Buscar por Director Maldonado Rodríguez, María Elena
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Aislamiento de microorganismos capaces de producir antibióticos, a partir de suelos de las regiones naturales de Ecuador
Egas Rosero, Carla Isabel; Tinajero Carrera, Michelle Elizabeth (mar-2016) - [Director: Maldonado Rodríguez, María Elena]
Acquired resistance by microorganisms is due to the indiscriminate use of antimicrobials
and to the ability to originate mechanisms to adapt to different environments. This
problem increases in passing years and research of new antibiotics from natural sources
being required, their production...
Aislamiento de microrganismos con la capacidad de biotransformar los ácidos biliares hyodesoxicólico y desoxicólico
Araujo Guayasamín, Misheel Enith; Ruiz Moreno, Andrea Alejandra (abr-2014) - [Director: Maldonado Rodríguez, María Elena]
This research will seek to find microorganisms capable of biotransform steroid structures for acids and deoxycholic hyodeoxycholic are products Ursodeoxycholic acid synthesis. One major problem presented by the synthesis of ursodeoxycholic acid are industrially pollutants generated, so as to...
Aislamiento de taxones de hongos filamentosos capaces de producir amilasas a partir de tubérculos de uso tradicional en la región andina
Molina Tufiño, Josueth Rafael; Sanmartín Ambuludí, Daniel Migoban (mar-2016) - [Director: Maldonado Rodríguez, María Elena]
The industry of processing roots and tubers generated large amounts of starch
annually, which disposal is inappropriate. Starch biotansformation into simple
carbohydrates is one alternative that added value to a substance listed in first instance
as waste. The research objective was to...
Análisis de la capacidad de biodegradación de glifosato a partir de microorganismos aislados del suelo
Montaluisa Álvarez, María Belén; Rojas Chávez, Esteban Andrés (jul-2019) - [Director: Maldonado Rodríguez, María Elena]
En la presente investigación se analizó la capacidad de biodegradación de glifosato a partir de microorganismos aislados de suelo contaminado con el herbicida. Para ello, se aislaron y caracterizaron, tanto macro- como microscópicamente, diez cepas bacterianas degradadoras de glifosato,...
Análisis químico del antibiótico producido por Bacillus megaterium aislado de muestras de suelo, mediante cromatografía y técnicas espectroscópicas.
Guzmán Flor, Diego Alexander (nov-2018) - [Director: Maldonado Rodríguez, María Elena]
Bacterial resistance is one of the main issues regarding public health worldwide, since most of the existing antibiotics are no longer effective against bacterial diseases. To that end, many microorganisms from different environments have been isolated and subjected under stress conditions to...
Análisis químico mediante técnicas cromatográficas y espectroscópicas de los antibióticos producidos por las bacterias Micrococcus luteus Y Streptococcus sp., aisladas del suelo
Arévalo Puetate, Carmen Gabriela; Cruz Moreno, Raí Sebastian (jul-2020) - [Director: Maldonado Rodríguez, María Elena]
La presente investigación se basa en la extracción, caracterización y análisis de los antibióticos
producidos por Micrococcus luteus y Streptococcus sp. codificadas como PAP49G3A y PAP48
respectivamente, mediante técnicas como: Espectrofotometría Infrarroja (IR) donde se visualizó
grupos...
Análisis químico mediante técnicas cromatográficas y espectroscópicas del antibiótico producido por los géneros Stenotrophomonas Y Burkholderia aislados de muestras de suelo
Lozada Tonato, Henry Omar (feb-2018) - [Director: Maldonado Rodríguez, María Elena]
The discovery of new drugs and active chemical structures against pathogenic bacteria has been achieved from the study of the secondary metabolism of microorganisms produced in controlled conditions, incubating in a liquid culture medium in these conditions bacterial strains capable of inhibiting...
Caracterización de microorganismos con actividad antimicrobiana provenientes de suelos de los cantones Quito y Rumiñahui
Bastidas Cevallos, Yomaira Elizabeth; Vaca Viracucha, Josselyn Karina (sep-2018) - [Director: Maldonado Rodríguez, María Elena]
Currently, antibiotic resistance worldwide is a serious problem that worsens every day, which is why the pharmaceutical, biotechnology and health industries are destined to provide solutions to this problem, for which they have joined forces to create new antibiotics obtained from natural...
Elaboración de una crema nutritiva facial a base de la pulpa de Chirimoya (Annona cherimola, Annonaceae) -- Universidad Politécnica Salesiana, Unidad de Postgrado ; abril 2015
Cobos Yanez, Diana Beatriz (abr-2015) - [Director: Maldonado Rodríguez, María Elena]
The present study has for aim evaluate the cosmetic efficiency of a cream elaborated based on flesh of cherimoya (Annonna cherimola) since it agrees with the reports in the bibliography offers an excellent alternative to be used in the cosmetic industry for possessing big quantities of present...
Estudio comparativo de la eficiencia antibacteriana de una mezcla de parabenos frente al aceite de romero (Rosmarinus officinalis Lamiaceae) utilizados como conservantes en una formulación cosmética.
Mosquera Tayupanta, Tatiana de los Ángeles (mar-2014) - [Director: Maldonado Rodríguez, María Elena]
Cosmetic represent a developing market. Whereas all need cosmetic preservatives, ingredients capable of controlling the microbial load to acceptable levels during the period of use of the product and within lifetime. The investigation of ingredients that can fulfill this role is interesting, much...
