Examinando por Materia "RESIDUOS AGRÍCOLAS"

Mostrando 1 - 4 de 4
  • No hay miniatura disponible
    Publicación
    Data-Driven ML for the Prediction of Syngas Composition and End-Use Application from residual biomass gasification
    (Universidad EAFIT, 2025) González Velandia, Laura Catalina; García-Freites, Samira; Sanjuan Mejía, Marco; Acosta Villamil, David; Aristizábal Castrilló, Adriana; Botero Vega, María Luisa; Builes Toro, Santiago; Vega Botero, Maria Luisa; Toro Builes, Santiago; Promigas S.A. E.S.P Transmetano S.A.
  • No hay miniatura disponible
    Publicación
    Evaluación del potencial adsorbente de la semilla de aguacate para la remoción de un colorante
    (Universidad EAFIT, 2023) Salgado Durango, María Fernanda; Ospino Mulett, Gabriela María; Estrada Giraldo, Catalina
  • No hay miniatura disponible
    Publicación
    Herramienta de medición de circularidad aplicada a la agroindustria para fortalecer la gestión sostenible bajo criterios ESG
    (Universidad EAFIT, 2025) Osorio Arboleda, Carlos Andrés; Naranjo Santa, Katerine; Polanco López de Mesa Flórez, Camilo
    Agribusiness faces significant challenges stemming from its economic activity and its use of available resources without measuring their impact, which is generating negative impacts on the environment. These negative impacts are exacerbated in the context of a traditional linear economic model based on extracting, manufacturing, using, and disposing, which is unsustainable in the face of growing global demands and planetary boundaries. Considering this, the circular economy presents itself as a sustainable alternative to the traditional linear economic model. According to the Circularity Gap Report 2024, only 7.2% of the global economy is circular, which demonstrates a stagnation in the transition toward sustainable models. This situation has led to six of the nine planetary boundaries already being surpassed, putting the stability of the Earth's system at risk (Circle Economy & Deloitte, 2024). In our context, in Colombia, as explained in the Circular Economy Business Guide (Colombia Productiva, 2020), agribusiness generates approximately 65% of organic waste, most of which is unused. This figure highlights a significant opportunity to incorporate circular economy strategies in our country that enable efficient use of resources and the closing of production cycles, especially in strategic sectors such as agribusiness, which has high potential for generating environmental, social, and economic value. Now, looking at the global context, agricultural production is responsible for 30% of total energy consumption and 22% of total greenhouse gas emissions (United Nations [UN], 2015). It can be stated that agriculture is one of the human activities with the greatest environmental impact. In conclusion, this study will propose a set of key indicators to measure the level of circularity, in accordance with recognized standards and methodologies. In addition, global risk reports will be consulted to identify emerging trends and risks, which will provide insight into how circularity management could be strengthened in the Colombian agribusiness sector. This understanding will contribute to enhancing the sector's sustainability, increasing its competitiveness, and facilitating more effective management of risks associated with ESG (environmental, social, and governance) pillars.
  • No hay miniatura disponible
    Publicación
    Producción de biopelículas a partir de biomasa residual de café con potencial aplicación en empaques
    (Universidad EAFIT, 2025) Torres Figueroa, Julián; Giraldo Estrada, Catalina
    The coffee industry generates enormous volumes of residual biomass, posing an environmental challenge while also offering an opportunity to obtain biopolymers. This study proposes valorizing coffee pulp by producing pectin-based biofilms with potential packaging applications. Pectin was extracted from the pulp of Coffea arabica (Caturra Chiroso variety) using 0.1 M H₂SO₄, and the effects of temperature (25–100 °C) and time (30–90 min) on extraction yield were evaluated. The optimal conditions—100 °C for 90 min—yielded 6.95 ± 0.78 %. The pectin obtained exhibited a degree of esterification of 59 ± 3.1 % and a methoxylation degree of 5.2 ± 0.4 %. Biofilms were produced by solvent casting, varying pectin concentrations (2–5 %) and sorbitol as a plasticizer (20–40 %), and assessing the resulting mechanical properties. For the best formulation tested (5 % pectin and 40 % sorbitol), a tensile strength of 2.28 ± 0.33 MPa and an elongation at break of 22.75 ± 3.29 % were obtained. The films displayed antioxidant activity (ABTS radical scavenging: 17.7 ± 2.2 %) and water-vapor permeability (5.44 ± 0.27 × 10⁻¹⁰ kg m⁻¹ s⁻¹ Pa⁻¹) comparable to similar biopolymers. Scanning electron microscopy revealed homogeneous, cavity-free structures, indicating component compatibility. These results demonstrate the potential of coffee pulp as a pectin source for biofilm production. Nevertheless, to meet packaging requirements, further research is recommended to enhance mechanical and functional properties through the incorporation of nanomaterials or a combination with other biopolymers, which could enable the development of a bioplastic with competitive performance and facilitate its substitution in the context of conventional plastics.