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Publicación Embargo Actividades fermentativas de interés en el proceso de obtención de bioetanol y crecimiento de biomasa en el kéfir (Gránulos de tíbicos)(2020-06-28) Tamayo Salazar, María CamilaPara realizar esta monografía, se partió de la idea de reconocer qué tipos de fermentaciones proceden a realizar el consorcio microbiano presente en los gránulos de tíbicos, para llevar a cabo un proceso de obtención de bioetanol, al igual que se tendría en cuenta la actividad que tienen estos microrganismos del kéfir para hacer crecer los gránulos de tíbicos aumentando la cantidad de biomasa. Revisando estudios hechos en años recientes, acerca de las actividades que se realizan con esta agrupación de bacterias y levaduras presentes en los tíbicos, se ha demostrado, que crecen en gran cantidad cuando se alimentan de sustratos azucarados, haciendo énfasis en los posibles productos que de él se pueden obtener, no dejando a un lado usos y métodos que abarcan un desarrollo para mejoría de la salud. El interés de este trabajo se basa en la búsqueda de los beneficios que puede producir para llevar a cabo un proceso fermentativo adecuado y también indagar acerca de que promueve su reproducción en cuanto biomasa, con los parámetros que deberían tenerse en cuenta como ºBrix y pH, determinando así condiciones estables y precisas en el proceso bioquímico del kéfir.Publicación Acceso abierto Conducta de huida de la lagartija anolis tropidogaster (Reptilia: Squamata), en un fragmento de bosque seco tropical del Caribe colombiano(2023-07-12) Garces Pérez, Meyerly; Ortega León, ÁngelaLa depredación es una interacción biológica con alto impacto en las poblaciones presas. La necesidad de evitar ser depredado mientras se atiende a otras actividades es una de las presiones selectivas más fuertes que ha llevado al desarrollo de conductas antidepredatorias, como lo es huir. Por otra parte, la altura, el diámetro, y la estructura vegetal de la percha son características importantes en la conducta escape de Anolis, pues esta influye en sus respuestas. por esto se plantea como objetivo de este proyecto, determinar la variación en la conducta de huida según el estrato y la percha ocupados por Anolis tropidogaster, en un fragmento de bosque seco tropical del caribe colombiano. Para esto se usó el método de búsqueda libre, se midió las variables de conducta a cada individuo encontrado, además se tomaron datos de las características de la percha, sexo del individuo y temperatura del individuo, sustrato y aire. Los resultados muestran que las distancias de escape entre sexos no varían mucho, el estrato donde se encuentran los individuos, si influye en la distancia de huida, y ciertas características de la percha hacen que varíen las distancias de escape.Publicación Acceso abierto Creación de una Empresa productora y comercializadora de sustrato de Jardinería a partir de la fibra de Coco en la Ciudad de Montería, 2020(2020-12-11) González, Ángela; Bustamante, Patricia; Vanegas Buelvas, NéstorEn el presente proyecto se dan a conocer las condiciones de mercado, técnico, administrativas y financieras para la creación de una Empresa dedicada a la producción y comercialización de sustrato de jardinería a partir de la fibra de coco en la ciudad de MonteríaPublicación Acceso abierto Diseño e implementación de un sistema para depósito de películas delgadas por el método de spin coating(Universidad de Córdoba, 2024-02-01) Urango Alarcón, Alfredo Luis; Oviedo Cuéter, Juan Manuel; Sánchez Pacheco, Luis Carlos; Peniche Blanquicett, Frankiln EdwinEn el presente trabajo se diseñó e implementó un equipo de bajo coste para el depósito de películas delgadas utilizando el método spin coating. El dispositivo fue construido a partir de un motor brushless y un controlador electrónico de velocidad ESC de 30 A. Como sistema de procesamiento de datos se utilizó una placa de desarrollo Arduino Uno, la cual se eligió por su bajo coste, características técnicas, facilidad de uso y programación, fácil acceso a librerías, entre otros. El prototipo construido muestra en tiempo real la velocidad de giro (RPM) a la que opera. La etapa de visualización de datos del dispositivo fue realizada a partir de una