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https://hdl.handle.net/20.500.12104/79855Registro completo de metadatos
| Campo DC | Valor | Lengua/Idioma |
|---|---|---|
| dc.contributor.advisor | Cruz Barba, Luis Emilio | - |
| dc.contributor.advisor | Sánchez Castillo, Marco Antonio | - |
| dc.contributor.author | Navarro Flores, Marco Antonio | - |
| dc.date.accessioned | 2019-11-29T18:40:22Z | - |
| dc.date.available | 2019-11-29T18:40:22Z | - |
| dc.date.issued | 2015 | - |
| dc.identifier.uri | https://wdg.biblio.udg.mx | - |
| dc.identifier.uri | https://hdl.handle.net/20.500.12104/79855 | - |
| dc.description.abstract | Food spoilage not only results in huge economic loss for the food industry, but food safety is a major priority in today' s globalizing market with worldwide transportation and consumption of raw, fresh and minimally processed foods[l]. The food industry is not the only industry concerned with biofilm formation. In the medical industry, biofilm-associated bacteria on implants or catheters are of great concern beca use they can cause very serious infections[2]. Since there is an economic loss, which is usually the main focus in any industry, as well as health problems, there needs to be a way to remedy this problem. One way to minimize, and hopefully eliminate, this problem is to modify the surface in which these products are sealed and make it antibacterial. | - |
| dc.description.tableofcontents | Table of Contents List of Figures ................................................................................................................................ iii List of Equations ............................................................................................................................ iv List of Tables .................................................................................................................................. v 1. Introduction ................................................................................................................................. 1 1.1 Background ................................................................................................................................. 1 1.2 Justification ................................................................................................................................. 3 1.3 Hypothesis .................................................................................................................................. 3 1.4 Objectives ................................................................................................................................... 3 1.4.1 Films Characterization ............................................................................................................. 3 1.4.2 Evaluation of Bacteria! Activity ................................................................................................. 3 1.4.3 Evaluation of lnfluence of Reaction Parameters ....................................................................... 4 2. Literature Review ........................................................................................................................ 5 2.1 Essential Oils ............................................................................................................................... 5 2.1.1 Limonene ................................................................................................................................. 6 2.1.2 Menthol ................................................................................................................................... 7 2.2 Polyethylene ............................................................................................................................... 8 2.3 Plasma ......................................................................................................................................... 9 2.3.1 Basic Concepts ......................................................................................................................... 9 2.3.2 Plasma lnduced Polymerization ............................................................................................. 12 2.3.3Applications of Plasma ........................................................................................................... 14 2.4 Plasma Technology .................................................................................................................... 15 2.4.1 Plasma Reactors .................................................................................................................... 15 2.4.2 Radio Frequency Discharge .................................................................................................... 15 2.4.3 Plasma Surface Modification .................................................................................................. 16 2.4.4Chemical Reactions in Cold Plasmas ....................................................................................... 16 2.5 Microbiology ............................................................................................................................. 20 2.5.lEscherichia co/i ...................................................................................................................... 21 3. Characterization of Plasma Modified Surfaces ......................................................................... 22 3.1 Attenuated Total Reflectan ce Fourier Transformation lnfrared Spectroscopy (ATR-FTIR) ........... 22 3.2 Antibacterial Analysis - PI ate Count Test ................................................................................... 23 4. Materials and Methods ......... ...... .................. ...... .................. ... .................. ...... .................. ........ 25 4.1 Materials ................................................................................................................................... 25 4.2 Substrate Preparation ............................................................................................................... 25 4.3 Plasma Pretreatment ................................................................................................................. 25 4.4 Plasma Treatment ..................................................................................................................... 26 4.5 Characterization ........................................................................................................................ 30 4.5.lAttenuated Total Reflectance Fourier Transformation lnfrared Spectroscopy (ATR-FTIR) ....... 30 4.5.2 Plate Count Analysis .............................................................................................................. 30 5. Results and Discussion .............................................................................................................. 31 5.1 Polyethylene Attenuated Total Reflectance FourierTransformation lnfrared Spectroscopy (ATR-FTIR) 31 5.2 (R)- (+)-Limonene ...................................................................................................................... 33 5.2.1 Detection of Film Formation via Attenuated Total Reflectance Fourier Transformation lnfrared Spectroscopy (ATR-FTI R) ........................................................................................................ 33 5.2.2Antibacterial Efficiency Using PI ate Count Test ...................................................................... 38 5.3 L-Menthol Analysis .................................................................................................................... 44 5.3.1 Detection of Film Formation via Attenuated Total Reflectance Fourier Transformation lnfrared Spectroscopy (ATR-FTI R) ........................................................................................................ 44 5.3.2Antibacterial Efficiency Using PI ate Count Test ...................................................................... 49 5.4 Optimal Parameters .................................................................................................................. 56 6. Conclusion ................................................................................................................................ 57 7. Bibliography .............................................................................................................................. 59 | - |
| dc.format | application/PDF | - |
| dc.language.iso | spa | - |
| dc.publisher | Biblioteca Digital wdg.biblio | - |
| dc.publisher | Universidad de Guadalajara | - |
| dc.rights.uri | https://wdg.biblio.udg.mx/politicasdepublicacion.php | - |
| dc.title | FORMACIÓN DE PELÍCULAS DE LIMONENO Y MENTOL EN SUPERFICIES DE POLIETILENO MEDIANTE EL USO DE PLASMA FRÍO DE RADIO FRECUENCIA | - |
| dc.type | Tesis de Maestria | - |
| dc.rights.holder | Universidad de Guadalajara | - |
| dc.rights.holder | Navarro Flores, Marco Antonio | - |
| dc.type.conacyt | masterThesis | - |
| dc.degree.name | MAESTRIA EN CIENCIAS EN INGENIERÍA QUÍMICA | - |
| dc.degree.department | CUCEI | - |
| dc.degree.grantor | Universidad de Guadalajara | - |
| dc.degree.creator | MAESTRO EN CIENCIAS EN INGENIERÍA QUÍMICA | - |
| Aparece en las colecciones: | CUCEI | |
Ficheros en este ítem:
| Fichero | Tamaño | Formato | |
|---|---|---|---|
| MCUCEI01085FT.pdf | 1.22 MB | Adobe PDF | Visualizar/Abrir |
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