11 documents found, page 1 of 2
Ultrasound-assisted extraction of hydroxytyrosol and tyrosol from olive pomace ...
Madureira, Joana; Albuquerque, Bianca R.; Dias, Maria Inês; Pinela, José; Calhelha, Ricardo C.; Santos-Buelga, Celestino; Margaça, Fernanda M.A.Ultrasound-assisted extraction (UAE) was used to recover hydroxytyrosol and tyrosol from olive pomace, a residue generated by the olive oil industry. The extraction process was optimized using response surface methodology (RSM), with processing time, ethanol concentration and ultrasonic power as the combined independent variables. The highest amounts of hydroxytyrosol (36 +/- 2 mg g(-1) of extract) and tyrosol ...
Effect of olive pomace extract application and packaging material on the preser...
Madureira, Joana; Melgar Castañeda, Bruno; Alves, Vitor D.; Moldão-Martins, Margarida; Margaça, Fernanda M.A.; Santos-Buelga, Celestino; Barros, LillianThe efficiency of natural olive pomace extracts for enhancing the quality of fresh-cut apples was compared with commercial ascorbic acid and two different packaging films (biodegradable polylactic acid (PLA) and oriented polypropylene (OPP)) were tested. The composition of atmosphere inside the packages, the physicochemical parameters (firmness, weight loss and color), the microbial load, total phenolic content...
Applications of bioactive compounds extracted from olive industry wastes: a review
Madureira, Joana; Margaça, Fernanda M.A.; Santos‐Buelga, Celestino; Ferreira, Isabel C.F.R.; Verde, Sandra Cabo; Barros, LillianThe wastes generated during the olive oil extraction process, even if presenting a negative impact for the environment, contain several bioactive compounds that have considerable health benefits. After suitable extraction and purification, these compounds can be used as food antioxidants or as active ingredients in nutraceutical and cosmetic products due to their interesting technological and pharmaceutical pro...
Bioburden in sleeping environments from Portuguese dwellings
Viegas, Carla; Dias, Marta; Monteiro, Ana; Faria, Tiago; Lage, Joana; Carolino, Elisabete; Caetano, Liliana Aranha; Gomes, Anita Q.A wider characterization of indoor air quality during sleep is still lacking in the literature. This study intends to assess bioburden before and after sleeping periods in Portuguese dwellings through active methods (air sampling) coupled with passive methods, such as electrostatic dust cloths (EDC); and investigate associations between before and after sleeping and bioburden. In addition, and driven by the lac...
Bioburden in sleeping environments from Portuguese dwellings
Viegas, Carla; Dias, Marta; Monteiro, Ana; Faria, Tiago; Lage, Joana; Carolino, Elisabete; Caetano, Liliana Aranha; Gomes, Anita Q.© 2020 Elsevier Ltd. All rights reserved.; A wider characterization of indoor air quality during sleep is still lacking in the literature. This study intends to assess bioburden before and after sleeping periods in Portuguese dwellings through active methods (air sampling) coupled with passive methods, such as electrostatic dust cloths (EDC); and investigate associations between before and after sleeping and bi...
Integrated in Silico and Experimental Approach towards the Design of a Novel Re...
Santos, Joana; Cardoso, Miguel; Moreira, Irina S.; Gonçalves, João; Correia, João D. G.; Verde, Sandra Cabo; Melo, RitaBiological therapies, such as recombinant proteins, are nowadays amongst the most promising approaches towards precision medicine. One of the most innovative methodologies currently available aimed at improving the production yield of recombinant proteins with minimization of costs relies on the combination of in silico studies to predict and deepen the understanding of the modified proteins with an experimenta...
Bioburden in sleeping environments from Portuguese dwellings
Viegas, Carla; Dias, Marta; Monteiro, Ana; Faria, Tiago; Lage, Joana; Carolino, Elisabete; Caetano, Liliana Aranha; Gomes, Anita QuintalA wider characterization of indoor air quality during sleep is still lacking in the literature. This study intends to assess bioburden before and after sleeping periods in Portuguese dwellings through active methods (air sampling) coupled with passive methods, such as electrostatic dust cloths (EDC); and investigate associations between before and after sleeping and bioburden. In addition, and driven by the lac...
Applications of bioactive compounds extracted from olive industry wastes: A review
Madureira, Joana; Margaça, Fernanda M.A.; Santos-Buelga, Celestino; Ferreira, Isabel C.F.R.; Verde, Sandra Cabo; Barros, LillianThe wastes generated during the olive oil extraction process, even if presenting a negative impact for the environment, contain several bioactive compounds that have considerable health benefits. After suitable extraction and purification, these compounds can be used as food antioxidants or as active ingredients in nutraceutical and cosmetic products due to their interesting technological and pharmaceutical pro...
Gamma irradiation effects on ochratoxin A: degradation, cytotoxicity and applic...
Calado, Thalita; Fernández-Cruz, María Luisa; Verde, Sandra Cabo; Venâncio, Armando; Abrunhosa, LuísOchratoxin A (OTA) is one of the main mycotoxins that can be found in food. The use of gamma radiation is a technique for preserving food that may exert some effects on mycotoxins. OTA was irradiated in its dry form, in aqueous and in methanolic solutions, and in wheat flour, grape juice and wine. Additionally, the toxicity of OTA irradiated in water was tested. In aqueous solutions, more than 90% of the OTA wa...
Gamma irradiation in ochratoxin A control
Calado, Thalita; Verde, Sandra Cabo; Venâncio, Armando; Abrunhosa, LuísICFC 2017 - International Conference on Food Contaminants (Book of Abstracts); Ochratoxin A (OTA) is one of the main mycotoxins found in food. Gamma radiation is used for preserving foods since it inactivates pathogens. The effect of irradiation on mycotoxins has been studied but results are contradictory. The different matrices and conditions used by several authors may have influenced reported results. The ai...