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Antimicrobial and antioxidant activities of quercetin-chitosan based edible films
Souza, Marthyna P.; Vaz, Antônio Fernando; Cerqueira, M. A.; Vicente, A. A.; Cunha, M. G. C.
Nanoemulsions of β-carotene using a high-energy emulsification-evaporation tech...
Silva, Hélder D.; Cerqueira, M. A.; Souza, B. W. S.; Ribeiro, Clara; Avides, Maria do Carmo; Quintas, Mafalda A. C.; Coimbra, Jane Sélia dos ReisNanoemulsions of β-carotene were prepared using a high-energy emulsification-evaporation technique based on a 23 level factorial design. Results show that it is possible to obtain dispersions at a nanoscale range. Process parameters such as time and shear rate of homogenization affected significantly particle size distribution in terms of volume-weighted mean diameter and surface-weighted mean diameter. The obt...
Coagulant and antibacterial activities of the water-soluble seed lectin from Mo...
Ferreira, R. S.; Napoleão, Thiago H.; Santos, Andréa F. S.; Sá, R. A.; Cunha, M. G. C.; Morais, M. M. C.; Lucca, R. A. Silva; Oliva, M. L. V.Aims: The aim of this work was to analyse the coagulant and antibacterial activities of lectin isolated from Moringa oleifera seeds that are used for water treatment. Methods and Results: The water-soluble M. oleifera lectin (WSMoL) was separated from nonhemagglutinating components (NHC) by chitin chromatography. WSMoL fluorescence spectrum was not altered in the presence of ions that are often present in hig...
Physical and thermal properties of a chitosan/alginate nanolayered PET film
Cunha, M. G. C.; Cerqueira, M. A.; Souza, Warlene Silva de; Carvalho, Sandra Maria Gomes de; Quintas, Mafalda A. C.; Teixeira, J. A.; Vicente, A. A.Nanolaminates have been reported to have applications in different areas, such as the preparation of multilayer films, coating biomedical appliances or multilayer edible coatings with enhanced properties for applications in the food industry. This work aims at characterizing the surface properties, water vapor permeability, and thermal and mechanical properties of a nanolayered film. The film was produced using...
Purification of a lectin from Eugenia uniflora L. seeds and its potential antib...
Oliveira, M. D. L.; Andrade, C. A. S.; Magalhães, N. S.; Coelho, L. C. B. B.; Teixeira, J. A.; Cunha, M. G. C.; Correia, M. T. S.Aims: The aim of this work was to analyse the antimicrobial properties of a purified lectin from Eugenia uniflora L. seeds. Methods and Results: The E. uniflora lectin (EuniSL) was isolated from the seed extract and purified by ion-exchange chromatography in DEAE-Sephadex with a purification factor of 11·68. The purified lectin showed a single band on denaturing electrophoresis, with a molecular mass of 67 kDa...
Multi-point covalent immobilization of β-galactosidase onto a polysiloxane-poly...
Neri, D. F. M.; Balcão, V. M.; Cunha, M. G. C.; Júnior, L. B. C.; Teixeira, J. A.
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