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Browsing by Author "Palma López, Alberto"
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Assessment of compost maturity by using an electronic nose
López Núñez, Rafael; Giráldez Díaz, Inmaculada
; Palma López, Alberto; Díaz Blanco, Manuel Jesús (Elsevier, 2015)
The composting process produces and emits hundreds of different gases. Volatile organic compounds (VOCs) can provide information about progress of composting process. This paper is focused on the qualitative and quantitative ... -
Comparative study of the combustion, pyrolysis and gasification processes of Leucaena leucocephala: Kinetics and gases obtained
Clemente Castro, Sergio; Palma López, Alberto; Ruiz Montoya, Mercedes; Giráldez Díaz, Inmaculada; Díaz Blanco, Manuel Jesús (Elsevier, 2023-07)
Leucaena leucocephala is a fast-growing leguminous biomass with great energetical and valueadded chemical compounds potential (saccharides, biogas, bio-oil, etc.). Using the thermogravimetric and derivative thermogravimetric ... -
Comparison of the Simple Cyclic Voltammetry (CV) and DPPH Assays for the Determination of Antioxidant Capacity of Active Principles
Fernández Arteaga, Jesús; Ruiz Montoya, Mercedes; Palma López, Alberto; Alonso Garrido, Gema; Pintado, Sara; Rodríguez Mellado, José Miguel (MDPI, 2012)
Antioxidant activity of a number of small (low molecular weight) natural compounds found in spices, condiments or drugs (gallic acid, sesamol, eugenol, thymol, carvacrol, vanillin, salicylaldehyde, limonene, geraniol, ... -
Desarrollo e implementación de métodos electroquímicos para determinar la capacidad antioxidante de muestras orgánicas
Palma López, Alberto (Universidad de Huelva, 2015)
El estrés oxidativo es uno de los procesos bioquímicos estudiados de mayor relevancia en los últimos años que surge como consecuencia de un desequilibrio entre las sustancias antioxldantes y prooxidantes. Este fenómeno ... -
Determination of antioxidant activity of spices and their active principles by Differential Pulse Voltammetry
Palma López, Alberto; Ruiz Montoya, Mercedes; Fernández Arteaga, Jesús; Rodríguez Mellado, José Miguel (American Chemical Society, 2014)
The anodic oxidation of mercury in the presence of hydrogen peroxide in differential pulse voltammetry (DPV) was used to determine the antioxidant (AO) character of radical scavengers. Hydroperoxide radical is formed at ... -
Kinetic of Pyrite thermal degradation 1 under oxidative environment
Vázquez, Marta; Moreno-Ventas Bravo, Ignacio; Raposo, Irene; Palma López, Alberto; Díaz Blanco, Manuel Jesús (Springer Nature, 2019-03-03)
Pyrite is the most common mineral in polymetallic sulphides ores. In order to apply the combustion group theory to the pyrometallurgical processes that occur in the reaction shaft, it is necessary to know the kinetic ... -
Kinetic synergistic effect in co-pyrolysis of Eucalyptus globulus with high and low density polyethylene
Ruiz Montoya, Mercedes; Palma López, Alberto; Lozano Calvo, Susana; Morales Carrillo de Albornoz, Emilio; Díaz Blanco, Manuel Jesús (Elsevier, 2022-08-13)
The pyrolysis of Eucalyptus globulus (EG) with different blends of high density polyethylene (HDPE) and low density polyethylene (LDPE) by thermogravimetry has been studied. ASTM-E1641-16 standard method has been used to ... -
MSW Compost Valorization by Pyrolysis: Influence of Composting Process Parameters
Palma López, Alberto; Doña Grimaldi, Victor; Ruiz Montoya, Mercedes; Giráldez Díaz, Inmaculada (American Chemical Society, 2020-08)
The valorization of urban solid waste compost (MSW) in two different composting conditions (different aeration and humidity) has been studied (we work with the hypothesis that the composting process can have a significant ... -
Pyrolysis kinetic, thermodynamic and product analysis of different leguminous biomasses by Kissinger-Akahira-Sunose and pyrolysis-gas chromatography-mass spectrometry
Clemente Castro, Sergio; Palma López, Alberto; Ruiz Montoya, Mercedes; Giráldez Díaz, Inmaculada; Díaz Blanco, Manuel Jesús (Elsevier, 2022)
To ascertain the potential of various leguminous biomass such as L. leucocephala, C. proliferus, P. alba and S. sesban, both energetic and a source of high added value products, the pyrolytic behaviour was studied at ... -
Tagasaste, leucaena and paulownia: three industrial crops for energy and hemicelluloses production
Palma López, Alberto; Loaiza Rodríguez, Javier Mauricio; Díaz Blanco, Manuel Jesús; García Domínguez, Juan Carlos; Giráldez Díaz, Inmaculada; López Baldovín, Francisco (BMC, 2021-04)
Background: Burning fast-growing trees for energy production can be an effective alternative to coal combustion. Thus, lignocellulosic material, which can be used to obtain chemicals with a high added value, is highly ... -
Thermogravimetry Applicability in Compost and Composting Research: A Review
Díaz Blanco, Manuel Jesús; Ruiz Montoya, Mercedes; Palma López, Alberto; Paz Bañez, María Violante de (MDPI, 2021-02)
Composting could be a suitable solution to the correct treatment and hygienization of several organic waste, producing compost that can be used in agriculture. The evolution and maturity of this process has been studied ... -
Ultrasound extraction optimization for bioactive molecules from Eucalyptus globulus leaves through antioxidant activity
Palma López, Alberto; Díaz Blanco, Manuel Jesús; Ruiz Montoya, Mercedes; Morales Carrillo de Albornoz, Emilio; Giráldez Díaz, Inmaculada (Elsevier, 2021)
Antioxidant products present a very high added value and are demanded in the market. The optimization of their extraction is a high-stakes matter for both economic and environmental points of view. Ultrasound extraction ... -
Valorización de Posos de Café: un Enfoque de Economía Circular
Loaiza Rodríguez, Javier Mauricio; Palma López, Alberto (Universidad de Huelva, 2022)
El alcance de este estudio es demostrar la posible implementación de procesos secuenciales para crear una biorrefinería en cascada eficiente para la valorización de los posos de café con un enfoque de economía circular. ...