pantalla LCD 16*2. El sistema construido opera de modo manual y puede ser usado para el recubrimiento de películas delgadas de interés.Publicación Acceso abierto Diversidad de macrohongos xilófagos (basidiomicetos y ascomicetos) en la estación ecológicas las guartinajas, Tierralta-Córdoba(Estación Ecológica Las Guartinajas, 2022-11-17) Pérez Espitia, Karen Dallana; Pacheco Martinez, Luz Elena; Montes, Gabriel; Hoyos, Alejandro; Mogollón, MarthaFungi are fundamental in ecosystems due to their degrading or disintegrating activity of organic substances, mineralizing them. In addition, they have a great capacity for adaptation and can develop on any medium or surface, both in forests and in cities. (Viña, 2014). Despite being a very diverse group, there is currently a huge information gap, especially in humid forests. Therefore, a study was carried out in order to evaluate the diversity of the fruiting bodies of xylophagous Macrofungi (Basidiomycota and Ascomycota) at the Las Guartinajas Ecological Station, Tierralta, Córdoba. For this study, two field trips were carried out, in which five tours were carried out for each trip, with a sampling effort of three hours, in addition, transepts 50 meters long by 2 meters wide were established; the specimens were collected and fixed with varnish to be transferred to the microbiology laboratory of the University of Córdoba, for their respective description and identification. The results show a total of 1452 individuals, of which 142 were collected and 130 identified, of these 119 Basidiomycota and 11 Ascomycota, distributed in 11 orders, 29 families, 42 genera and 130 morphospecies; The most abundant morphospecies are Earliela scabrosa, Auricularia auricula and Schizophyllum commune and the less abundant Daldinia concentrica, Marasmius elegans, Polyporus varius, lentinus flexipes and favolus brasiliensis, representing a single individual. the diversity indices showed a high diversity for Shannon with a value of H: 4.092 and a low dominance for Simpson, with a value of D: 0.9759.Publicación Acceso abierto Diversidad taxonómica y funcional de briófitos en diferentes coberturas de un bosque seco tropical, Córdoba-Colombia(Universidad de Córdoba, 2020-11-13) Peñate Pacheco, Liliana; Carrillo Fajardo, Merly Yenedith; Gil Novoa, Jorge EnriqueThe alterations in the forest structure cause changes in the microclimatic conditions that affect the taxonomic and functional diversity of sensitive organisms such as bryophytes; Consequently, they can influence the ecological processes that these organisms carry out and their responses to new environments. Objective. Characterize the brioflora in different covers (silvopastoral system (SSP) gallery forest (BG) and high secondary vegetation (VSA)) of a Tropical Dry Forest and the functional groups associated with water regulation. Materials and methods. Three 100 x 10 m transects and free runs were made in each coverage, with humidity, solar radiation and type of substrate recorded. Functional traits associated with water regulation were measured, such as stem width, length and width of the filidia, presence of leaves with amplecting bases, hyalodermis and imbricated filidia. Results. 19 species are recorded, 15 in VSA and 14 in both BG and SSP. The richest families are Fissidentaceae and Lejeuneaceae. The richest substrates are epiphyto-corticola and decomposing organic matter. Six functional groups were identified, which are present in all habitats, with the exception of functional group three (GF3) that was not recorded in BG. Conclusions. The availability of substrates for the bryophytes in the different coverages shows similarity, except for the absence of the epilitic in BG, which contrasts with the prediction, that in coverages with high luminosity and low humidity (SSP), the availability of microhabitats (substrates) it would be lower and therefore its diversity, which was not the case either because the diversity does not present significant variation in the coverage (p = 1), on the other hand, the richness of functional groups associated with water regulation varies between the coverage. In SSP, the richness is lower with respect to VSA and higher than BG, therefore, the results do not clearly show that