Ciencia e Ingeniería en Alimentos y Biotecnología

URI permanente para esta comunidadhttp://repositorio.uta.edu.ec/handle/123456789/412

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2016 - 201912020 - 20221

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  • Miniatura
    Item type:Ítem,
    Extracción de gingerol con CO2 supercrítico a partir del jengibre (Zingiber Officinale) y su microencapsulación por el método de secado por aspersión
    (Universidad Técnica de Ambato. Facultad de Ciencia e Ingeniería en Alimentos y Biotecnología. Carrera de Biotecnología, 2022-03)
    Sotomayor Sarabia, Yonayker Gamaliel
    ;
    López Hernández, Orestes Darío
    The ginger plant species, Zingiber officinale, has metabolites with beneficial industrial purposes implemented since ancient times such as gingerols, in greater quantity 6-gingerol, with antiviral, antibacterial, antifungal, antitumor, antidiabetic, antiangiogenic and anticancer capacity. Extraction with supercritical carbon dioxide favors the integrity of the thermal-unstable and oxidizable active components with the environment due to the low temperatures of the solvents. Spray-drying microencapsulation has emerged as a technique to protect metabolites from environmental damage by means of polymeric coating. This study was based on collecting information on the extraction of gingerol with supercritical carbon dioxide from ginger and its microencapsulation by the spray-drying method, as well as suggesting automated parameters based on metabolite yield. The qualitative research was carried out with a theoretical design based on indexed databases, thus the information was organized and compared with studies from the last decade. According to the literature, the optimal conditions for metabolite extraction were at 40 degrees Celsius, 20 Megapascals, 20 grams per minute with uncertainty values of 5 and 10, respectively, with variable time. The optimal polymer mixture was maltodextrin with gum arabic due to its emulsifying capacity and stability; showed better efficiencies (93 and 94 percent) with a ratio of 5:5 and 1:1. Negligible parameters for microencapsulation were 160 and 120 degrees Celsius at the inlet and outlet; with flow rate between 35 and 100 liters per hour.
  • Miniatura
    Item type:Ítem,
    Inventario de emisiones atmosféricas, de fuentes fijas y móviles basados en datos existentes, de la ciudad de Ambato, año 2015.
    (Universidad Técnica de Ambato. Facultad de Ciencia e Ingeniería en Alimentos. Carrera de Ingeniería Bioquímica, 2016-10)
    Lozada Proaño, Andrés Darío
    ;
    Sánchez Almeida, Miguel Andrés
    The purpose of this research was to estimate the level of atmospheric pollution caused by urban transport and cauldrons to diesel in the city of Ambato. For evaluate them emissions in sources fixed and mobile, is used them methodologies of the Panel Intergovernmental on change climate (IPCC) and of the Agency of protection of the environment of United States (USEPA), since the structure and functionality of these processes are designed to determine the amount of NOX, other, PM10, PM2.5, CO, SO2, CO2, CH4 and N2O. After get the data is carried out the analysis descriptive in EXCEL and the analysis inferential in INFOSTAT. There are 5 operators of mass transport a total of 399 units in the mobile sources, which emitted 29533,39 tons per year of CO2 and fixed sources worked with a total of 23 companies, which emit 5290,972 tonnes per year of carbon dioxide (CO2), this being the most representative in both cases contaminant. Finally, obtained updated information about atmospheric emissions generated in the city and thus find solutions for the management of air pollution.