53 documents found, page 1 of 6
An expedite methodology for identification of inorganic contaminants in biomass...
Crujeira, Teresa; Trancoso, Maria Ascensão; Oliveira, Ana CristinaABSTRACT: The use of biomass feedstock for bioenergy production has increased in recent years. In the context of a circular economy, wastes such as municipal solid wastes and industrial wastes (namely by-products from agrofood wastes, agro-livestock wastes and sewage sludge) have been tested as new feedstocks of biomass origin. However, the presence of some inorganic contaminants in these new feedstocks might b...
MindRegulation: randomized controlled trial of the effects of a relaxation and ...
Galinha, Iolanda Costa; Carvalho, Joana Sampaio; Oliveira, Ana Cristina; Arriaga, Patrícia; Gaspar, Augusta D.; Ortega, VitóriaBackground: Mental imagery has long been used in psychological therapies, but only recently did research begin to provide a scientific background for it.Imagery interventions are inexpensive anda substantial body of research supports their effectiveness on behavior change, promotion of adaptive health outcomes, anxiety reduction, and adherence to medical interventions, in both adults and children. However, lite...
Admissibility Grid to Support the Decision for the Preferential Routing of Port...
Crujeira, Teresa; Trancoso, Maria Ascensão; Eusebio, Ana; Oliveira, Ana Cristina; Passarinho, Paula; Abreu, Mariana; Marques, Isabel PaulaABSTRACT: A methodology was developed to assess the allocation of different types of endogenous waste biomass to eight technologies for producing electricity, heat, biogas and advanced biofuels. It was based on the identification of key physicochemical parameters for each conversion process and the definition of limit values for each parameter, applied to two different matrices of waste biomass. This enabled th...
The Role of Mild Alkaline Pretreatment in the Biorefinery Upgrade of Spent Coff...
Ribeiro, Gabriel Mota; Martins, Pedro L.; Oliveira, Ana Cristina; Carvalheiro, Florbela; Fragoso, Rita; Duarte, Luís C.ABSTRACT: This work proposes a valorization route for spent coffee grounds (SCG), a widespread lignocellulosic residue, encompassing the production of: biomethane, lignin, and oligosaccharides as value-added products obtained simultaneously during a mild alkaline (NaOH) pretreatment. The studied operational variables were the reaction time (60-240 min), temperature (25-75 degrees C), and the NaOH concentration ...
Admissibility Grid to Support the Decision for the Preferential Routing of Port...
Crujeira, Teresa; Trancoso, Maria Ascensão; Eusebio, Ana; Oliveira, Ana Cristina; Passarinho, Paula; Abreu, Mariana; Marques, Isabel PaulaABSTRACT: A methodology was developed to assess the allocation of different types of endogenous waste biomass to eight technologies for producing electricity, heat, biogas and advanced biofuels. It was based on the identification of key physicochemical parameters for each conversion process and the definition of limit values for each parameter, applied to two different matrices of waste biomass. This enabled th...
Violence against Women during the COVID-19 Pandemic: From Children to the Elderly
Soeiro, Cristina; Ribeiro, Rita; Almeida, Iris; Saavedra, Rosa; Caridade, S.; Oliveira, Ana Cristina; Santos, ManuelaWomen of all ages can be exposed to violence both within and outside of the home, especially in the context of the COVID-19 pandemic. The purpose of this study is to analyze violence against women (VAW) before and during the first year of the pandemic in Portugal. Crimes perpetrated against female victims from 17 years old and younger to 65 years old and older were analyzed by comparing requests for help in 201...
The role of mild alkaline pretreatment in the biorefinery upgrade of spent Coff...
Ribeiro, Gabriel Mota; Martins, Pedro L.; Oliveira, Ana Cristina; Carvalheiro, Florbela; Fragoso, Rita; Duarte, Luís C.This work proposes a valorization route for spent coffee grounds (SCG), a widespread lignocellulosic residue, encompassing the production of: biomethane, lignin, and oligosaccharides as value-added products obtained simultaneously during a mild alkaline (NaOH) pretreatment. The studied operational variables were the reaction time (60–240 min), temperature (25–75 C), and the NaOH concentration (0–2.5 M). The sev...
Development of an innovative macroalgae biorefinery: Oligosaccharides as pivota...
Andrade, Cristiana; Martins, Pedro L.; Duarte, Luís C.; Oliveira, Ana Cristina; Carvalheiro, FlorbelaABSTRACT: Macroalgae have significant advantages over land-living biomass resources and are promising pivotal feedstocks for the onset of the blue bioeconomy. Among these, Ulva lactuca has demonstrated a high potential due to its wide distribution and high productivity. In this work, a detailed chemical characterization of U. lactuca enabled the identification of polysaccharides as the main macromolecular compo...
The Biorefinery of the Marine Microalga Crypthecodinium cohnii as a Strategy to...
Moniz, Patricia; Martins, Daniela; Oliveira, Ana Cristina; Reis, Alberto; Silva, Teresa Lopes daABSTRACT: Chrypthecodinium cohnii lipids have been almost exclusively used as a source of Docosahexaenoic acid (DHA). Such an approach wastes the remaining microalgal lipid fraction. The present work presents a novel process to produce C. cohnii biomass, using low-cost industrial by-products (raw glycerol and corn steep liquor), in a 7L-bioreactor, under fed-batch regime. At the end of the fermentation, the bio...
Cascading Crypthecodinium cohnii biorefinery: global warming potential and tech...
Silva, Carla; Moniz, Patricia; Oliveira, Ana Cristina; Vercelli, Samuela; Reis, Alberto; Silva, Teresa Lopes daABSTRACT: Prior to the commissioning of a new industrial biorefinery it is deemed necessary to evaluate if the new project will be beneficial or detrimental to climate change, one of the main drivers for the sustainable development goals (SDG) of the United Nations. In particular, how SDG 7, Clean and Efficient Energy, SDG 3, Good Health and Well Being, SDG 9, Industry Innovation and Infrastructure, and SDG 12,...