ULPGC accedaCRIS Colección: https://accedacris.ulpgc.es/jspui/handle/10553/30012 Tue, 26 May 2026 21:58:48 GMT 2026-05-26T21:58:48Z Fatal diseases of reptiles in two zoological collections in Gran Canaria https://accedacris.ulpgc.es/jspui/handle/10553/166618 Título: Fatal diseases of reptiles in two zoological collections in Gran Canaria Autores/as: Orós Montón, Jorge Ignacio Tue, 01 Jan 2002 00:00:00 GMT https://accedacris.ulpgc.es/jspui/handle/10553/166618 2002-01-01T00:00:00Z Solvent-free enzymatic esterification of pentyl propionate. Comparison of results using two types of reactors: BSTR and PBR https://accedacris.ulpgc.es/jspui/handle/10553/166440 Título: Solvent-free enzymatic esterification of pentyl propionate. Comparison of results using two types of reactors: BSTR and PBR Autores/as: Lorenzo Pérez,Beatriz; González Garcinuño, Álvaro; Martín del Valle, Eva María; Domínguez Déniz, Leandro; Fernández Suárez, Luis Jesús; Ortega Saavedra, Juan Resumen: This paper addresses the solvent-free esterification of pentan-1-ol with propionic acid to produce pentyl propionate, using Lipozyme®435 as catalyst. A batch stirred tank reactor (BSTR) and a packed bed continuous reactor (PBR) are tested and compared in technical and economic terms. The effect of some variables such as temperature, reagents proportion, catalyst load and flow rate is analyzed. High conversions can be achieved in both reactors, evidencing the technical feasibility of the solvent-free reaction in both batch and continuous operation. Enzyme deactivation occurs as a result of the synergic effect of high temperatures (>70 °C) and low alcohol/acid ratio. At equal reaction conditions, enzyme deactivation is much stronger in the batch reactor, indicating a higher enzyme stability in the packed bed reactor. Sun, 01 Jan 2023 00:00:00 GMT https://accedacris.ulpgc.es/jspui/handle/10553/166440 2023-01-01T00:00:00Z Analysing how the properties of tephra from the 2021 Tajogaite eruption affected the environment in La Palma, Canary Islands https://accedacris.ulpgc.es/jspui/handle/10553/165867 Título: Analysing how the properties of tephra from the 2021 Tajogaite eruption affected the environment in La Palma, Canary Islands Autores/as: Perez-Torrado, Francisco-Jose; Fernandez-Turiel, Jose L.; Rodriguez-Gonzalez, Alejandro; Benavente García,David; Cabrera, María del Carmen; Estévez Navarro, Esmeralda; García Martínez,Noé; Lobo, Agustín; Paris, R. Thu, 01 Jan 2026 00:00:00 GMT https://accedacris.ulpgc.es/jspui/handle/10553/165867 2026-01-01T00:00:00Z The southernmost Central Volcanic Zone of the Andes: a natural laboratory for reconstructing the impact of large explosive Holocene eruptions (NEVA2) https://accedacris.ulpgc.es/jspui/handle/10553/165866 Título: The southernmost Central Volcanic Zone of the Andes: a natural laboratory for reconstructing the impact of large explosive Holocene eruptions (NEVA2) Autores/as: Fernandez-Turiel, Jose L.; Rodriguez-Gonzalez, Alejandro; Perez-Torrado, Francisco-Jose; Cabrera, María del Carmen; Ratto ,Norma; Polanco Valenzuela,Edmundo; Benavente García,David; García Martínez,Noé; Estévez Navarro, Esmeralda Thu, 01 Jan 2026 00:00:00 GMT https://accedacris.ulpgc.es/jspui/handle/10553/165866 2026-01-01T00:00:00Z