24 documents found, page 1 of 3
Production of polysaccharide and protein edible films: Challenges and strategie...
Farhan, Abdulaal; Fazial, Farah Faiqah; Azfaralariff, Ahmad; Costa, Maria J.; Cerqueira, Miguel A.Polymeric films are among the main packaging materials used by food industry, and they can be produced using petrochemical-based polymers and biopolymers. Although the use of petrochemical-based polymers for food packaging is associated with a harmful impact on the environment, and human health through direct contact with food, the food industry cannot avoid their use due to the lack of fully viable alternative...
Bacteriophage delivery systems for food applications: Opportunities and perspec...
Costa, Maria J.; Pastrana, Lorenzo M.; Teixeira, J. A.; Sillankorva, Sanna; Cerqueira, Miguel Ângelo Parente RibeiroCurrently, one-third of all food produced worldwide is wasted or lost, and bacterial contamination is one of the main reasons. Moreover, foodborne diseases are a severe problem, causing more than 420,000 deaths and nearly 600 million illnesses yearly, demanding more attention to food safety. Thus, new solutions need to be explored to tackle these problems. A possible solution for bacterial contamination is usin...
Technologies for the study of hydropeaking impacts on fish populations: Applica...
Alexandre, Carlos M.; Quintella, Bernardo R.; Ovidio, Michaël; Boavida, Isabel; Costa, Maria J.; Palstra, Arjan P.; Lima, Rui L. Pedroso deDam construction and streamflow regulation are increasing throughout the world, with impacts in impounded aquatic ecosystems. Hydropower dams, some of them causing a phenomenon called “hydropeaking” during their operation, are known for having a variety of impacts on downstream aquatic biota, particularly fish, and respective habitat. This can result in significant changes, from the community (e.g., fish assemb...
Characterization of PHBV films loaded with FO1 bacteriophage using polyvinyl al...
Costa, Maria J.; Pastrana, Lorenzo M.; Teixeira, J. A.; Sillankorva, Sanna M.; Cerqueira, Miguel A.There is a current demand for novel active food packaging solutions using biodegradable materials and no chemical antimicrobial compounds, to ensure food quality and safety. This work involved the incorporation of Salmonella Enteritidis bacteriophage Felix O1, for potential use as an anti-Salmonella agent, into polyvinyl alcohol (PVOH) coatings and fibers deposited by casting and electrospinning on polyhydroxyb...
Optimization of CT procedures; a retrospective look in SARS-CoV-2/2019-nCoV time
Ramos, Rosa; Costa, Maria J.; Cruz, Clarinda; Cirilo, Aniano; Cavaleiro, Teresa; Figueiredo, Marisa; Rodrigues, Teresa; Abrunheiro, SandraSARS-CoV-2/2019-nCoV (COVID-19), was declared by the World Health Organization as an international pandemic, on March 11, 2020. This work aims to share procedures and best practices in CT, adopted in the context of a COVID-19 protocol established in the radiology department of the CHUC (HUC), as well as the characterization of the sample of patients evaluated as suspected of the COVID-19. A retrospective study ...
Bacteriophage IBB-PF7A loaded on sodium alginate-based films to prevent microbi...
Alves, Diana; Marques, Arlete L.; Milho, Catarina; Costa, Maria J.; Pastrana, Lorenzo M.; Cerqueira, Miguel Ângelo Parente Ribeiro; Sillankorva, SannaDespite the recent advances achieved in food industries to fulfil the growing consumer demand for high quality and food safety, microbial contamination remains a serious issue. This study aimed to incorporate IBB-PF7A bacteriophage (phage) onto sodium alginate-based films crosslinked with calcium chloride, to prevent poultry spoilage caused by Pseudomonas fluorescens. Films were prepared by casting and characte...
Optimization of a chitosan solution as potential carrier for the incorporation ...
Elguea-Culebras, Gonzalo Ortiz de; Bourbon, Ana I.; Costa, Maria J.; Muñoz-Tebar, Nuria; Carmona, Manuel; Molina, Ana; Sánchez-Vioque, RaúlThe occurrence of microorganisms in cheese rinds provokes important economic losses in cheese factories. This may be solved in an environmentally-friendly manner using different edible and biodegradable active coatings. Aromatic plants are particularly well placed to be included in such coatings as they contain different secondary metabolites with beneficial biological properties that could be transferred to th...
Physicochemical properties of alginate-based films: effect of ionic crosslinkin...
Costa, Maria J.; Marques, Arlete L.; Pastrana, Lorenzo M.; Teixeira, J. A.; Sillankorva, Sanna; Cerqueira, Miguel Ângelo Parente RibeiroAbstract The use of alginates as films in food applications has increased in the recent years due to their swelling capacity and overall functionality. This behaviour is a result of their capacity to crosslink with Ca2+ ion. Aiming to fully understand the effect of calcium chloride (CaCl2) crosslinking and the mannuronic (M) and guluronic (G) acid ratio (M/G) of alginate structure in the films properties, algin...
Electrospun nanofibres as a novel encapsulation vehicle for Felix O1 bacterioph...
Costa, Maria J.; Milho, Catarina; Teixeira, J. A.; Sillankorva, Sanna; Cerqueira, Miguel A.Background & Objectives: Food contamination is one of the main issues in the food industry, and food packaging has been driven towards novel technologies to reduce bacterial contaminations. One of the possibilities is the development of antibacterial packaging by the encapsulation of bacteriophages, namely Felix O1, can provide protection against microbial pathogens like Salmonella Enteritidis. This work aimed ...
Use of edible films and coatings in cheese preservation: Opportunities and chal...
Costa, Maria J.; Maciel, L.; Teixeira, J. A.; Vicente, A. A.; Cerqueira, Miguel Ângelo Parente RibeiroIn the last years, there has been a growing interest in the use of edible materials in food packaging. The cheese industry is clearly one of the sectors where these materials have a good opportunity for application, as shown by the recent developments on edible coatings and films for cheese. Edible coatings and films, besides its edibility, can be used to reduce weight loss and prevent the microbiological spoil...