17 documents found, page 1 of 2
Obtaining value from wine wastes: paving the way for sustainable development
Evtyugin, Dmitry; Aniceto, José P. S.; Marques, Rita; Portugal, Inês; Silva, Carlos Manuel; Serafim, Luísa S.; Xavier, Ana M. R. B.Winemaking is one of the main Portuguese industries and has significantly grown in recent years, thus increasing the quantity of obtained residues. These wastes have a complex chemical composition and structure, and, for this reason, their treatment and valorisation are simultaneously a challenge and an opportunity. After an overview of the wine industry and its wastes, this article intends to review the differ...
Getting Value from Pulp and Paper Industry Wastes: On the Way to Sustainability...
Amândio, Mariana S. T.; Pereira, Joana sofia; Rocha, Jorge M. S.; Serafim, Luísa S.; Xavier, Ana M. R. B.The pulp and paper industry is recognized as a well-established sector, which throughout its process, generates a vast amount of waste streams with the capacity to be valorized. Typically, these residues are burned for energy purposes, but their use as substrates for biological processes could be a more efficient and sustainable alternative. With this aim, it is essential to identify and characterize each type ...
Enzymatic potential of filamentous fungi as a biological pretreatment for acido...
Pereira, Joana; Cachinho, Ana; Melo, Marcelo M. R. de; Silva, Carlos M.; Lemos, Paulo C.; Xavier, Ana M. R. B.; Serafim, Luísa S.Spent coffee grounds (SCGs) are a promising substrate that can be valorized by biotechnological processes, such as for short-chain organic acid (SCOA) production, but their complex structure implies the application of a pretreatment step to increase their biodegradability. Physicochemical pretreatments are widely studied but have multiple drawbacks. An alternative is the application of biological pretreatments ...
Cellulosic Bioethanol from Industrial Eucalyptus globulus Bark Residues Using K...
Amândio, Mariana S.T.; Rocha, Jorge M. S.; Serafim, Luísa S.; Xavier, Ana M. R. B.The pulp and paper industry faces an emerging challenge for valorising wastes and side-streams generated according to the biorefinery concept. Eucalyptus globulus bark, an abundant industrial residue in the Portuguese pulp and paper sector, has a high potential to be converted into biobased products instead of being burned. This work aimed to evaluate the ethanol production from E. globulus bark previously subm...
Cellulosic bioethanol from industrial Eucalyptus globulus bark residues using k...
Amândio, Mariana S. T.; Rocha, Jorge M. S.; Serafim, Luísa S.; Xavier, Ana M. R. B.The pulp and paper industry faces an emerging challenge for valorising wastes and side-streams generated according to the biorefinery concept. Eucalyptus globulus bark, an abundant industrial residue in the Portuguese pulp and paper sector, has a high potential to be converted into biobased products instead of being burned. This work aimed to evaluate the ethanol production from E. globulus bark previously subm...
Microalgae as Contributors to Produce Biopolymers
Madadi, Rozita; Maljaee, Hamid; Serafim, Luísa S.; Ventura, Sónia P. M.Biopolymers are very favorable materials produced by living organisms, with interesting properties such as biodegradability, renewability, and biocompatibility. Biopolymers have been recently considered to compete with fossil-based polymeric materials, which rase several environmental concerns. Biobased plastics are receiving growing interest for many applications including electronics, medical devices, food pa...
Bacterially assembled biopolyester nanobeads for removing cadmium from water
Marques, Catarina R.; Wibowo, David; Rubio-Reyes, Patricia; Serafim, Luísa S.; Soares, Amadeu M. V. M.; Rehm, Bernd H. A.Cadmium (Cd)-contaminated waterbodies are a worldwide concern for the environment, impacting human health. To address the need for efficient, sustainable and cost-effective remediation measures, we developed innovative Cd bioremediation agents by engineering Escherichia coli to assemble poly(3-hydroxybutyric acid) (PHB) beads densely coated with Cd-binding peptides. This was accomplished by translational fusion...
Enrichment of a mixed microbial culture of PHA-storing microorganisms by using ...
Pereira, Joana; Queirós, Diogo; Lemos, Paulo C.; Rossetti, Simona; Serafim, Luísa S.Pulp and paper factories produce several residues that can be explored and valorized through polyhydroxyalkanoate (PHA) production via a three-step process. The objective of this work was focused on the selection step. Acidified hardwood spent sulfite liquor (HSSL), a fermented waste stream from a pulp and paper factory, was used to select a mixed microbial culture (MMC) in a sequencing batch reactor (SBR) oper...
Ethanol production from hydrolyzed kraft pulp by mono- and co-cultures of yeast...
Branco, Rita H. R.; Amândio, Mariana S. T.; Serafim, Luísa S.; Xavier, Ana M. R. B.Second-generation bioethanol production’s main bottleneck is the need for a costly and technically di cult pretreatment due to the recalcitrance of lignocellulosic biomass (LCB). Chemical pulping can be considered as a LCB pretreatment since it removes lignin and targets hemicelluloses to some extent. Chemical pulps could be used to produce ethanol. The present study aimed to investigate the batch ethanol produ...
Recovering PHA from mixed microbial biomass: Using non-ionic surfactants as a p...
Colombo, Bianca; Joana Sofia Pereira; Martins, Margarida; Torres-Acosta, Mario A.; Dias, Ana C.R.V.; Lemos, Paulo C.; Ventura, Sónia P. M.Polyhydroxyalkanoates (PHA) are biodegradable plastics of microbial origin, whose biodegradability and thermochemical properties make them greener alternatives to conventional plastics. Despite their high industrial potential, the PHA’ high production costs still hinder their application. Mixed microbial biomass combined with agro-industrial wastes are being used to strategically reduce these costs. However, it...