Estudio de las propiedades físicas, químicas y antimicrobianas de cinco mieles de abeja (Apis mellifera L.) comercializadas en la provincia de Pichincha
Argüello Bravo, Augusta Natali; Banda Córdova, Vanesa Alexandra (dic-2016) - [Director: Maldonado Rodríguez, María Elena]
Bee honey is a product used by man for many years as a source of food for its nutritional
or medicinal purposes, for treatments of some diseases because it has beneficial
properties as anti-inflammatory and healing; The objective of our investigation is to
determine the physical, chemical and...
Estudio de las propiedades físico-químicas y biológicas en cinco mieles de abeja (Apis mellifera. L.) distribuidas en la red de supermercados del Distrito Metropolitano de Quito
Álvarez Mesías, Johanna Patricia; Sánchez Casamen, Estefanía Raquel (dic-2016) - [Director: Maldonado Rodríguez, María Elena]
This research work shows the studies physicochemical and biological properties of
five samples of honey bee (Apis mellifera. L.) they are regularly sold in the Quito´s
supermarkets in order to show its wide applications in both industry food in the field
of medicine, as well as compliance...
Evaluación de la capacidad de biotransformación de la sal sódica del ácido desoxicólico por actinomicetos.
Beltrán Ortiz, Jessica Alexandra (mar-2015) - [Director: Maldonado Rodríguez, María Elena]
Actinomycetes are ubiquitous microorganisms in the soil, stagnant water, contaminated environments, etc. They are considered in the borderline between bacteria and fungi by their morphological and reproductive characteristics very similar to both groups of microorganisms. They are usually...
Evaluación de la capacidad de biotransformación de la sal sódica del ácido hyodesoxicólico por parte de actinomycetos aislados de muestras de suelos de las provincias de Pichincha y Morona Santiago.
Espinel Alvarez, Sebastián Francisco (mar-2016) - [Director: Maldonado Rodríguez, María Elena]
Actinomycetes are the second most abundant group of microorganisms found in: soil,
stagnant water, contaminated environments, etc. They are considered within the boundary
between bacteria and fungus, they have characteristics, morphological and reproductive
very similar to the two groups of...
Evaluación de la capacidad de biotransformación de las sales de ácidos biliares: colato y dehidrocolato de sodio, por microorganismos aislados en dos camales de la sierra ecuatoriana
Daza Vélez, Andrés Fernando; Pineda Chávez, Juan Carlos (abr-2014) - [Director: Maldonado Rodríguez, María Elena]
This research intends to find microorganisms capable of biotransform the bile acids salts: cholate and sodium dehydrocholate, which are residues generated during the chemical synthesis out of the ursodeoxycholic acid.
Against this, this investigation was able to evaluate the capacity of using...
Evaluación de la capacidad de biotransformar la sal sódica del ácido cólico por actinomicetos.
Calvachi Echeverría, Michelle Nathaly (abr-2016) - [Director: Maldonado Rodríguez, María Elena]
Actinomycetes are microorganisms that they found in the limit between fungi and bacteria, they being generally Gram positive and Gram negative. They are usually distributed in nature, especially in soil, and water.
The research found actinomycetes able to biotransform the sodium salt of cholic...
Evaluación de la concentración de cafeína en cápsulas preparadas a partir de extracto fluido de Ilex guayusa mediante espectrofotometría UV
Basantes Carrillo, Christopher Ricardo (oct-2020) - [Director: Maldonado Rodríguez, María Elena]
La planta Ilex guayusa crece en la Amazonía y es utilizada por los nativos a la cual se le atribuye varios beneficios, uno de los principales es su propiedad estimulante y energética, esto se debe a que uno de los principales componentes de la guayusa es un alcaloide de nombre cafeína, que es parte...
Evaluación de la eficacia antimicrobiana in vitro de cápsulas de extracto fluido de Vaccinium floribundum kunth (Mortiños); en infecciones agudas del tracto urinario.
Musuña Rojas, Gilson Alexis; Varela Villarroel, Sebastián Daniel (feb-2020) - [Director: Maldonado Rodríguez, María Elena]
Las infecciones del tracto urinario (ITU) son frecuentes en hombres y mujeres de todo el mundo, en el Ecuador, 4 de cada 10 habitantes las presentan con mayor incidencia en mujeres, las principales bacterias uropatógenas son Escherichia coli y Staphylococcus saprophyticus. Vaccinium floribundum...
Evaluación de la eficacia del aceite esencial de Curcuma longa L. como conservante en una formulación cosmética orgánica
Vega Picón, María Agusta (feb-2015) - [Director: Maldonado Rodríguez, María Elena]
The current trend in cosmetics is to offer natural and organic cosmetics that are friendly to the environment. The cosmetics industry should respond to this demand by developing raw materials to be accordance with this new preference, within these, the remarkable use of preservatives, whose main...
Identificación de microorganismos de suelos de la provincia de Pichincha, con capacidad de producir antibióticos de amplio espectro.
Núñez Reinoso, José Alejandro; Sierra Arias, César David (feb-2018) - [Director: Maldonado Rodríguez, María Elena]
The microorganisms have acquired resistance to various antibiotic substances due to their ability to generate different adaptation mechanisms in stress conditions due to the misuse of antimicrobial substances. Resistance to these substances has increased throughout the world, causing very high...