Browsing by Author "Cassoni, Ana C."
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- Assessment of drying conditions of a yeast-based solution for application on textile industrial wastewater treatment plantsPublication . Mendes, Marta; Cassoni, Ana C.; Moreira, Patrícia; Pintado, Manuela; Castro, Paula ML
- Assessment of drying conditions of a yeast-based solution for application on textile industrial wastewater treatment plantsPublication . Mendes, Marta; Cassoni, Ana C.; Moreira, Patrícia R.; Pintado, Manuela E.; Castro, Paula M. L.
- Deep eutectic solvent as a green alternative for lignin recovery: Optimization of lignin extraction from agrofood residues through experimental designPublication . Cassoni, Ana C.; Costa, Patrícia; Vasconcelos, Marta; Pintado, Manuela
- Enzymatic activity of extra- and intracellular extract from yeast isolated from textile wastewaterPublication . Cassoni, Ana C.; Moreira, Patrícia; Castro, Paula M. L.; Pintado, M. E.
- Innovative approach for decolorizing textile effluents using yeast-alginate capsulesPublication . Mendes, Marta; Cassoni, Ana C.; Moreira, Patrícia; Pintado, Manuela; Castro, Paula M. L.Textile industry is an economic activity that produces high volumes of effluents used in fabric processing that are discharged in the environment [1]. These discharged effluents loaded with synthetic dyes and other chemicals, are resistant to biodegradation and persistent in water, and are responsible for toxicity and mutagenic effects on the aquatic life, causing a potential risk to the aquatic ecosystems [2]. Traditionally, industry uses classic chemical methods to treat these effluents that are expensive and potentially harmful, since it could further generate large quantities of toxic by-products that are also difficult to eliminate [3]. In order to aid and complement the traditional wastewater treatment, a yeast-based solution for decolorization of textile industrial wastewater is under evaluation. This research aims to develop a new and innovative biological solution for the effective decolorization of the textile effluents usingalginate-calcium capsules filled with a proven decolorizing yeast.
- Lignin extraction from brewer's spent grain and evaluation of its antioxidant capacityPublication . Cassoni, Ana C.; Costa, Patrícia; Vasconcelos, Marta; Pintado, Manuela
- Novel eco-friendly method to extract keratin from hairPublication . Cassoni, Ana C.; Freixo, Ricardo; Pintado, Ana I. E.; Amorim, Manuela; Pereira, Carlos D.; Madureira, Ana Raquel; Pintado, Manuela M. E.Pig slaughtering for meat production is a major worldwide industry that generates many byproducts that can cause environmental problems. Nonetheless, it is possible to have a management of these residues toward the reuse and valorization of these byproducts. One opportunity focuses on the extraction of value-added compounds such as keratin since pig hair is composed by 80% of this protein. There are some methods for keratin extraction from human hair as other sources such as wool and feathers, but they bring many problems such as pollution, time-consumption, and high costs. This work uses a commercial detergent belonging to the category of degreasers, capable of fast and efficient dissolution of pig hair, followed by a simple filtration to remove residues from skin trimmings with fat and lard. The resulting solution is submitted to an ultrafiltration process to obtain a solution with higher protein content and purity, both at laboratory scale and pilot scale-up. Use of this keratin green extraction method allows to obtain a keratin product with protein purity up to 70% with a yield extraction of about 50%, which although lower than the previous methods allow protein integrity and cleaner technology. This method allows a relevant valorization of pig hair, using for the first time a simple, cost-effective, and environmentally friendly approach.
- Olive tree pruning material as a source of lignin with antioxidant capacity: optimization of lignin extraction through experimental designPublication . Cassoni, Ana C.; Costa, Patrícia; Vasconcelos, Marta; Pintado, Manuela
- Optimization of lignin extraction from grape stalks and evaluation of antioxidant activityPublication . Cassoni, Ana C.; Costa, Patrícia; Vasconcelos, Marta; Pintado, Manuela
- Ten years of lignin in the agro-food industry: research trends and evolutionPublication . Cassoni, Ana C.; Costa, Patrícia; Vasconcelos, Marta; Pintado, Manuela