability over time. Dynamic light scattering (DLS) in different proportions of water/ethanol as a dispersive medium was important in con
J. Braz. Chem. Soc.. Publicado em: 2020-04
-
32. PMMA-SiO2 Organic-Inorganic Hybrid Coating Application to Ti-6Al-4V Alloy Prepared through the Sol-Gel Method
Siloxane-poly(methyl methacrylate) (PMMA) hybrid was synthesized based on the sol-gel method and applied to Ti-6Al-4V through dip-coating. The structural feature of the hybrid was subjected to Fourier-transform infrared spectroscopy (FTIR) and thermogravimetric analysis (TG); its morphological properties were analyzed through scanning electron microscope (SE
J. Braz. Chem. Soc.. Publicado em: 2020-02
-
33. Effect of TiC Particles Concentration on Microstructure and Properties of Ni-TiC Composite Coatings
A kind of novel anti-wear Ni-TiC composite coatings was deposited successfully on 42CrMo steel by pulsed electrodeposition method with various TiC particles concentration. The effect of TiC concentration on morphologies and properties of Ni-TiC composite coatings were investigated and the optimum concentration of TiC particle was obtained. Results demonstrat
Mat. Res.. Publicado em: 20/01/2020
-
34. PREPARATION AND SIMULATION OF THE ON-LINE SiO2/S COATING FOR COKING INHIBITION IN THE INDUSTRIAL CRACKING FURNACE
Abstract Coke formation inside radiant coils is one of the main problems during thermal cracking of hydrocarbons. The on-line preparation of the coating for coking inhibition is a promising technology because it provides more flexibility to the operators on site. The SiO2/S coating was prepared on the inner surface of coils in an 8-year-served GK-VI industri
Braz. J. Chem. Eng.. Publicado em: 13/01/2020
-
35. Relationship Between Glycemic Control and Coated Tongue in Type 2 Diabetes Mellitus Patients with Xerostomia
Abstract Objective: To examine the relationship between the level of glycemic control and coated tongue in type 2 diabetes mellitus patients with xerostomia. Material and Methods: This study was an analytical survey and involved 64 type 2 diabetes mellitus patients, aged between 17 to 65 years old with 34 males and 30 females. Diagnosis of diabetes mellitu
Pesqui. Bras. Odontopediatria Clín. Integr.. Publicado em: 13/01/2020
-
36. Flexible, Large-Area Organic Solar Cells With Improved Performance Through Incorporation of CoFe2O4 Nanoparticles in the Active Layer
Cobalt ferrite (CoFe2O4) nanoparticles (NPs), with an average diameter of about 4-10 nm, were produced by the proteic sol-gel method and successfully doped into the active layer of poly(3-hexylthiophene-2,5-diyl) (P3HT):[6,6]-phenyl-C61-butyric acid methyl ester (PCBM) organic solar cells. Pristine and CoFe2O4 NPs-doped blends of P3HT:PCBM were dispersed in
Mat. Res.. Publicado em: 13/01/2020