the coverage with greater solar radiation and less humidity present less richness, but if less frequency and variation in composition, mainly compared to BG.Publicación Embargo Evaluación de la efectividad de dos tratamientos para el manejo de Rhizoctonia spp y Cylindrocladium spp, en sustrato para la producción de eucalipto (Eucalyptus urograndis)(Reforestadora del Sinú, 2022-02-25) Ruiz Díaz, Mariana; Campo Arana, Rodrigo OrlandoEucalyptus is a plant that is found all over the world, due to its rapid growth, this is a kind of industrial use for the production of paper, wood, obtaining chemicals and as an ornament. In nursery eucalyptus (Eucalyptus urograndis) production, the death of seedlings associated with the pathogens Rhizoctonia spp. and Cylindrocladium spp. causing losses by causing seedling death. The objective of this research was to evaluate the effectiveness of two treatments to the production substrate of eucalyptus (Eucalyptus urograndis) for the management of Rhizoctonia sp. and Cylindrocladium sp., for 55 days in the months of November and December 2019 in the La Ribera nursery located in Jaraquiel (Montería-Córdoba). Two treatments were evaluated (Solarization and solarization plus Dazomet). Before being treated, the substrates were inoculated with wood segments previously colonized with Rhizoctonia and Cylindrocladium, which were buried in the substrate at 3 different depths (5, 10 and 15 cm). At 15, 30 and 55 days after starting the experiment, samples were taken from both the substrate and the timbers colonized with Rhizoctonia and Cylindrocladium and the effect of the treatments with the presence or absence of the phytopathogens that affect eucalyptus was determined. The incidence of pathogens was evaluated with dichotomous variables, values 0 = absence and 1 = presence. A non-parametric statistic was performed where ranges were assigned to the values which were analyzed under a CA design in a 2x3x3 factorial arrangement; 2 = isolated; 3 depths and 3 treatments, with 5 repetitions, the results showed total control for Cylindrocladium spp. and Rhizoctonia spp. in the solarization treatment plus Dazomet, both in the substrate and in the timbers colonized with these fungi. In the free exposure and solarization treatments, there was no control of the phytopathogens inoculated on the 17 substrates. It is concluded that for treatment of the substrate thePublicación Acceso abierto Patrones de distribución de la riqueza de algas RHODOPHYTA Y OCHROPHYTA en isla Tortuguilla, municipio de Puerto Escondido(2021-01-24) Durango Alvarino, Andrea Carolina; Santos Cordero, Tatiana; Mogollón Arismendy, Martha Judith; Arango Rivas, CarolinaThe richness and distribution patterns of the macroalgae, Rhodophyta and Ochrophyta in the south central zone of Tortuguilla Island were evaluated, covering three samplings in two hydrological periods, through a transect parallel to the coastline of 100m long and 2m wide. The samples collected in the field were washed, and continued with preservation in liquid and preservation in dry. They were fixed and preserved on permanent plates in 4% glycerinated gelatin solution and conservation of the specimens in dry condition, followed by a photographic record of each alga collected in macroscopic and microscopic view for its morphological and structural description. A total of 19 species were recorded, of which 12 belong to the Rhodophyta division and seven to the Ochrophyta division, grouped into seven families and 15 genera. The greatest richness of macroalgae was recorded during the dry season, with a total of 17 species, of which 11 were Rhodophyta and six were Ochrophyta, while fewer species were recorded in the rainy period, with three Rhodophyta. And seven Ochrophyta. It was found that the distribution patterns of the matroalgae were directly related to the type of substrate, hydrological periods and morphological adaptations, where, it was evidenced that in general there is a greater preference for hard rock substrates by the Rhodophyta and soft sandy divisions. By the Ochrophyta division. The homogeneity of the physical and chemical variations such as temperature, salinity and pH is highlighted, which had no impact on the development of macroalgae.